Home

warning

1. 52 N64X IM N84XIM Wiring Pictorial for Ice Maker Wired to LOC o 52 Refrigerator AC Cordier 70 N62X N82X Optical Control Assembly 53 N64X IM N84XIM Wiring Schematic for Ice Maker Wired to Front BOX ant tr ette tei erc cedens rs 53 Refrigerator AC Cord 70 Removal and Installation of Optical Control Assembly 53 N64X IM N84XIM Wiring Schematic for Ice Maker Wired to Modes of Operation neci teet ere ied 54 White AC Power Cord seen 72 AUTO MORE SR 54 N64X IM N84XIM Wiring Pictorial for Ice Maker Wired to AUTO AC Operation cocotte e ripe 54 White AC eeeeessessesseeseeeeeeee tnnt 72 AUTO LP Gas Operation 54 Shift from AUTO LP GAS to AUTO 54 No AC Power and No Flame 54 Troubleshooting a F no FL and AC Faults 54 AG Manuial Mode ertet ssinpemntnenns 54 LP Gas Manual Mode 54 No AC Power or Loss of AC Power 55 Troubleshooting a A no AC Fault 55 AC Power Restored 55 Flame Fails to Ignite or Flame Goes Out 55 Clearing Gas Lock Out etenen dens 55
2. 35 Troubleshooting Flowcharts 11 Te Vdc Ventilation 35 Blank Display Refrigerator does not turn on 11 Cooling Unit 37 F no FL Fault Code Burner failed to ignite or reignite 12 37 S Sr Fault Code Flame sense circuit failure 13 Heat Absorption 0 37 dc LO Fault Code Low DC voltage 13 Leveled Operation 37 dc HI Fault Code DC voltage 14 Gradual Decrease in Cooling 37 dc rE Fault Code DC relay stuck closed 14 Cooling System Monitoring 37 dc HE Fault Code DC heater failed open 15 First No Cooling Fault 37 A no AC Fault Code No AC power available 16 Two Recorded No Cooling Fault Occurrences 37 r AC rE Fault Code AC relay stuck closed 16 Troubleshooting Cooling 38 AC HI Fault Code AC voltage 17 Poor or No Cooling on AC
3. 38 AC LO Fault Code AC voltage low 17 Poor or No Cooling on LP Gas Mode 38 H AC HE Fault Code AC heater failed open 18 Poor or No Cooling on DC Mode 3 Way Models 38 Food Compartment Lamp Switch 19 Refrigerant tenersi nRae 38 Lamp Switch Operation 19 Disposal of Cooling Unit sss 38 d dr Fault Code Door open for more than 2 minutes 19 Cooling System Diagnostic Flowchart s 39 Lamp Switch Testing Procedure 19 Replacing the Cooling Unit 41 Thermistor Failure Fault Controls in backup operating Removing the Refrigerator from the Enclosure 41 System 20 Removal ONGooling 42 Backup Operating System BOS 20 Installation of Replacement Cooling Unit 42 N61X N81X Backup Operation 20 Reinstallation of Refrigerator into Enclosure 44 N62X N82XN64X N84X Backup Operation 20 s Power Board Resetting Procedure 21 Electronic Components 45 n no co Fault Code No cooling detec
4. 27 lower than 8517599 50 eeeenigcseme t 28 Controls 51 Solenoid Gas Valves sess 28 N61X N81X Optical Control Assembly 51 New Style Solenoid Gas Valve 28 FROME BOX NE RHET PEE 51 Old Style Solenoid Gas Valve 28 Removal and Installation of Optical Control Assembly 51 Solenoid Gas Valve Connections 28 Modes of Operation ssssssssseme 52 E by Refrigerator Service Manual www norcold com cda N6XX N8XX Models 1 AUTO 52 Lowilce Yield aaia aiii 69 NO AC PoOWel ain EN 52 Water Valve Operation 69 AC Power Restored 52 Water Valve Solenoid Resistance 69 No AC and No Flame essen 52 Mold Heater Resistance 70 GAS ModE acriter irte Gr eene Ge rise rias 52 Checking Voltage at Motor Terminals 70 52 Winterizing the Ice Maker Water 70 Backup Operating
5. Figure 57 Checking voltage to motor across test points N and M 70 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Ice Maker Solenoid Water Valve Black ribbed Black smooth AC Power Cord Power Board N64X IM N84XIM Wiring Pictorial for Ice Maker Wired to Refrigerator AC Cord Switch Shut off arm OFF Mold Heater Thermostat Thermal Fuse 2 Black KS Green Ground NN 9 Fill switch NO Solenoid water valve N64X IM N84XIM Wiring Schematic for Ice Maker Wired to Refrigerator AC Cord NOROCOYD anb Refrigerator Service Manual www norcold com cda N6XX N8XX Models 7 1 Ice Maker Ground Connection GRN VERT Solenoid Water Valve A amp Au BRN BRUN WHT BLANC WHT BLANC NEUTRAL RIBBED NEUTRE A NERVURES BLK NOIR HOT SMOOTH AC Power Cord CHAUD PLAT N64X IM N84XIM Wiring Pictorial for Ice Maker Wired to White AC Power Cord Switch Shut off arm OFF Mold Heater o Thermal Fuse Thermostat 2 Black KS Green Ground TEEN Fill switch NO Solenoid water valve N64X IM N84XIM Wiring Schematic for Ice Maker Wired to White AC Power Cord 72 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Publication No 619394E 0 28 04 OFF GAL GA ta
6. 9 ea 60 Exiting the Diagnostic Mode 60 Screens and Diagnostic Segments Information 61 Diagnostic Mode Models N64X N84X 63 Diagnostic Mode AA 63 Accessing the Diagnostic Mode 63 Changing Screens B af 63 Exiting the Diagnostic Mode 63 Screens and Diagnostic Segments Information 64 Ice Maker TL 66 Wire Harness 66 Fill TUDE ie ee etit ree trm 66 Water Cn 66 Nerii 66 Replacing the Ice maker 67 Ice Maker Troubleshooting Chart 67 Cycle Test 5r ete Hte e eit ie dant 68 Water Fill AdjUStImTOrnt oec rnit i nont tpud btt 69 Refrigerator Service Manual www norcold com cda N6XX N8XX Models dich About this Manual This service manual provides maintenance diagnostic and repair information for NORCOLD models N6XX and N8XX N6XX N8XX gas absorption refrigerators It is a reference tool designed for technicians who are knowledgeable in the theory and operation of gas electric absorption refrigerators liquefied petroleum LP gas propane systems and AC DC electrical systems as installed in a variety of recreati
7. AC voltage lower than 108 volts Press the a button to return to screen 1 MODE ROAD LBA Refrigerator Service Manual www norcold com cda N6XX N8XX Models 65 ICE MAKER The ice maker is a factory installed accessory The components that support the ice maker are the water valve water fill line water fill tube and the wire harness The ice maker and components are shown in Figure 49 Wire Harness The wire harness Figure 49 a has four wires m Black line L voltage with thermal fuse for ice mold overheating protection It has an insulated female quick connect terminal m White neutral N The insulated male quick connect terminal is the 120 Vac neutral N conductor m Brown supplies 120 Vac power to the water valve solenoid during the fill cycle It connects to water valve solenoid M terminal m Green ground Connects to the metal cabinet metal plate along with the 120 Vac power cord ground wire Fill Tube The fill tube is foamed into the top of the cabinet It is not a replaceable component Fill Tube Shut Off Arm Ice Maker Water Valve Assembly without water line heater Water Valve Figure 49 b shows an ice maker solenoid water valve that has a 12 Vdc water line heater The 12 Vdc heater is controlled by a thermostatic switch mounted on the valve s mounting bracket Figure 49 c shows an ice maker solenoid water valve without a 12 Vdc water line heater Sp
8. 3 way refrigerators AC LP DC Disconnect the DC heater wire leads from power board terminals FLP DC HEAT and DC_HT GND Disconnect the AC power cord from the power board Remove the power board cover retaining screws then remove the cover Disconnect the AC heater wires from power board terminals AC HT LO1 and AC HT HI 3 way refrigerators AC LP DC Remove DC heater 3 way models only Retain the heater for reinstallation 16 15 16 1 18 19 20 Remove the thermistor from the 10th fin Remove eight retaining screws along with washers from the freezer plate Remove four retaining screws from the fin assembly Cut or remove the tape around the edge of the foam plug Remove two absorber bracket retaining screws Separate the cooling unit from the refrigerator cabinet To separate a Grab the cooling unit by the liquid heat exchanger b Pull cooling unit upward at a slight angle to unseat the foam plug Remove the condenser retaining screw See Figure 29 page 43 Pull the cooling unit from the cabinet Installation of Replacement Cooling Unit The sealant must be applied correctly to prevent air from being drawn into the cooling unit s high and low evaporators Clean the old sealant from the back of the evaporator plate fin assembly cooling unit and the cabinet step Apply a 1 2 inch bead of sealant to the cooling unit low and the high temperature evaporators
9. DC voltage low DC voltage high AC relay stuck closed Door ajar AC mode selected but not available AC heater failed open Press the button to bring up screen 5 Screen L Stored Fault History Screen 5 also displays stored fault history using lighted LED segments The illustration provides fault history information and assigned LED segments f a fault occurred its assigned LED will light Thermistor failure Flame sense failure AC voltage low Press the button to bring up screen 6 AC voltage high Refrigerator Service Manual www norcold com cda N6XX N8XX Models 61 Screen Erase Fault History Data Screen 6 provides a way to erase stored fault history from memory To erase stored fault history 1 Press and hold the button when FE and m display 2 Release oto when and display 3 Wait five seconds 4 Press and hold the button until and r display again Press the button to bring up screen 7 Screen Power Board Inputs I Screen 7 displays live power board inputs using lighted LED segments The illustration below provides live inputs information and assigned LED segments f a power board input is active or live its assigned LED will light Food compartment light is off and door is closed Thermistor sensing Sensing burner flame fin temperature
10. Selecteur d alimentation 7 Microprocessor LED DEL LED DEL Temperature switch Selecteur a la temperature www norcold com cda N6XX N8XX Models 47 Models Modeles N64X N64X 3 N84X amp N84X 3 Display board overlay Exposer le panneau de planche Display board Exposer le panneau Models Modeles N62X N62X 3 N82X amp N82X 3 Display board overlay Exposer le panneau Display board Exposer le panneau 5 Amp Fuse 5 Amp Fond 120 VAC AC heater CA chauffage N62X N82X N64X N84X N64X 3 N84X 3 Wiring Pictorial 12V GND1 DC HT GND Power board Panneau de distribution DC HEATER 12 VDC 12 VCC RED WHT RGE BLANC BLK WHT NR BLANC AC HT HI1 AC HT LO1 L2 L1 3 Amp Fuse 3 models a 3 Amp Fond 3 modeles 30 Amp Fus3 30 Amp Fond Spark electrode Declencher l electrode 12 VDC VCC 12 VCC dalv3H 2 Gas valve Gazer la soupape DC heater 3 models CC chauffage 3 modeles a voc aam 12 VDC 12 VCC YEL JAUNE Gas solenoid valve Electrovanne a gaz DC heater CC chauffant YEL JAUNE RED ROUGE RED ROUGE RED ROUGE RED ROUGE Temperature sensor Thermosonde WHT RED BLANC RGE 1 Divider heater 1 Chauffant diviseur BLK NOIR BLU BLEU T GRNIVERT WHT VIO BLANC VIO BLK NOIR La BLK NOIR ER heater CA chauffant 1 I d 120 VAC 12
11. for propane gas use only The system working leak detector or a commercial grade leak test solution pressure is 10 5 and 11 5 in water column Propane The use of home made soap and water leak test gas pressures below 10 5 in w c or above 11 5 in solution should be avoided if possible When applying w c will affect heat output which in turn will affect leak test solutions apply the solution over the entire cooling efficiency Propane gas flow control is joint using a small brush or spray applicator monitored by electronically by the controls flame sensing circuit If the flame sensing circuit does not detect a burner flame within 30 seconds after initiating ignition power to the gas valve is turned off and gas mode is locked out Due to low system operating pressure it may take a few minutes for bubbles to appear if the connection is leaking Hidden joints should be examined thoroughly using an inspection mirror Refrigerator Service Manual www norcold com cda N6XX N8XX Models 27 Errata Sheet 01 16 04 Components When working on the refrigerator LP gas system Donotalter or modify the burner tube anti vibration loop B Do cross thread fittings Exercise extreme care when connecting and disconnecting propane gas components B Leak test all of the refrigerator propane gas system fittings after servicing replacing or repairing any LP gas system component Solenoid Gas Valves Units with serial
12. AGC type fuse Adjust clips to ensure fuse contacts are firm in clips and making full contact Replace power board r AC rE Fault Code AC relay stuck closed Models and fault indicator displayed AC LP GAS AUTO N62X N82X Flame sense circuit failure Replace power board See page 44 alternating yaible L E EN Display We N64X N84X K 16 N6XX N8XX Models www norcold com cda Refrigerator Service Manual AC LO Fault Code AC voltage low Before beginning this procedure Determine if a certain AC power source sets the AC LO fault code generator shore power inverter Make sure no other appliance or lighting circuit is connected to the refrigerator AC circuit Make sure extension cords are not being used to supply AC power to the refrigerator Model and indicator displayed pitemating SANS vou 1 A a Display Y N64X N84X Measure voltage at power board AC cord connection Fault related to RV AC power distribution component or circuit supplying AC power to refrigerator Replace power board Voltage lower than 108 Vac AC HI Fault Code AC voltage high Before beginning this procedure Determine if a certain AC power source sets the AC HI fault code generator shore power inverter Model and indicator displayed AlteMating si ge N64X N84X Measure voltage at power boar
13. Absorber coils Intake vent Figure 4 Rear View Roof Exhaust Venting Baffles The minimum and maximum clearances for installing the refrigerator or correcting ventilation problems on roof vented units are listed in Table 1 Baffles are required whenever installations exceed maximum clearances listed in Table 1 Figure 4 shows baffle locations Vertical Angled Baffles Vertical angled baffles are required when the roof exhaust vent is installed inboard of the condenser Figure 5 shows the angled vertical baffles required on inboard roof vent installations The horizontal wall baffles are required whenever the distance between the cooling unit and the interior surface of the outside wall exceeds one inch Minimum Maximum Bottom Oinch 0 inch Sides each 0 inch 1 8 inch Top 0 inch 1 4 inch Rear 0 inch 1 inch Table 1 Clearances for Roof Vented Installations Angled baffles Required when the roof exhaust vent is inboard of the condenser 1 4 inch Y S or less Condenser Baffles Required when the opening between the outside wall and cooling unit is over 1 inch Air intake vent Figure 5 Baffles Required for an Inboard Roof Exhaust Vent Installation NORCOLD and 0 Refrigerator Service Manual www norcold com cda N6XX N8XX Models 23 Double Si
14. For example in AUTO AC the AC LED will come on and stay on for approximately 10 seconds In AUTO mode the controls maintain gas lock out until a full cooling cycle on AUTO AC is completed Turning the refrigerator OFF and back ON also clears AUTO LP Gas Operation gas lock out In AUTO mode the controls shift to LP gas when AC power is not available or interrupted The shift to AUTO LP is as follows on and operating in AUTO mode AUTO lower equipped with the original power board p n 619353 and optical control assembly p n 619350 will only display fault indicator A 2 The AC LED comes on as the controls LP GAS verify AC power availability AUTO 1 The AUTO LED indicates the unit is AC LP GAS N62X N82X models with serial number 854467 and 3 Since AC power is not present the Troubleshooting a F no FL and A no AC controls shiftto LP gas The LP LED ac pgs Faulis NE comes on to signal the start of a 30 Use the following references to identify troubleshoot seconds trial for ignition and correct an ignition failure and or no AC faults B Page 12 FL fault codes troubleshooting 4 Thecontrols sense the flame turn off Mm flowchart the LP GAS LED leave the AUTO LED Page 16 A no AC fault codes troubleshooting on to indicate AUTO mode operation AUTO flowchart Page 62 Diagnostic Mode N62X N82X Models Shift from AUTO LP GAS to AUTO AC Screen 4
15. shown closed Figure 9 New Style Solenoid Gas Valve DC connections Gas pressure test port Gas outlet fitting Gas inlet fitting from RV LP gas system Manual shut off Mounting bracket shown open Figure 10 Old Style Solenoid Gas Valve 28 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Orifice The orifice controls the flow of propane gas to the burner When replacing the orifice always use the size orifice specified Using the wrong size or a damaged orifice will alter the amount of propane flowing to the burner N62X N64X units with serial number 886961 and higher and N82X N84X units with serial number 889988 and higher are equipped with an LP16 cap type orifice All other units with serial numbers lower than those listed were originally equipped with an 0 155 jeweled orifice See Figure 11 A WARNING Do not separate cap style LP16 orifice from its adapter Separating the assemblies breaks the seal and causes an LP gas leak A WARNING Do not use compressed air to clean a jeweled type orifice The air pressure may dislodge the orifice from the adapter A CAUTION Do not install cap style LP16 orifice in a burner that uses jeweled type orifice or vise versa The orifice adapter s threads are not compatible Each orifice must be matched to its burner Burner The burner see Figure 12 provides primary air access and acts as the fuel mixing c
16. Clean water valve inlet strainer D Test water valve operation see page 69 Check AC power supply Shut off arm in the OFF position Mold over filled Water valve washer seal damaged W Mold dripping water overflowing set incorrectly Water fill adjustment screw Lower the shut off arm to the ON position Check position of water valve orifice Replace water valve Reset the water adjustment screw Replace water valve Water valve washer seal damaged Ice maker will not cycle AC power available Motor failure Mold thermostat failure Wire harness thermal fuse open Replacing the Ice maker To remove the existing ice maker see Figure 50 1 Unplug the refrigerator or ice maker AC power cord from the RV AC power receptacle 2 Remove the freezer bolts along with the flat washers two 1 inch long screws Remove two upper mounting screws two 1 2 inch screws 4 Unplug the wire harness from the ice maker 5 Remove two mounting plate screws two Phillips head screws then remove the mounting plate 6 Remove the shut off arm and install it in the new ice maker 7 Attach the mounting plate to the bottom of the new ice maker two Phillips head screws Tighten screws firmly 8 Plug the wire harness into the ice maker Make sure the plug locking tab locks the plug in the connector 9 Attach the mounting plate to the freezer plate two 1 inch
17. In AUTO mode the controls shift automatically from AUTO LP GAS back to AUTO AC when the controls detect that AC power has become available 54 N6XX N8XX Models www norcold com cda Refrigerator Service Manual AC Manual Mode When the AC Manual Mode is selected AC power is the only heat energy source selected by the controls When the AC Manual Mode is selected 1 Mode of operation selected is AC LP GAS indicated by the AC LED AUTO 2 The AC LED stays on as long as the AC Manual Mode is selected No AC Power or Loss of AC Power When no AC power or AC power is lost the controls 1 Provide a visual warning by flashing ac ducas the A no AC fault code AUTO 2 Recordand store the no AC fault in diagnostics nonvolatile memory fault history Troubleshooting a A no AC Fault Use the following references to identify troubleshoot and correct a no AC fault Page 16 AC fault codes troubleshooting flowchart Page 62 Diagnostic Mode N62X N82X Model Screen 4 AC Power Restored When AC power is restored to the power board the controls 1 Automatically restore AC Manual Mode operation 2 Clearthe A fault code from the screen However the recorded fault history will not be erased from memory 3 Display the AC LED LP Gas Manual Mode When LP GAS Manual Mode is selected LP gas propane is the only heat energy source selected by the controls When the LP GAS Manu
18. LP mode indicator Pressing the MODE switchbutton displays the dc mode indicator Flame Fails to Ignite or Flame Goes Out No DC Power to DC Heater Circuit gk If the controls do not sense a flame within the 30 If the controls do not sense that DC power is available seconds trial for ignition the controls to the DC heater circuit the controls 1 Shut off power to the solenoid gas valve 1 Display the dc HE fault code Alternating 2 Set gas lock out See NOTE 5 below de n L Display 3 Display a flashing visual warning no FL shown below 2 Soundthe audible alarm The alarm is an intermittent beeping tone Pressing the mode switchbutton silences the alarm 4 Sound an audible alarm The alarm is an intermittent beeping tone Pressing the mode switchbutton silences the alarm Alternating 10i AUTO LP mode remains in gas lock out until a full cooling cycle on AUTO AC is completed Gas lock out can also be cleared by turning the refrigerator OFF then back ON Refrigerator Service Manual www norcold com cda N6XX N8XX Models 59 DIAGNOSTIC MODE MODELS N62X N82X Display Figure 45 N62X0 N82X Optical Control Assembly Diagnostic Mode The Diagnostic Mode uses nine diagnostic channels Accessing the Diagnostic Mode commonly known as screens to display live To access the Dia
19. Leak test LP gas connections during the 30 second trial for ignition A WARNING Do not attempt to repair LP gas leaks with the refrigerator in operation Before attempting to repair a gas leak B Turn OFF the refrigerator B Close the LP gas valve and the solenoid gas valve manual shut off Refrigerator Service Manual www norcold com cda N6XX N8XX Models 31 Drip cup Burner box cover Solenoid gas valve manual shut off Figure 17 Drip Cup and Burner Box Cover I Canister Baffle Burner tube Electrode Burner Figure 18 Burner and Components 32 N6XX N8XX Models www norcold com cda Refrigerator Service Manual ELECTRICAL REQUIREMENTS AND COMPONENTS DC Voltage Requirements and Polarity Operating controls require 10 5 to 15 4 Vdc to operate The positive wire lead connects to power board terminal 12VDC the negative wire lead connects to terminal GND1 Power Board DC Fuse A WARNING Never replace a fuse with a higher amp rated fuse Always use the specified fuse The controls circuit fuse is a standard 5 amp tan color automotive blade type fuse It is located on the power board terminal F1 DC Power Wiring Requirements A WARNING Never use undersized wires to supply DC power to the power board The use of undersized wires can cause low voltage and high amp draw conditions The high amp draw caused by a circuit using undersized wires will cause the
20. and to the foam plug step See Figure 30 Mate the cooling unit foam plug section with the cabinet step opening The foam plug must seat evenly against the cabinet step Fasten the condenser section to the cabinet Do not overtighten the condenser retaining screw Figure 29 page 43 Fasten the freezer plate to the cooling unit eight screws with washers Do not overtighten the freezer plate screws Fasten the fin assembly to the cooling unit four screws Do not overtighten fin screws Attach the thermistor to the 10 fin counting from right to left Fasten the absorber section of the cooling unit to the cabinet two screws Do not overtighten retaining screws Tape the edge of the foam plug to the cabinet Use HVAC metallic tape or heavy duty duct tape N62XF N82XF N64XF N84XF Fan models Reinstall the fan bracket fan thermostat and wiring See wiring diagram on the outer surface of the fan bracket or refer to Figure 27 page 36 42 N6XX N8XX Models www norcold com cda Refrigerator Service Manual 10 11 15 16 17 18 19 20 N64XIM N84XIM ice maker a Reinstall the ice maker water valve b Reconnect the ice maker water line c Connect the brown and the white wires to the water valve solenoid terminals Install the burner box Install the burner tube and burner assembly Do not overtighten fittings Install the gas valve and connect the burner tube to the valve Do
21. it has a female quick connect type terminal The smooth wire is the neutral lead has a male quick connect type terminal Refer to pages 71 and 72 for ice maker wiring pictorials and diagrams All N6431M and N8431M units are equipped with an independent AC power cord white in color to supply 120 Vac to the ice maker only 12 Vdc Ventilation Fan The 12 Vdc ventilation fan shown in Figure 24 enhances ventilation in sidewall venting installations unit installed in RV slide out enclosures The letter F in a model number is used to identify refrigerators with a factory installed 12 Vdc ventilation fan All sidewall vented units must be equipped with a ventilation fan to prevent combustion gases and hot ventilation air from stagnating in the enclosure Ventilation fans are supplied 12 Vdc through power board connections Fan operation is automatically controlled by a thermostatic switch mounted on the first condenser fin See Figure 25 The switch turns the fan on when the temperature on the first condenser fin is approximately 130 F The switch turns the fan off when fin temperature falls to approximately 115 F NORCOLD fan kit is wired to the power board 12 connections using Y type wire connector The fan circuit is protected by an in line fuse included in the kit The fuse part of the fan kit wiring is a fast acting 1 amp x 17 AGC type See Figure 26 The wiring pictorial for field installed fan is shown
22. AUTO LP mode any time AC power is not available The controls shift to AUTO LP as follows A HUE r LJ d TL Display 1 The AUTO mode operation indicator AU displays 2 AU and indicator alternate flashing on the display while the controls search for AC power 3 When AC power is not present the controls shift to AUTO LP mode AU and LP alternate flashing on the display as the controls start a 30 seconds trial for ignition 30 le Display 4 Thecontrols sense the flame turn off the AU and LP and display the ON LED See NOTE 1 Shift from AUTO LP GAS to AUTO AC In AUTO mode the controls shift automatically from AUTO LP GAS to AUTO AC any time the controls sense that AC power is available No AC Power and No Flame When AC power is not present and a flame is not sensed at the end of the 30 seconds trial for ignition the controls 1 Shut off power to the solenoid gas valve 2 Set gas lock out See NOTE 2 3 Sound the alarm an intermittent beeping tone 4 Provide a visual warning by flashing alternating no AC and no FL no flame fault codes shown below Alternating L PE LI L Display Alternating na Fri Display 5 Record and store the no and no FL faults in diagnostics nonvolatile memory fault history AUTO LP mode remains in gas lock out unt
23. Figure 47 1 Press and hold both the and buttons at MEME Accessing the Diagnostic Mode To access the Diagnostic Mode the same time The N64X N84X optical control display uses a dual 7 segment LED module to display the screen number Release the and 3 Don as screen and diagnostic information Information made up of four E letters or digits displays in an alternating sequence displays Fault history live inputs and outputs is presented using LED ons The diagnostic LED segments if 3 A few seconds later EI displays present display to the right of the screen number Diagnostic LED segments identification numbers See Figure 48 Changing Screens To change screens press and hold the 8 button until the next screen displays Exiting the Diagnostic Mode To exit the Diagnostic Mode SENT 1 Press and hold C buttons at the TEMP E Ga 1 same time 2 Release the 8 E buttons as soon as the MODE SET ON Light J ESS display shows Turning the refrigerator OFF then back ON also exits Figure 48 Diagnostic LEDs Segments Identification the Diagnostic Mode ss EXT Refrigerator Service Manual www norcold com cda N6XX N8XX Models 63 Screens and Diagnostic Segments Information Screen Diagnostic Mode Active Screen 1 confirms that the Diagnostic Mode is active A few seconds after the screen number appears all LED segmen
24. Fresh air must be directed to flow through the surface areas of the absorber coils condenser fins and the outer surface of the canister Corners and structural pockets where heated air may stagnate must be reduced in size or completely eliminated An additional challenge with double sidewall venting is the depth of the enclosure The deeper the enclosure the greater the impact on the air flow through the rear of the refrigerator Taking the three key design considerations and the variable depth requirement into account NORCOLD developed and tested several baffle arrangements for the N6XX and N8XX models versus their ability to meet the ANSI standards As the result of this testing NORCOLD was able to reduce the baffle configuration down to two baffles for the N6XX and N8XX models It should be noted that baffle arrangements are different if the enclosure depth is greater or less than 26 inches The baffle configurations are shown in Figure 6 page 25 and Figure 7 page 26 Air Intake Vent The ventilation and combustion air flow into the enclosure through the air intake vent See Figure 6 page 25 and Figure 7 page 26 Sidewall Exhaust Vent The heat absorbed by ventilation air and combustion gases flow out of the enclosure through the sidewall exhaust vent See Figure 6 page 25 and Figure 7 page 26 for details 24 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Distance between wal
25. Press the button to bring up screen 8 Screen H Power Board Outputs Screen 8 display live power board outputs using lighted LED segments The illustration below provides live outputs information and assigned LED segments If the power board output is active or live the assigned LED will light AC power to AC heater DC power to divider heater DC power to gas valve DC power to DC power to ignition circuit light switch Press the button to bring up screen 9 Screen 5 Power Board DC Voltage Status Screen 9 display power board DC voltage status using lighted LED segments The illustration below provides DC voltage status and assigned LED segments f DC voltage at the power board within normal range 10 5 to 15 4 Vdc LED segment 4 will be on DC voltage higher than 15 4 volts DC voltage normal DC voltage lower than 10 5 volts Press the button to return to screen 1 62 N6XX N8XX Models Errata Sheet 01 16 04 www norcold com cda Refrigerator Service Manual DIAGNOSTIC MODE MODELS N64X N84X Display NORO 5 bx Figure 47 Models N64X N84X Optical Control Assembly Diagnostic Mode The Diagnostic Mode uses ten diagnostic channels commonly known as screens to display live inputs outputs and fault history Each screen is identified by a number which shows in the optical control assembly display See
26. Q Refrigerators with serial number 854647 and higher 300 W 2 5 A 48 120 Vac resistance of 41 25 LP gas propane Operating pressure 10 5 to 11 5 in w c Heat input 1500 Btu h 11 in w c Orifice new style Orifice old style 0 155 jeweled Gas ignition Automatic with flame sensing circuit Electrode tip to burner air gap 1 8to 3 16 in Refrigerator Service Manual www norcold com cda N6XX N8XX Models 5 N64X N64X 3 N84X N84X 3 Models 6 Storage volume N64X N64X 3 N84X N84X 3 Rough opening dimensions H x W x D N64X N64X 3 52 7 8 in x 23 1 2 in x 24 in N84X N84X 3 59 7 8 in x 23 1 2 in x 24 in Decorative panels dimensions Thickness 3 6 in Freezer door H x W both models 14 17 32 in x 21 19 32 in Fresh food compartment door N64X N64X 3 31 5 8 in x 21 19 32 in N84X N84X 3 38 5 8 in x 21 19 32 in Controls yp Electronic with built in diagnostic function ON OFF MODE TEMP SET switches Raised push button Temperature settings 1 cold 9 coldest Temperature sensor Thermistor fin mounted 10 fin Off level operating limits Side to side 3 degrees maximum Front to back 6 degrees maximum DC power Controls operating voltage 10 5 to 15 4 Vdc DC fuse F1 in power board 5 A tan color automotive blade type DC heater rating 225 W 16 A 14 Vdc resistance of 0 87 DC heater operating voltage 3 way models only Fuse DC heater F2 in power board 30 A green color
27. Slide Switch Slide left to select AUTO operation gt Slide right to select GAS operation GAS LED Amber LED indicates LP gas operation Flashes fault codes set by the controls Temperature Setting Selector Switch 5 Position Slide Switch gt Slide right to select a colder setting gt Setting range 1 cold 9 coldest Figure 36 N61 X N81X Optical Control Assembly N61X N81X Optical Control Assembly The optical control assembly communicates with the power board through a foamed in wire harness Drilling or puncturing the refrigerator rear panels may cause damage to the wire harness Controls and related features are shown in Figure 36 The optical control assembly with front box attached is shown in Figure 37 The optical control assembly connected to the wire harness is shown in Figure 38 Front Box Two tabs lock the front box to the optical control assembly A retaining screw on the hinge side retains the front box to the divider Shifting the refrigerator door swing requires shifting the front box to the selected hinge side Removal and Installation of Optical Control Assembly To remove the optical control assembly 1 Turn off the refrigerator 2 Remove the front box retaining screw then remove the front box 3 Remove the optical control assembly retaining screws 4 Disconnect the optical control assembly from the wire harness To install the optical control assembly 1 Connect the optic
28. has to be regulated manually using the TEMP switchbutton When acolder temperature is desired changing the temperature setting to a higher number provides additional cooling by lengthening the cooling cycle For example if the temperature setting is set to 5 raising the setting to 6 will lengthen the cooling cycle Approximate Values Thermistor packed in ice bath When a warmer temperature is desired changing the temperature setting to a lower number shortens the cooling cycle For example if the temperature setting is set to 6 lowering the setting to 5 will shorten the cooling cycle N61X N81X Backup Operation When the N61X N81X controls shift to BOS operation the ON LED green flashes once every three seconds N62X N82XN64X N84X Backup Operation When the N62X N82XN64X N84X controls shift to BOS operation the temperature setting flashes for ten seconds when the TEMP button is pressed After ten seconds the selected operation mode indicator displays 20 N6XX N8XX Models www norcold com cda Refrigerator Service Manual n no co Fault Code No cooling detected by the controls Models and indicator displayed Alter alta ua a ON LED flashing WO 5 times every AC LP GAS j O GAS 3 seconds AUTO nale col E N61X N81X N62X N82X splay e NGAXINSAX Check for cooling at fin assembly 1 Check for ventilation obstructions and leveled operation Cooling 2 Reset powe
29. in Figure 27 page 36 Smooth black lead to black ice maker wire Ribbed black lead to white ice maker wire Ground wire REFRIGERATORS WITH ICE MAKERS 9 4 Ground wire REFRIGERATORS WITHOUT ICE MAKERS Figure 23 AC Power Cord Fan mounting screws Outer bracket and mounting screws Figure 24 Fan Mounted on Top of Absorber Coil 12 Vdc input to thermostatic switch Fan thermostatic switch 12 Vdc wire to fan connection Figure 25 Fan Thermostat Refrigerator Service Manual www norcold com cda N6XX N8XX Models 35 Fan thermostatic switch THERMOSTAT A Red Wire Wire Black offs Fan Ye d Fan Red Spliced Wire Black Spliced Wire POWER BOARD 1 amp 112 VDC RMGND in line fuse 12 Vdc connection 12 Vdc 12 Vdc 12 connection Figure 26 Fan with Wiring Arrangement for Field Figure 27 NORCOLD Fan Kit Wiring Pictorial Installed NORCOLD Fan Kit 36 N6XX N8XX Models www norcold com cda Refrigerator Service Manual COOLING UNIT Description The cooling unit is a self contained gravity flow absorption refrigeration system The refrigerant charge is a solution of water ammonia sodium hydroxide and sodium chromate a corrosion inhibitor Refrigeration is accomplished by applying heat energy and venting the heat extracted from the freezer and fresh food cabinet while maintaining the uni
30. long screws with washers 10 Attach the upper mounting brackets to the freezer plate two 1 2 inch screws Mold heater failed open See page 68 See pages 68 and 69 See page 68 See page 69 11 Tighten all screws firmly 12 Plug the AC cord in the RV AC power receptacle Bottom Mounting Screws 2 each Freezer Plate Screws 2 1 in long with washer Figure 50 Ice Maker Mounting Hardware Refrigerator Service Manual www norcold com cda N6XX N8XX Models 67 Cycle Test Cycle testing the ice maker will confirm if the mold heater energizes and motor complete a full cycle However if the ejector fingers are trapped in the ice allow the ice to partially thaw before cycle testing the ice maker To cycle test the ice maker 1 Shut off the water supply to the ice maker water valve 2 Remove the ice maker cover 3 Place the shut off arm in the ON position down 4 Make sure 120 VAC is available to the ice maker 5 Measure voltage across test points L and N See Figure 51 Voltage reading should be between 108 to 120 Vac If no voltage present check the continuity of the ice maker wire harness Shorting test points T and H will start the cycle Remove the jumper wire from test points T and H when a click sound is heard or immediately after 15 seconds of shorting terminals T and H A WARNING Burn hazard The mold heater will heat the bottom of the mold Handle or grasp the i
31. page 11 Check 12 Vdc connections Check fuse F1 5 amp in power board Check enclosure for air flow obstructions See page 17 F2 fuse in power board open Check fuse F2 30 amp in power board DC heater failed open See page 15 3 Way Units Only The refrigerator does not cool Ventilation obstructed Check enclosure for obstructed air flow efficiently on DC power DC voltage below 12 volts Check RV 12 Vdc power supply No LP gas Check LP gas supply and valves The refrigerator does not operate Incorrect electrode tip to burner gap See page 12 on LP gas Faulty spark sense electrode assembly See page 12 Flame sensing circuit failure See page 13 Ventilation obstructed Check enclosure for obstructed air flow The refrigerator does not Incorrect LP gas pressure See page 12 cool efficiently on LP gas Dirty burner See page 12 Missing flue baffle See page 30 Heat deflector blocked See page 30 Poor ventilation Check enclosure for obstructed air flow Off level operation See page 37 Dirty burner See page 31 Low AC voltage See page 34 Cooling fan inoperative See page 35 Improper installation See pages 22 26 Incorrect orifice See page 29 Nom S Refrigerator Service Manual www norcold com cda N6XX N8XX Models T N61X N81X DISPLAYED FAULT CODES Problem Probable Cause Refrigerator turned off ON LED off No 12 Vdc to refrigerator F1 fuse open ON LED and GAS LED flashing
32. was not installed correctly Incorrect installation lead to poor ventilation which in turn relates to poor cooling performance The unit s service and maintenance history should be considered when checking a cooling unit for poor cooling performance The service history and the scope of service work performed may lead directly to cause and resolution of a cooling problem The cooling unit has to reach normal operating temperatures before troubleshooting can take place It takes an average of four hours for the refrigerant to reach normal operating temperatures The time frame to reach operating temperatures depends on ambient air temperature Cooling System Monitoring The controls monitor cooling system performance when a heat source is active If the controls sense that the system is not cooling it displays a fault code n no co and locks out all heat energy sources First No Cooling Fault Occurrence Users can reset the controls by turning the refrigerator off then back on The user resetting option can only be accomplished when the controls record the first no cooling n no co fault occurrence The completion of a full cooling cycle will remove the recorded first n no co fault from memory and returns the controls to normal monitoring operation Two Recorded No Cooling Fault Occurrences If the controls detect two consecutive recorded no cooling faults the n no co fault code displays and the co
33. 0 VCA Voltage regulator Regulateur de tension Temperature sensor light assy Detector de temperature allume assy Water line heater Arroser le chauffage de ligne Thermostat Fan thermostat Ventilateur Ventilateur thermostat Units with serial number 851759 and higher 621829 RED ROUGE RED ROUGE Fan Ventilateur Fan thermostat Ventilateur thermostat BLK NOIR Fan Models Modeles Ventilateur IM Models Modeles IM BLK NOIR Heater Thermostat Chauffant ON OFF 1 MODE TEMP SET Switches ON ARRETT MODE REGULATEUR TEMP Commutateur n LEDs DELs Lr 34 7 1 jam 1 Alarme Microprocessor Microprocesseur Door switch Display board Porte commutateur Panneau de affichage N62X N82X N64X N84X N64X 3 N84X 3 Wiring Schematic Units with serial number 851759 and higher 48 NeXX N8XX Models www norcold com cda Refrigerator Service Manual H E NO N62X N82X N64X N84X N64X 3 N84X 3 Wiring Pictorial Units with serial number lower than 851759 N62X N82X Display overlay 12 Vdc connections N64X N84X Display overlay Gas valve N62X N82X Display circuit board AC heater N64X N84X Display circuit board Fuse 30 amp auto blade type 3 way models Divider heater DC heater 3 way models only Lamp Thermistor Fuse 3 amp for water line heater AC power cord Relay water line
34. 1 Wire Harness Connection Refrigerator Service Manual www norcold com cda N6XX N8XX Models 53 Modes of Operation All N62X and N82X are designed for 2 way operation AUTO Mode In AUTO mode AC power is the first heat energy source selected by the controls If AC power is not present the controls shift to LP gas propane the controls second priority heat energy source 1 Aknowledge both faults after the 30 seconds trial for ignition is over No AC Power and No Flame When AC power is not present and a flame is not sensed the controls AUTO AC Operation When AUT i ed 2 Shut power to the solenoid gas valve 1 Mode of operation is indicated by the AC LP GAS AUTOLED avro 3 Set gas lock out See NOTE 2 2 TheAC LED comes on as the AC peas 4 Provide a visual warning by flashing alternating A controls search for AC power avro no AC and F flame fault codes shown below availability See NOTE 3 gt 3 TheAC LED turns off when AC AC LP GAS AC L LP GAS power is selected by the controls AC LPGAS auro auro i ici i lt Mode operation is indicated by the AUTO Alternating A and F Codes AUTO LED See NOTE 1 5 Record and store the no AC and no flame faults in diagnostics nonvolatile memory fault history In AUTO mode pressing the MODE switchbutton momentarily displays the heat energy source in use
35. 1 4 inch self tapping hex head screws from the power board cover Remove the power board cover 10 Disconnect the AC heater wires from power board terminals AC Hl andAC_LO 11 Disconnect the wire harness connector from power board terminal P1 12 Remove two 1 4 hex head screws then remove the power board along with its base ELECTRONIC COMPONENTS N61X N81X Power board 5 A Fuse AC Heater Wire Harness 5 A Fuse AC Power F3 Terminals Connector P1 DC Power F1 N62X N82X Power board 5 A Fuse AC Heater AC Power F3 Terminals 5 A Fuse DC Power F1 Wire Harness Connector P1 N641 N841 2 Way Power board 5 A Fuse AC Heater AC Power F3 Terminals 5 A Fuse DC Power F1 Wire Harness Connector P1 N641 N841 3 Way Power board 5 Fuse AC Heater Wire Harness DC Heater 30 A Fuse 5 A Fuse AC Power Terminals Connector Terminals DC Power DC Power F3 P1 F1 F1 Figure 33 N6XX N8XX Power Boards Refrigerator Service Manual www norcold com cda N6XX N8XX Models 45 Installation Power Board 1 Seat the power board in the base 2 Attach the power board and base assembly to the refrigerator using two 1 4 in self tapping hex head screws Do not overtighten screws CRE Te 3 Connect the wire harness connector to the power S Wire Lead board terminal P1 way units only 4 Connect the AC heater wires to terminals AC HI andAC LO 5 Position and align th
36. 48 LP gas propane Operating pressure 10 5 to 11 5 in w c Heat output 1500 Btu h 11 in w c Orifice Gas ignition Automatic with flame sensing circuit Electrode tip to burner air gap 1 8 to 3 16 in N6XX N8XX Models www norcold com cda Refrigerator Service Manual N62X N82X Models Storage volume 52 7 8 in x 23 1 2 in x 24 in 59 7 8 in x 23 1 2in x 24 in Decorative panels dimensions Thickness Freezer door H x W both models Fresh food compartment door 31 5 8 in x 21 19 32 in 38 5 8 in x 21 19 32 in Electronic with built in diagnostic mode ON OFF MODE TEMP SET switches Flush push button Temperature settings 1 cold 9 coldest Temperature sensor Thermistor fin mounted 10 fin Off level operating limits Side to side 3 degrees maximum Front to back 6 degrees maximum DC power Controls operating voltage 10 5 to 15 4 Vdc Fuse control circuit F1 in power board 5 A tan color automotive blade type Fuse fan N6XXF N8XX F models with in line fuse 1 4 x 1 1 4 in AGC type fast acting DC amperage draws at nominal 12 Vdc Automatic ignition Divider heater Fresh food compartment lamp Gas valve Fan N6XX FN8XXF models only AC power AC heater operating voltage 108 to 132 Vac Fuse AC heater circuit F3 in power board 1 4 x 1 1 4 in AGC type fast acting AC heater rating Refrigerators with serial number lower than 854647 300 W 2 7 A 110 Vac resistance of 41 25
37. 4X Flame sense circuit failure Replace power board See page 44 dc LO Fault Code Low DC voltage Before beginning this procedure m Make sure RV DC voltage to refrigerator is 10 5 to 15 4 volts m Determine if the DC LO fault code displays when the converter is the source of DC power m Make sure no other appliance or lighting circuit is connected to the refrigerator DC circuit Models and fault indicator displayed Alternating 09101 N64X N84X Check for DC voltage input to power board terminals 12VDC and GND1 Voltage lower than 10 5 Vdc Check RV 12 Vdc power supply to refrigerator See NOTE below to determine and correct low dc LO fault Electronic controls operate on 12 Vdc When an AC DC converter is used to supply DC power the refrigerator circuit must be connected to the appliance output terminals of the converter filtered side If the refrigerator circuit is connected to the unfiltered side the AC ripple generated by the converter may cause a dc LO fault code to display To troubleshoot a dc LO fault connect a charged 12 volt automotive battery to the power board If the dc LO code clears the fault was caused by unfiltered DC power If the dc LO code does not clear replace the power board NORCOLD O Refrigerator Service Manual www norcold com cda N6XX N8XX Models 13 dc HI Fault Code DC voltage high Before beginning this procedure m
38. C heater failed open AC mode selected but not available 8 way models Press the button to bring up screen 5 MODE Screen Stored Fault History Screen 5 also displays stored fault history using lighted LED segments The illustration provides fault history information and assigned LED segments f a fault occurred its assigned fault history LED will be on Flame sense failure Thermistor failure DC relay stuck closed Screen 4 Number DC heater failed open AC voltage high AC voltage low 3 way models Press the a button to bring up screen 6 MODE Screen 5 Erase Fault History Screen 6 provides a way to erase fault history from memory To erase fault history 1 Press and hold the a button when F shows TEMP SET on the screen 2 Release the button when shows on the SET screen 3 Wait five seconds 4 Press and hold the button until show on the screen Press the 8 button to bring up screen 7 MODE 64 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Screen Power Board Inputs Screen 7 displays live power board inputs using lighted LED segments The illustration below provides live inputs information and assigned LED segments Ifa power board input is active or live its assigned input LED will be on Food comparment light Sensing burner flame is off and door is closed Thermis
39. Control Assembly N62X N82X Optical Control Assembly The optical control assembly communicates with the power board through a foamed in wire harness Drilling or puncturing the refrigerator rear panels may cause damage to the wire harness Controls and related features are shown in Figure 39 The optical control assembly with front box attached is shown in Figure 40 The optical control assembly connected to the wire harness is shown in Figure 41 Front Box Two tabs lock the front box to the optical control assembly A retaining screw on the hinge side retains the front box to the divider Shifting the refrigerator door swing requires shifting the front box to the selected hinge side Removal and Installation of Optical Control Assembly To remove the optical control assembly 1 Turn OFF the refrigerator 2 Remove the front box retaining screw then remove the front box 3 Remove the optical control assembly retaining Screws 4 Disconnectthe optical control assembly from the wire harness To install the optical control assembly 1 Connect the optical control assembly to the wire harness 2 Install the optical control assembly on the divider Do not overtighten the retaining screw 3 Reinstall the front box Do not overtighten the retaining screw 4 Turnon the refrigerator then check all of the optical control assembly functions Figure 40 N611 811 Optical Control Assembly With Front Box Figure 4
40. Cooling Unit Dispose of cooling unit according to local state and federal guidelines and regulations Dispose of any liquid waste or residue according to pre emergency planning and all applicable local state and federal regulations Do not under any circumstances release any waste or residue directly into sewers or surface waters If any liquid leaks or spills from the cooling unit contact the nearest environmental services for guidance 38 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Cooling System Diagnostic Flowchart A WARNING Do not bypass or modify the refrigerator s controls or components to diagnose the cooling system Do not wire the heater s direct The heater is supplied power through a fused circuit vanne Do not operate the refrigerator if the cooling unit is leaking or a leak is suspected Signs of leak s W Yellow residue inside or at the rear of the refrigerator W Ammonia smell YES Replace cooling unit Any signs of leak NO Ventilation as per installation instructions installation requirements ilati N YE Correct ventilation to meet S Check heat input Correct heat input device to meet specifications Check as required W AC heater voltage and amp draw DC heater voltage and amp draw 3 way units only Burner orifice flue deflector cap flue baffle W LP gas pressure Heat i
41. DC and DC Manual Mode operation maintain refrigeration only Yellow Wire Leads Figure 19 DC Heater When AUTO DC or DC Manual Mode does not maintain refrigeration and ventilation is correct Measure DC voltage input to the power board B Measure the heater s amp draw B If amp draw is notas specified measure the heater s resistance at ambient temperature The DC heater must be inserted into the heater tube until the stop bead makes full contact with the tube s rim See Figure 20 page 34 DC Heater Circuit Fuse A WARNING Never replace a fuse with a higher amp rated fuse Always use the specified fuse The DC heater circuit fuse is a standard 30 amp green automotive blade type fuse It is located on the power board terminal F2 Refrigerator Service Manual www norcold com cda N6XX N8XX Models 33 AC Power Requirements DC Heater warnae AC Heater Electric shock hazard The refrigerator is fed power from more than one source Unplug the AC cord from AC Heater Tube the RV AC receptacle before servicing electrical or electronic components DC Heater Tube AUTO AC and AC Manual Mode operation requires 108 to 132 Vac AC power must be supplied through a 2 pole 3 wire 20 amp grounding type receptacle AC Heater Canister Door Figure 20 AC and DC Heaters 3 way refrigerator A WARNING Lamp Assembly Do not wire the heater s direct Wiring heater s The operation of the fresh foo
42. Display controls start a 30 seconds trial for ignition 4 Not sensing a flame causes the controls to shift to Auto DC power The shift to DC power is not displayed See NOTE 1 5 The ONLED displays See NOTE 2 NOTE 1 The auto sequence described in steps 1 through 5 is repeated after the completion of each cooling cycle to enable the controls to select a higher priority heat energy source if available The control s priorities for selecting a heat energy source are First priority Second priority LP gas AC power Third priority DC power 3 way units only Pressing the MODE switchbutton will displays the AU and dc indicators AC Manual Mode In the AC Manual Mode AC power is the only heat energy source selected by the controls When the 1 The AC mode indicator AC displays as the controls start the search for AC power controls shift to AC Manual Mode 2 When AC power is selected the AC indicator turns off The ON LED displays See NOTE 3 NOTE 3 Pressing the MODE switchbutton displays the AC mode indicator No AC Power or Loss of AC Power If the controls do not sense the presence of AC power or when AC power is lost the controls 1 Display the no AC fault code Alternating Hi Display 2 Soundthe audible alarm The alarm is an intermittent beeping tone Pressing the mode switchbutton silences the alarm 3 Record and store the no AC
43. Make sure RV DC voltage to refrigerator is 10 5 to 15 4 volts m Determine if the DC HI fault code displays when the converter is the source of DC power Models and fault indicator displayed AC LP GAS Alternating dible AUTO si N62X N82X ey Display Me N64X N84X Check for DC voltage input to power board terminals 12VDC and GND1 Voltage higher than 15 4 Check RV DC power distribution to refrigerator See NOTE below to determine and correct low dc HI fault Electronic controls operate on 12 Vdc When an AC DC converter is used to supply DC power the refrigerator circuit must be connected to the appliance output terminals of the converter filtered side If the refrigerator circuit is connected to the unfiltered side the AC ripple generated by the converter may cause a dc HI fault code to display To troubleshoot a dc HI fault connect a charged 12 volt automotive battery to the power board If the dc HI code clears the fault was caused by unfiltered DC power If the dc HI code does not clear replace the power board dc rE Fault Code DC relay stuck closed Models and fault indicator displayed Alternating A Ti Display N64X N84X DC relay stuck closed 14 N6XX N8XX Models www norcold com cda Refrigerator Service Manual dc HE Fault Code DC heater failed open Before beginning this procedure make sure The RV DC electrical system is maintai
44. Manual Mode always check the burner flame appearance first Most faults on LP gas operation related to a dirty burner The diagnostic flowchart on page 12 of this manual provides information to troubleshoot the no flame faults Poor or No Cooling on DC Mode 3 Way Models A WARNING Do not work on live circuits Turn off AC power and DC power before attempting to remove service or repair any of the refrigerator s electrical or electronic circuits or components When troubleshooting poor or no cooling in AUTO DC or DC Manual Mode always check DC voltage input to the power board voltage output to the heater and heater amperage draw If DC voltage input to the refrigerator is lower than 12 Vdc the problem is usually related to the DC power supply source The RV DC power supply source may not be supplying the correct voltage to the power board The diagnostic flowcharts on pages 13 14 and 15 of this manual provide information to troubleshoot DC power faults A WARNING Do not operate the refrigerator if the cooling unit is leaking or leakage is suspected Refrigerant Leakage Yellow powder or liquid deposits at the rear of the refrigerator or ammonia smell inside the refrigerator indicate refrigerant leakage Exercise extreme care when handling a leaking or a suspected leaking cooling unit The cooling system refrigerant solution consists of water ammonia sodium hydroxide and sodium chromate Disposal of
45. NORCOLD Service Manual 2003 THETFORD NORCOLD All rights reserved Gas Electric Refrigerators NC 00 ope pum Coo 7 wem 007 A WARNING DO NOT install this refrigerator in below deck marine applications Do not install this refrigerator in fixed indoor cabin or other dwelling applications This refrigerator must use only NORCOLD designed and approved outside air in take and exhaust ventilation for correct and safe operation Any other ventila tion could cause lethal combustion exhaust fumes and or explosive propane gas fumes to be in the living area and or below deck Publication No 619394E 01 28 04 TABLE OF CONTENTS Introduction 1 OMIC Reed nine 29 About this Manual ccccccccccccccccecceccececceccusecceceucuceucuececeevens 1 BUMET 29 Model Identification 1 Burner Tube 29 Information Label cvccdccccvcccceccccveccdcsosscvecececcucevtececesecc cerdecccouees 1 gs ce 30 Cooling Unit Serial Number 1 Feat Deflector nacer stetit 30 Certification and Code Requirements 1 Flie Battle asser mines 30 About Installation MEME M MU ER MEI Appearance 30 Replacement Par
46. O AC or LP Manual Mode or DC Manual Mode 3 way models only Two 7 Segmet LED Display Show Operation mode AUTO AC LP and DC 3 way models only gt Fault codes and diagnostic information gt Temperature setting Release when desired mode displays Figure 42 N64X N84X Optical Control Assembly N64X N84X Optical Control Assembly The optical control assembly communicates with the power board through a foamed in wire harness Drilling or puncturing the refrigerator rear panels may cause damage to the wire harness Controls and related features are shown in Figure 42 The optical control assembly with front box attached is shown in Figure 43 The optical control assembly connected to the wire harness is shown in Figure 44 Front Box Two tabs lock the front box to the optical control assembly A retaining screw on the hinge side retains the front box to the divider Shifting the refrigerator door swing requires shifting the front box to the selected hinge side Removal and Installation of Optical Control Assembly To remove the optical control assembly 1 Turn off the refrigerator 2 Remove the front box retaining screw then remove the front box 3 Remove the optical control assembly retaining screws 4 Disconnect the optical control assembly from the wire harness To install the optical control assembly 1 Connect the optical control assembly to the wire harness 2 Install the optical contro
47. Troubleshooting a F no FL 55 N64X N84X Optical Control Assembly 56 Front BOX iine et t re 56 Removal and Installation of Optical Control Assembly 56 Modes of Operation 57 Di opm EE C m 57 AUTO AC Operation 9 57 AUTO LP Operation 29 5 7 sss 57 Shift from AUTO LP GAS to AUTO 57 No AC Power and No Flame 57 Shift from AUTO LP GAS to AUTO 57 Troubleshooting No Flame and No AC Faults 57 AUTO DC Operation 3 Way Units Only 58 AC Manual Mode Lf Ay eene 58 No AC Power or Loss of AC 58 AC Power Restored ceccceeeeeneeeeeeeeneeseeeeeeeeseaeeeeeeeneeens 58 Troubleshooting no AC 58 LP Marn ralaMOgle em 59 Flame Fails to Ignite or Flame Goes Out 59 DC Magual Mode 45 59 No DC Power to DC Heater Circuit 59 Diagnostic Mode Models N62X N82X 60 Diagnostic MOC 7 60 Accessing the Diagnostic Mode 60 5
48. agnostic functions are managed and controlled by the power board Inputs outputs monitoring information and diagnostic functions are communicated through the optical control assembly The wire harness interfacing the power board with the optical control assembly is foamed into the cabinet Wiring pictorials and schematics can be found on page 46 47 and 48 Power Board The power board is seated on an insulated base to prevent the printed circuit from making contact the refrigerator s cabinet metal plate Power boards seated in bases are shown in Figure 33 Two self tapping 1 4 inch hex head screws hold the power board and base in place The power board cover is held by three self tapping 1 4 inch hex head screws The power board cover and external connections are shown in Figure 34 Removal Power Board 1 Turn OFF refrigerator 2 TurnOFF RV DC power to the refrigerator 3 Disconnect DC power supply wires from power board terminals 12 VDC and 12 VGND1 3 way refrigerators AC LP DC Disconnect the DC heater wires from terminal FLP DC HEAT and DC_HT GND 4 Unplug the AC power cord from the RV AC receptacle 5 Unplug the AC cord from the power board 6 Disconnect the gas valve wires from power board terminals GV and GV_GND 7 Disconnect the spark sense electrode wire N64XIM N84XIM ice maker Loosen the water valve bracket then move the bracket water valve assembly out of the way 8 Remove the three
49. ailed open See page 18 Fresh food compartment door open more then 2 minutes Lamp reed relay switch faulty See page 19 Temp Back up operating system See page 20 Setting No cooling detected by the controls See pages 21 amp 37 Nom S Refrigerator Service Manual www norcold com cda N6XX N8XX Models 9 N64X N84X DISPLAYED FAULT CODES Code Probable Cause Blank Refrigerator turned off Display No 12 Vdc to refrigerator Screen F1 fuse open EISE Inal ollEL 23 The burner failed to ignite or reignite Display T bc Kk __ Flame sense circuit failure Alar pxernating DC voltage low LIL pL LI Display Alternating audible dc rE 10 rl DC relay stuck closed 3 way models only Display Alternating DC voltage high Display alternating audible HEI D AN DC heater failure 3 way models only Ide llHE JH PMI No AC power available to refrigerator HE cord not plugged into power board no Ci Pur fuse open JIH Alternating me IHE IEE 0 AC relay stuck closed JU larm BL IET AC voltage low JL AT AC voltage high LJ Ll Disp a air Audible IHLIIHE E E AC heater failed open Display udible Alain B S Fresh food compartment door open more than 2 minutes Lamp reed relay switch faulty Flashing Temp Back up operating system Setting gt No cooling detected by the
50. aker if the mold heater resistance is not within 71 and 79 O Checking Voltage at Motor Terminals Make sure AC power is available to the ice maker before taking voltage readings across test points N and M To contact test points N and M the test probes must be at least 1 2 inch long Figure 57 shows the multimeter connections to points N and M to measure voltage The voltage across points L and M should be 108 to 132 Vac If no voltage is detected make sure replace the ice maker Winterizing the Ice Maker Water To winterize the ice maker Shut off the RV water supply to the ice maker Lower the ice maker shut off arm to the off position Co nm Disconnect the garden hose adapter from the water valve 4 Disconnect the ice maker water supply line from the water valve Do not unwrap the water line heater wire from the water valve outlet connection OT Allow the water to drain from the RV water supply line and the ice maker water line Protect connections by bagging and taping RV water supply connection the ice maker water line connection and the water valve connections f DISCONNECT POWER TO REMOVE MODULE 185W 115V 60 HZ IM S 106 626649 iar Shut Off Arm ON position Figure 56 Measuring mold heater resistance across test points L and H f DISCONNECT POWER REMOVE MODULE 185W 115V 00 HZ IM S 106 626649 am I Shut Off Arm ON position
51. al Mode is selected 1 Modeofoperation is indicated by AC LP GAS the LP LED AUTO 2 The LP GAS LED stays on as the LP GAS Manual Mode is selected Flame Fails to Ignite or Flame Goes Out If a flame does not ignite or the flame goes out the controls 1 Set gas lock out and shut off power to the solenoid gas valve 2 Provide a visual warning by flashing ac cns the no flame fault code AUTO 3 Record and store the no flame fault in diagnostics nonvolatile memory fault history Clearing Gas Lock Out Gas lock out can be cleared by turning the refrigerator OFF and back ON Troubleshooting a F no FL Fault Use the following references to identify troubleshoot and correct an ignition failure fault Page 16 F no FL fault codes troubleshooting flowchart Page 62 Diagnostic Mode N62X N82X Mode Screen 4 Refrigerator Service Manual www norcold com cda N6XX N8XX Models 55 TEMP SET Switch gt Press momentarily to view temperature setting Press and hold to select a temperature setting gt Settings 1 cold 9 coldest Power Switch Press momentarily to turn ON refrigerator Press and release after three seconds to turn OFF refrigerator MODE Switch gt Press momentarily to display operating mode Press and hold to select AUT
52. al control assembly to the wire harness 2 Install the optical control assembly on the divider Do not overtighten the retaining screws 3 Reinstall the front box Do not overtighten the retaining screw 4 Turnon the refrigerator then check all of the optical control assembly functions Figure 37 N61X 81X Optical Control Assembly With Front Box Figure 38 Wire Harness Connection NORO UD am Refrigerator Service Manual www norcold com cda N6XX N8XX Models 51 Modes of Operation AUTO Mode InAUTO mode the controls automatically search for AC power first If AC power is present the controls automatically select AC operation The selection of AC power is indicated by the ON LED No AC Power If AC power is not present or is interrupted the controls automatically switch to LP gas operation When the controls switch to LP gas operation the GAS LED illuminates and a 30 second trial for ignition period starts Both ON LED and GAS LED will remain illuminated The ON LED indicates the refrigerator is turned ON The GAS LED indicates the controls selected LP gas because AC power is not available AC Power Restored If AC power is restored the controls automatically revert operation to AUTO AC and the GAS LED turns off The ON LED will remain illuminated to indicate AUTO AC operation No AC and No Flame If AC power is not present and a flame is not sensed after the controls switch to LP gas the fla
53. at one second In AUTO operation intervals No AC power or LP gas available GAS operation Burner failed to ignite or reignite ON LED on Gas lock out GAS LED flashes at one second intervals Burner failed to ignite or reignite ON LED flashes once every three seconds Back up system operation JU Mode switch failure Refrigerator ON LED flashes twice every three seconds M operating in last selected mode ON LED flashes three times every three seconds AC heater failure ON LED flashes four times every three seconds Controls failure ON LED flashes five times every three seconds No cooling detected by the controls Reference See page 11 See page 16 See page 12 See page 12 See page 20 Replace optical control assembly See page 18 Replace power board See pages 21 amp 37 8 N6XX N8XX Models www norcold com cda Refrigerator Service Manual N62X N82X DISPLAYED FAULT CODES Code Probable Cause Reference Refrigerator turned off No 12 Vdc to refrigerator See page 11 F1 fuse open Display Screen Flame sense circuit failure See page 13 F Hk Burner failed to ignite or reignite See page 12 C H DC voltage low See page 13 EHk DC voltage high See page 14 H AC relay stuck closed See page 16 No AC power available to refrigerator AC cord not plugged into power board See page 16 F3 fuse open AC heater f
54. ation of the refrigerant through the cooling unit is accomplished by gravity flow therefore the refrigerator must be operated leveled Off level operation affects the flow of the refrigerant through the cooling system The maximum off level operation limits are 3degrees from side to side 6degrees from front to back Exceeding the maximum off level limits can permanently damage the cooling unit The cooling unit or its performance are not affected when the vehicle is in motion Gradual Decrease in Cooling Efficiency A gradual decrease in cooling efficiency is not a clear indication of cooling system failure Other factors that affect cooling efficiency include ventilation the heat input off level operation lack of service and maintenance inadequate repairs or unauthorized field modifications If any of these factors exist and are not corrected a replacement cooling unit will also perform inefficiently or fail Step by step troubleshooting is the best approach when dealing with a gradual decrease in cooling It is important to consider is that though not efficiently the cooling unit is working Troubleshooting should always begin by checking ventilation then thoroughly checking the cooling unit and heat sources In the majority of reported case the problem has been related to the installation which in turn hindered cooling unit ventilation Additionally ambient air temperature plays a significant role if the unit
55. automatically attempting to reignite the burner after the controls have detected an ignition failure Gas lock out may be caused by any or a combination of the following B No LP gas available empty LP gas tank B Incorrect LP gas pressure LP gas pressure must be 10 5to 11 5 inches water column Dirty burner Clogged damaged or the wrong orifice Incorrect electrode to burner air gap A damaged or grounded spark sense electrode assembly Damaged or inoperable gas valve To manually clear Gas Lock Out W Turn OFF the refrigerator Correct the no flame fault Select AUTO or GAS operation 52 N6XX N8XX Models www norcold com cda Refrigerator Service Manual TEMP SET Switch Press momentarily to view temperature setting gt Press and hold to select desired temperature setting gt Settings 1 cold 9 coldest Power Switch Press momentarily to turn ON refrigerator gt Press and release after three seconds to turn OFF refrigerator Z NORCOLD AC OO HNJ QR 7 Segmet LED Display Shows gt Normal operation on AUTO and LP GAS Fault codes set by the control system Temperature setting gt Diagnostic information MODE Switch gt Press momentarily to display operating mode gt Press and hold fo select AUTO AC Manual or LP Manual mode Release when desired mode displays Figure 39 N62X N82X Optical
56. automotive blade type Fuse fan N6XXFw N8XX F models with in line fuse holder 1A 1 4 x 1 1 4 in AGC type fast acting DC amp draws at nominal 12 Vdc Automatic ignition DC heater Divider heater Fresh food compartment lamp Gas valve Fan N6XX FN8XXF models only AC power AC heater operating voltage requirements 108 to 132 Vac Fuse AC heater circuit F3 in power board 4in x 1 1 4 in AGC type fast acting AC heater rating Refrigerators with serial number lower than 854647 300 W 2 7 A 110 Vac resistance of 41 25 Q Refrigerators with serial number 854647 and higher 300 W 2 5 A 120 Vac resistance of 48 Q LP gas propane Operating pressure Heat input Orifice new style Orifice old style 0 155 jeweled Gas ignition Automatic with flame sensing circuit Electrode tip to burner air gap 1 8 to 3 16 in N6XX N8XX Models www norcold com cda Refrigerator Service Manual TROUBLESHOOTING QUICK REFERENCE GUIDE Problem Possible Cause Checks Reference No 12 Vdc power to refrigerator Faulty loose 12 Vdc connections F1 fuse in power board open The refrigerator does not cool on No AC power to refrigerator See page 16 AC bower F3 fuse in the power board open Check fuse F3 5 amp in power board P AC heater failed open See page 18 The refrigerator does not cool Ventilation obstructed efficiently on AC power AC voltage low 3 Way Units Only The refrigerator does not cool on DC power See
57. c if N61X N81X s EE Ka XO N62X N82X N64X N84X N64X 3 N84X 3 NORCOLD CUSTOMER SERVICE NORCOLD Telephone 1 800 444 7210 P O Box 4248 937 497 3183 Sidney OH 45365 4248 World Wide Web www norcold com cda This Manual is Compliments of Northwest RV Supply 86325 College View Road Eugene OR 97405 Local 541 746 9092 Toll Free 866 678 7467 Fax 541 736 5573 http www nwrvsupply com mail nwrvsupply com Northwest RV Supply carries a large spectrum of surplus used and new RV parts and components Please feel free to visit our website for additional information
58. ce maker by its sides when performing a cycle test 6 Short terminals T and H An insulated jumper wire 14 AWG with 1 2 inch stripped ends is recommended See Figure 52 The following events should take place during the cycle a The mold heater begins to heat the mold b The ice maker ejector starts to cycle About 15 seconds into the cycle the thermostat produces a click sound Remove the jumper wire immediately after hearing the click sound or 15 seconds after shorting terminals T and H Failing remove to the jumper wire will cause damage to the heater and or overheat the mold which will ruin the ice maker d Asthe ejector fingers reach the 12 o clock position the water valve energizes 6 If the water valve does not remain energized between 3 5 and 7 5 seconds see Water Fill Adjustment page 70 f DISCONNECT POWER A 185W 115V 60 HZ IM S 106 626649 Shut Off Arm ON position 108 to 120 Vac 185W 115V 60 HZ IM S 106 626649 Insulated Jumper Wire 14 AWG with 1 2 stripped ends Figure 52 Test points T and H DISCONNECT POWER TO REMOVE MODULE 185W 115V 60 HZ IM 5 106 626649 nam Water fill adjustment alignment indicator Water fill adjustment screw Figure 53 Water Fill Adjustment Screw and Indicator 68 N6exX N8XX Models www norcold com cda Refrigerator Service Manual Water Fill Ad
59. controls I Reference l See page 11 l See page 12 l See page 13 l See page 13 l See page 14 See page 14 See page 15 See page 16 See page 16 See page 17 See page 17 See page 18 See page 19 See page 20 See pages 21 amp 37 10 wexx N8XX Models www norcold com cda Refrigerator Service Manual TROUBLESHOOTING FLOWCHARTS Blank Display Refrigerator does not turn on Before beginning this procedure make sure m The RV DC power system is supplying 10 5 to 15 4 volts to the refrigerator m No other RV appliances or lighting circuits are connected to the refrigerator DC circuit m 12 Vdc input to the power board is wired according to the N6XX N8XX installation manual Models and fault indicator displayed W ON AC Blank LP GAS Blank Display Display xX GAS check if flashing AUTO Screen Screen N61X N81X N62X N82X N64X N84X Measure voltage at power board 12VDC and GND1 connections 10 5 NO to 1 No DC power input from RV to unit 15 4 Vdc 2 Faulty wiring or connectors YES Check condition of F1 fuse NO Replace fuse Use a standard 5 amp in power board See Figure A tan color automotive blade type fuse YES Measure voltage at optical control harness Voltage present NO Replace power board Replace optical control board See Figure B YES Good 00 0 Q Checking DC fuse con
60. d AC cord connection Fault related to RV AC power distribution component or circuit supplying AC power to refrigerator Replace power board NOROCOYD an hw Refrigerator Service Manual www norcold com cda N6XX N8XX Models 17 Bb Voltage higher than 132 Vac H AC HE Fault Code AC heater failed open Before beginning this procedure make sure m RV AC voltage to the refrigerator is 108 to 132 volts m No other appliance or lighting circuit is connected to the refrigerator AC circuit Models and indicator displayed Ar IHE ap pec Flashing 3 times every 3 seconds AC LP GAS MSN D GAS A U TO a N61X N81X N62X N82X AL HE ln N64X N84X Check AC heater wires for loose or damaged connector Heater connections okay Repair or replace connectors If connectors cannot be repaired replace heater Check AC heater resistance Resistance See See Figure 38 to 53 Q Replace AC heater Replace power board AC heater resistance 38 to 53 Q 18 N6XX N8XX Models www norcold com cda Refrigerator Service Manual d dr Fault Code Door open for more than 2 minutes Before beginning this procedure make sure m Light thermistor connector and wire harness connector are fully engaged and locked Models and fault indicator displayed AC LAP GAS AUTO N62X N82X Check that the door latch striker plate is adjusted correctly St
61. d compartment 12 Vdc direct bypasses control safety devices and creates lamp is controlled by a magnet activated reed relay the potential for an electrical fire switch The switch is in the optical control circuit board and the magnet is permanently mounted on the underside of the door s top trim piece The AC heater see Figure 22 is a cartridge type heater Refrigerators with serial number lower than Leaving the door ajar or open for more than two 854647 heater is rated for 300 Watts 2 7 amps 110 minutes causes the controls to display a d or dr Vac and has a resistance of 41 25 ohms Refrigerators fault code depending on unit model Closing the door with serial number 854647 and higher heater is rated turns off the light and clear the d or dr fault for 300 Watts 2 5 amps 120 Vac Heater indicator from the display However the fault code will resistance is 48 ohms be stored in the diagnostic mode nonvolatile memory For d dr troubleshooting procedures See page 19 As shown in Figure 21 the light assembly harness and thermistor share the same connector Remove the light cover to access the connector Stop Bead Connector Light bracket os Lightbulb Black Wire Leads Light cover N641 N841 Figure 22 AC Heater When poor or no cooling in AUTO AC or AC Manual Mode operation is present Thermistor 1 Measure AC voltage input to the power board 2 Measure heater amp draw 5 3 If amp draw
62. dewall Venting The general guidelines for intake vents and roof exhaust vents presented in this section do not replace the instructions and or guidelines provided in the N6XX N8XX model refrigerator installation manual and the Ventilation Guidelines For Gas Electric Refrigerators part number 622090A 3 01 Refer to the N6XX N8XX installation manual and Ventilation Guidelines For Gas Electric Refrigerators for the latest information on approved vents installation instructions and special construction exceptions With increased installation of refrigerators in RV slide outs NORCOLD has conducted extensive testing to develop venting guidelines for double sidewall vent applications This work was done to ensure NORCOLD refrigerators meet the ANSI 721 19 standards for cooling performance when used in slide out applications The challenge with slide out installations is that the chimney effect that is present with roof vent installations is not as strong in slide outs To improve the chimney effect side vent installations must have fans and baffles These fans and baffles direct the air flow through the surfaces of heat rejecting components NORCOLD has determined that the following three key design considerations optimize heat removal in slide out applications W Refrigerators installed in slide outs must have a fan or fans to assist air flow Fan kits and refrigerators with factory installed fan s are available from NORCOLD W
63. e 10 5 toe 100 VATS RC mov 11227185 0 66 2 50 300 8 7 Um Pre Gu i NBe1 Fema 08 12 14 TH Ww UM ware 2 Figure 1 Refrigerator Information Label Location 1167359 NORCOLD Figure 2 Cooling Unit Bar Code Label Location 2 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Safety Notice It is not possible to anticipate all of the conceivable ways or conditions under which the refrigerator may be serviced or to provide cautions as to all of the possible hazards that may result Standard and accepted safety precautions and equipment should be used when working on electrical circuits and handling toxic or flammable materials Safety goggles and other required protection should be used during any process that can cause material removal such as when removing a leaking cooling unit and cleaning components Attention Statements The safety alert symbol followed by the word WARNING or CAUTION identifies potential safety hazards or conditions SAFETY AWARENESS The safety alert symbol with the appropriate heading appear on all safety labels posted on the refrigerator and safety awareness notices presented throughout this manual A WARNING The above heading identifies hazards or conditions which if ignored can cause serious injury death and or extensive property damage A CAUTION The above heading identifies hazards which if
64. e Diagnostic Mode is active A few seconds after the number displays all LED segments light See illustration If the LED segments do not match the illustration the fault is in the optical control display Replacing the optical control assembly should resolve this fault Press the button to bring up screen 2 Screen LED Segments Reliability Check Screen 2 continues to confirm the reliability of the display The screen should go completely blank after the screen number is displayed If an LED segment displays the fault is in the optical control assembly Replacing the optical control assembly should resolve this fault Press the button to bring up screen 3 Screen 3 Thermistor Fin Temperature Screen 3 shows the actual fin temperature being sensed by the thermistor This is not the fresh food cabinet air temperature The illustration shows 30 F fin temperature as displayed in screen 3 2 S 4 4 f ee n dm a N _ o 2 Seconds y Second 30 F Ll Screen Number P Screen 2 second pause M Press the button to bring up screen 4 Screen Stored Fault History Screen 4 displays stored fault history using lighted LED segments The illustration provides fault history information and assigned LED segments f a fault occurred its assigned LED will light Ignition fault
65. e optical control display replace the optical control display assembly Nom Refrigerator Service Manual www norcold com cda N6XX N8XX Models 19 Thermistor Failure Fault Controls in backup operating system mode Before beginning this procedure m Make sure lamp thermistor assembly is connected to wire harness Models and fault indicator displayed ee D ON Flashing once every 3 seconds i GAS N61X N81X 4 N62X N82X Check lamp thermistor wire assembly and connector for dirty broken connections Wires and connector good YES AC LP GAS AUTO Flashing ZEE N Clean repair terminals or connector as required See Figure A Check thermistor resistance See Figure B and procedure below d Temp Setting T N64X N84X Temperature Resistance E F kQ 85 8 1 9 0 amp 80 9 1 10 0 Connection p vd 75 10 1 11 0 70 11 1 12 0 60 12 1 13 0 Thermistor 50 15 5 16 5 Connections 40 22 5 23 5 35 24 5 25 5 33 28 5 29 5 32 30 0 32 0 Thermistor Figure A Figure B Backup Operating System BOS The backup operating system BOS is an electronically controlled duty cycle that maintains the refrigerator in operation if the thermistor is disconnected or fails The BOS maintains cooling by timing the length of time the heat source is energized When the refrigerator is operating in BOS the length of the cooling cycle
66. e power board cover over the power board Attach the cover using three 1 4 in self tapping hex head screws Do not overtighten screws 6 Connectthe solenoid gas valve wires to terminal AC AC Heater Solenoid Gas Valve Spark Sense GV and GV GND Power Cord Wire Leads Wire Leads Electrode Assembly Wire Lead 7 Connect the spark sense electrode wire to the power board high tension terminal Figure 34 Power Board 3 Way with Cover 3 way refrigerators AC LP DC Connect the DC heater wires to power board terminals FLP DC HEAT and DC_HT GND 8 Connect the AC power cord to the power board and plug the AC power cord into the RV AC Mie oe IM receptacle NORCOLD 9 Connect positive and the negative DC power wire x check f flashing leads to the power board Positive wire to terminal 12VDC B Negative wire to terminal 12_VGND1 N61X N81X Optical Control Assembly N64XIM N84XIM ice maker Reinstall the water valve and bracket assembly 10 Turn ON the RV DC power to the refrigerator WE on GISI 11 Plug the AC power cord into the refrigerator receptacle 12 Turn ON refrigerator then check all power board control functions before placing in service N62X N82X Optical Control Assembly Optical Control Assembly The optical control assembly is attached to the cabinet divider with two pan head Phillips screws Optical control assembly removal and installation instructions accordi
67. e side wall exhaust vent provides clear access to service the flue or any of its components Aone inch diameter loop handle twisted wire brush with a 27 inch wire handle is recommended for sweeping clean the flue Heat Deflector The heat deflector see Figure 14 deflects hot exhaust gases to the sides It also keeps dirt and debris from getting into the flue Cooling performance may be affected if the heat deflector is not installed or is not installed correctly Spiral Baffle The spiral baffle see Figure 14 traps and transfers heat to the cooling unit generator A retaining wire suspends the spiral baffle in the flue just above the flame See Figure 15 The spiral baffle should be checked annually To remove the spiral baffle from the flue 1 Remove the heat deflector 2 Unclip the baffle retaining wire from the rim of the flue 3 Pull the baffle out of the flue tube A CAUTION Do not cut or modify the spiral baffle retaining wire The wire positions the baffle for optimal heat transfer Flame Appearance The flame should be light blue with sharp blue root cones and a steady burning flame plume See Figure 16 A flame that is mostly orange or yellow is erratic and unstable indicates a dirty burner Burner cleaning procedures appear on page 30 Heat deflector Flue Baffle retaining wire Baffle Burner box Figure 14 Flue and Component
68. ecifications Cycle Se One revolution eject and water fill Water fill capacity 4 7 fl oz 140 mL Ice yield amp 8 3 5 lbs 24 hrs approximate Cycle duration 3 5 to 7 minutes bier E E 120Vac Amp draw Cycle on heater on 1 6A Cycle on heater off 0 3A Gycle off amp draw MOOr EET 9 ie 1 5 W 8800 Q Mold Heater nn 185 W 72 O Pen U 7 N Black L N White Brown V Green Ground M 7 M Thermal Fuse P Wire Harness Vac AN Heater Water Line Wire Leads Heat M gt Water Valve Assembly with water line heater Figure 49 Ice Maker 6 N6XX N8XX Models Errata Sheet 01 16 04 www norcold com cda Refrigerator Service Manual Problem B No in mold no ice yield W Ice in mold no ice yield Ice Maker Troubleshooting Chart Probable Cause No AC power to ice maker No water available to ice maker Water valve strainer clogged Water valve failure NoAC power available Remedy A Check AC power supply B Check water supply to ice maker water C
69. er Valve Operation Test Test water valve operation by shorting points V and L using an insulated jumper wire See Figure 54 Shorting points V and L energizes the valve s solenoid When energized the solenoid will make an audible click and continuous buzzing sound until the jumper wire is removed Water Valve Solenoid Resistance Always disconnect the ice maker AC power cord before taking resistance readings on the water valve solenoid To contact test points V and N the resistance meter s probes must be at least 1 2 inch long See Figure 55 Resistance values 295 to 360 Q check for loose wire harness connections at the water valve or an open solenoid coil W 00 0 Q indicates a short between the ice maker and the water valve Insulated jumper wire 14 AWG with 1 2 stripped ends Figure 54 Energizing water valve through test points V and L f DISCONNECT POWER REMOVE MODULE 185W 115V 60 HZ IM S 106 626649 sum Figure 55 Measuring water valve solenoid resistance across points V and N Refrigerator Service Manual www norcold com cda N6XX N8XX Models 69 Mold Heater Resistance Check Unplug the ice maker AC power cord before taking any resistance readings on the ice maker To contact test points L and H the test probes must be at least 1 2 inch long Connect the multimeter s probes as shown in Figure 56 W Resistance values 71 to 79 B Replace the ice m
70. fault in diagnostics nonvolatile memory fault history AC Power Restored When AC power is restored the controls 1 Automatically restore AC Manual Mode operation however the recorded fault history will not be erased from memory 2 Silencethe alarm and clear then no AC fault code from the display Troubleshooting no AC Fault Use the following references to identify troubleshoot and correct a no AC fault B Page 16 A no AC fault codes troubleshooting flowchart B Page 62 Diagnostic Mode N62X N82X Model Screen 4 58 N6XX N8XX Models www norcold com cda Refrigerator Service Manual LP Manual Mode DC Manual Mode In the LP Manual Mode LP gas is the only heat The DC Manual Mode is the only heat energy source energy source selected by the controls When the aknowledged and selected by the controls When the controls shift to LP Manual mode controls shift to DC Manual mode 1 The LP mode indicator LP displays 1 DC mode indicator de displays as and the controls start a 30 seconds L H the controls start the seach for DC tl trial for ignition power L 2 The LP mode indicator turns off when the 4 2 The de mode indicator turns off when the controls sense a flame The ON LED controls shift to DC power The ON LED displays See NOTE below e displays See NOTE below e NOTE 4 NOTE 6 Pressing the MODE switchbutton displays the
71. gnostic Mode inputs outputs and fault history Each screen is identified by a number which shows in the optical control assembly display See Figure 45 y recess Rold borkithe ann buttons at the same time 2 Release the and as soon as The N62X N82X optical control display uses a single 7 segment LED module to display diagnostic screen displays information Information made up of two letter or numbers display in an alternating sequence Fault 3 A few seconds later H displays history information live inputs and outputs are presented using lighted LED segments The diagnostic LED segments if present displays after Changing Screens the screen number turns off Diagnostic LED segments identification numbers See Figure 46 To change screens Press the button until the next screen displays Exiting the Diagnostic Mode To exit the Diagnostic Mode guns nn 1 Press and hold the and buttons at the same time Gap 2 Release the buttons as soon as the LED segment that represents the selected operation mode appears on the display AUTO e AC or LP GAS Turning the refrigerator OFF then back ON also exits Figure 46 Diagnostic LEDs Segments Identification the Diagnostic Mode 60 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Errata Sheet 01 16 04 Screens and Diagnostic Segments Information Screen Diagnostic Mode Active Screen 1 confirms that th
72. hamber to support ignition and the combustion of propane gas Primary combustion air flows into the burner through three circular openings Any obstruction blocking any of the three openings will have an effect on the fuel air mixture Insufficient combustion air will cause carbon deposits to clog the burner slots Carbon clogged burner slots along with heavy dirt deposits in the burner are the main cause of no cooling or poor cooling performance when the refrigerator is operating in LP gas mode Burner Tube The burner tube is 1 4 inch OD aluminum tubing with an anti vibration loop and a double flare at each end See Figure 13 WE 0 155 Jeweled orifice assembly Mi Cap type LP16 orifice assembly Figure 11 0 155 and LP16 orifice assemblies 5 a p Figure 12 Burner Burner connection C Gas valve connection Figure 13 Burner tube Refrigerator Service Manual www norcold com cda N6XX N8XX Models 29 Flue The flue on all NOXX N8XX terminates a few inches above the canister See Figure 14 The flue comes equipped with a removable baffle spiral baffle and a metal heat deflector The flue and its components should be checked annually In roof exhaust venting applications the refrigerator must be removed from the enclosure to check or service the flue or any of its components In most sidewall exhaust venting applications removal of th
73. heater Fuse 5 amp AGC type Water line heater Fuse 5 amp standard auto type Thermostat water line heater 20 96000 9 Spark sense electrode wire assembly Nom Refrigerator Service Manual www norcold com cda N6XX N8XX Models 49 12V GND1 DC HT GND lev np YELIJAUNE amp 3 DC HEATER YEL JAUNE WHT BLK BLANC NR 11 D i IRED WHT RGE BLANC IBLK WHT NR BLANC IWHT RED BLANC RGE 1 BLK NOIR BLU BLEU GRN VERT WHT VIO BLANC VIO Lois K2 ACHTHM BLK NOIR AC HT LO1 BLK NOIR 12 exe N62X N82X N64X N84X N64X 3 N84X 3 Wiring Schematic Units with serial number Power board 12 Vdc connection Gas valve 12 Vdc connection Thermistor Light fresh food compartment Divider heater On OFF switch Voltage regulator 66006600 Mode switch lower than 851759 TEMP SET switch Door switch Microprocessor Alarm N64X N84X units only 7 segment LED N64X N84X units LED 120 Vac connection AC heater DC heater 3 way units only Heater ice maker water line Thermostat ice maker water line 50 n6xX N8XX Models www norcold com cda Refrigerator Service Manual ON LED Green LED indicates the refrigerator is ON gt AUTO operation indicates AC power operation Flashes fault codes set by the controls CONTROLS Mode Selector Switch 3 Position
74. ignored can cause injury and or property damage Safety Statements ADo not modify alter or equip the refrigerator to the use of any other fuel natural gas butane etc N6XX 8 refrigerators are designed and equipped for the use of LP gas propane gas only incorrect installation adjustment alteration or maintenance of the refrigerator can cause personal injury property damage or both Do not smoke light fires or create sparks when working on the propane gas system Do not use an open flame for leak testing any of the propane gas system components Propane gas is highly flammable and explosive AA ways use two wrenches to tighten or loosen LP gas connections Damaged connections piping and components create the potential for gas leaks electrical connections and repairs to the refrigerator must comply with all applicable codes Refer to the certification and code requirements section of the N6XX N8XX Installation Manual ADo not work on live electrical circuits Turn off AC power and DC power sources before attempting to remove service or repair any of the refrigerator s electrical or electronic components ADo not modify bypass or eliminate any of the refrigerator s electrical components electronic circuits or propane gas system components ADo not wet or spray liquids on or near electrical connections or electronic components Most liquids including leak detection solution
75. il a full cooling cycle on AUTO AC is completed Gas lock out can also be cleared by turning the refrigerator OFF then back ON Shift from AUTO LP GAS to AUTO AC In AUTO mode the controls shift automatically from AUTO LP GAS back to AUTO AC when the controls detect that AC power has become available Troubleshooting No Flame and No AC Faults Use the following references to identify troubleshoot and correct an ignition failure and or no AC faults B Page 12 F no FL fault codes troubleshooting flowchart Page 16 A no AC fault codes troubleshooting flowchart Page 62 Diagnostic Mode N62X N82X Models Screen 4 Nom Refrigerator Service Manual www norcold com cda N6XX N8XX Models 57 AUTO DC Operation 3 Way Units Only In AUTO DC mode the controls shift to DC power when AC power is not present and flame is not sensed The shift to AUTO DC operation does not show on the display The shift is invisibly performed by the controls When the controls shift to AUTO DC 1 The AUTO AU mode operation indicator displays 2 AU indicators Alternating AU alternate flashing on the display as the controls search for AC LL FIL power Display 3 When AC power is not present the controls shift to AUTO LP mode Alternating AU and LP indicators alternate flashing on the display as the le lt
76. ill or ream the orifice opening to clean it Insertion of any type of cleaning tools reaming or drills through the opening will alter the volume of LP gas flow to the burner and create a fire hazard potential 11 12 13 14 15 16 1A 18 19 20 A CAUTION Do not use compressed air to clean a jeweled type orifice The air pressure may unseat the jewel orifice insert from the adapter Visually inspect the orifice If dirty wash the assembly with alcohol then allow to air dry Replace the orifice assembly if the cleaning fails to remove dirt or if the condition of the orifice assembly is questionable Clean any accumulation of dirt or debris from the burner box base Reinstall the burner Do not over tighten the burner s retaining screw A CAUTION To avoid gas leaks and prevent damage to connections piping and components always use two wrenches to tighten the burner tube Adamaged burner tube creates a potential for gas leaks Install the orifice assembly First thread the orifice assembly into the burner finger tight then finish tightening using two wrenches Connect the burner tube First thread the fitting finger tight then finish tightening using two wrenches Install the burner box cover Do not overtighten the cover retaining screw Open the LP gas tank valve Open the solenoid gas valve manual shut off Turn ON the refrigerator and select LP manual mode operation
77. is as specified measure the Divider Heater heater s resistance at ambient temperature The divider heater is permanently foamed between When replacing an AC heater make sure the stop bead the divider separating the freezer and fresh food rests fully against heater tube rim See Figure 22 compartment The controls constantly monitor power Figure 21 Lamp Thermistor Assembly board voltage output to the heater through built in AC Heater Circuit Fuse diagnostics Turning the refrigerator on automatically The AC circuit fuse is a fast acting 5 amp x 1 powers the heater AGC type It is on the power board terminal F3 34 N6XX N8XX Models www norcold com cda Refrigerator Service Manual AC Power Cord The AC power cord shown in Figure 23 a is used on units without ice maker On all AC power cords the round side of the plug that connects to the power board faces the left side of the power board The cord s grounding prong on the AC outlet connector must be left intact and never be modified or cut The cord s ground wire green wire must always be fastened to the refrigerator cabinet metal plate Power Cord for Ice Maker Units The AC power cord shown in Figure 23 b is used on N64X IM and N84X IM units IM ice maker The cord has two short wire leads originating at the rear of the power board connector plug to connect the ice maker wire harness black and white leads The short ribbed wire is the line voltage lead
78. ise extreme care when handling the refrigerator sure all hardware such as hinges and fasteners retaining screws etc are properly fastened Refrigerator Service Manual ROAD LBA www norcold com cda N6XX N8XX Models SPECIFICATIONS N61X N81X Models 4 Storage volume 52 7 8 in x 23 1 2 in x 24 in 59 7 8 in x 23 1 2 in x 24 in Decorative panels dimensions Thickness Freezer door H x W both models Fresh food compartment H x W 31 5 8 in x 21 19 32 in 38 5 8 x 21 19 32 in Controls Electronic with built in diagnostics Mode selector switch 3 position slide type Temperature switch 5 position slide type Temperature settings 1 cold 5 coldest Temperature sensor Thermistor fin mounted 10 fin Off level operating limits Side to side 3 degrees maximum Front to back 6 degrees maximum DC power Controls operating voltage 10 5 to 15 4 Vdc Fuse control circuit F1 in power board 5 A tan color automotive blade type Fuse fan N6XXF N8XX F models with an in line fuse 1A 1 41 x 1 1 4 in AGC type fast acting DC amperage draws at nominal 12 Vdc Automatic ignition Divider heater Fresh food compartment lamp Gas valve Fan N6XX FN8XXF models only AC power AC heater operating voltage 108 to 132 Vac Fuse AC heater circuit F3 in power board 1 4 x 1 1 4 in AGC type fast acting AC heater rating 300 W 2 5 A 120 Vac resistance of
79. justment The ice maker water fill adjustment is factory set Tampering with the water adjustment screw may cause the water valve to close before the mold is filled to normal level or exceed the mold water level If the valve closes before the mold is filled to capacity the ice cubes produced will be small and thin If the water valve remains open longer than 7 5 seconds the water level in the mold will be above the normal level The excess water above the normal level tends to forma layer of ice that fuses all the ice cubes The surface tension created by the extra layer of ice prevents the ejector from removing the ice cubes from the mold The water fill adjustment screw location is shown in Figure 53 page 69 Turning the screw 1 4 turnina clockwise or counterclockwise direction varies the fill by 0 34 fl oz 10 mL Turning the screw varies the location of the adjustable internal copper contact The small hole in the contact should be in the center of the module housing hole alignment indicator With the hole centered the water valve should remain open approximately 7 5 seconds Low Ice Yield The thermostat initiates the cycle when the temperature of the mold is approximately 14 F For the ice maker mold to reach 14 F the freezer temperature must be maintained at or below 0 F In gas absorption refrigerators low ice yield may be caused by poor cooling unit ventilation which will directly affects freezer temperature Wat
80. l and rear of refrigerator less than 2 0 in Aluminum or Galvanized Steel Sheet Distance between rear of refrigerator full width baffle condenser baffle 0 25 in 0 1in Distance between bottom of refrigerator condenser and top e of baffle O 25 in 621156 Vent Align horizontally with lower vent Bend of baffle flush with bottom N edge of vent door frame Aluminum or Galvanized Steel Sheet full width baffle Enclosure widths Fan gt N6XX 23 50 in N8XX 23 50 in HHK Lu 621156 Vent 13 75 high x 21 50 wide rough opening R O Center vent R O in enclosure width Minimum distance between the bottom of the enclosure and the top of the upper vent opening N6XX models 55 in N8XX models 62 in Enclosure Heights N6XX 52 88 in N8XX 59 88 in Enclosure depths of more than 24 in and less than 26 in Vent even or below enclosure floor Figure 6 Baffle Arrangement for Enclosures Depths of More than 24 Inches and Less than 26 Inches NORQ MD Refrigerator Service Manual www norcold com cda N6XX N8XX Models 25 Distance between wall and rear of refrigerator 2 0 in or more Aluminum or Galvanized Steel Sheet full width baffle Enclo
81. l assembly on the divider Do not overtighten the retaining screw 3 Reinstall the front box Do not overtighten the retaining screw 4 Turnonthe refrigerator then check all of the optical control assembly functions Figure 43 N64X 84X Optical Control Assembly With Front Box 56 N6XX N8XX Models www norcold com cda Modes of Operation AUTO In AUTO mode AC power is the first heat energy source selected by the controls If AC power is not present the controls shift to LP gas propane the second priority heat energy source AUTO N64X 3 N84X 3 3 way units In 3 way units if LP gas if a flame is not sensed then flame goes out or an ignition failure occurs the controls shift to DC power the third priority heat energy source For additional information on 3 way units AUTO mode see page 58 AUTO AC Operation When the AUTO mode is selected the controls 1 Display AUTO AU mode operation indicator AL Alternating IL Display 3 Turn off AU and AC when AC power is selected and displays the ON LED See In AUTO mode pressing the MODE switchbutton 2 Flashes AU and AC as the search for AC power begins NOTE 1 momentarily displays the heat energy source in use For example in AUTO AC the display alternate flashing AU and for approximately 10 seconds AUTO LP Operation The controls shift to
82. lation and operation at coldest setting for a period of 8 12 hours W Freezer 5 F to 10 F W Fin temperature 18 F to 25 F 40 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Replacing the Cooling Unit Freezer plate Fin assembly Condenser lan j Foam block Leveling chamber Burner box Burner box window Cabinet VOEREEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEL Heat deflector Combustion seal Canister DC heater 3 way units only AC heater Figure 28 Cooling Unit and Components This procedure supplements the instructions packaged with N6XX N8XX models replacement cooling units Follow the procedure thoroughly to install the cooling unit correctly Incorrect installation adjustments or modifications will affect cooling performance Removing the Refrigerator from the Enclosure Refer to Figure 28 to locate components 1 Close the LP gas tank valve s 2 Disconnect the AC power cord from the RV receptacle 3 Turn OFF RV DC power to the refrigerator 4 Disconnectthe DC power supply wires from the power board Disconnect the RV LP gas supply line from the gas valve N64XIM N84XIM ice maker a Close the water supply valve to the ice maker b Disconnect the RV water supply line from the ice maker water valve Remove two retaining screws from the bottom trim piece then
83. lectrode io Burner Orifice assembly e o LP16 orifice shown Pressure Manual shut off RV Burner box base test port shown closed LP gas supply Figure 8 LP Gas System Components Pressure Requirements Testing for LP Gas Leaks A WARNING When working on or near the LP gas system E Do not smoke or light fires Extinguish all open flames E Do not use an open flame to leak test any of the A WARNING Do not wet or spray liquids on or near electrical connections or electronic components Many liquids including leak detection solutions are electrically conductive and can create an electric shock hazard short electrical components and or damage electronic LP gas system components LP gas is highly circuits flammable and explosive E Do not connect the refrigerator directly to the LP gas tank Always use an approved pressure regulator between the LP gas tank and the refrigerator LP gas system A CAUTION Do not use leak test solutions that contain ammonia or chlorine Ammonia and chlorine attack copper and brass components To prevent damage to connections piping and components always use two wrenches to tighten or loosen connections Damaged connections piping and components create the potential for gas leaks The refrigerator LP gas system shown in Figure 8 is Leak testing can be accomplished using an electronic
84. me sensing circuit places the controls in gas lock out In turn the controls command the ON LED and GAS LED to flash at one second intervals The AC flowchart on page 16 provides information to troubleshoot no AC power faults The F no FL flowchart on page 12 provides information to troubleshoot no flame faults GAS Mode In GAS mode the controls will only select LP gas for operation GAS mode operation is monitored by the flame sensing circuit Normal GAS mode operation is indicated by the GAS LED No Flame In GAS mode if a flame does not ignite during the 30 second trial for ignition or the flame goes out the flame sensing circuit shuts off power to the gas valve and places the controls in gas lock out In turn the controls command the GAS LED to flash at one second intervals The F no FL flowchart on page 12 provides information to troubleshoot no flame faults Backup Operating System The Backup Operating System BOS allows cooling to continue if the thermistor should fail BOS is a duty cycle operation The duration of the cooling cycle can be regulated by adjusting the temperature setting The higher the temperature setting number the longer the cooling cycle operates When the controls switch operation to BOS the ON LED flashes once every three seconds The flowchart on page 20 provides thermistor troubleshooting information Gas Lock Out Gas lock out prevents the controls from
85. ng to models can be found in the following pages Page 52 N611 N811 models mM Page 54 N62X N82X models n Page 57 N64X N84X models N64X N84X Optical Control Assembly Figure 35 N6XX N8XX Optical Control Assemblies 46 N6XX N8XX Models www norcold com cda Refrigerator Service Manual 5 Amp Fuse 5 Amp Fond 5 Amp Fuse 5 Amp Fond Spark electrode Display board Exposer le panneau Divider heater Chauffant de diviseur Declencher l electrode 120 VAC E 12 VDC VCC 120 VCA 12VDC VCC Gas valve E Gazer la soupape AC heater CA chauffage N61X N81X Wiring Pictorial Power board 12V GND1 TS NT Panneau de 12 VDC 12 VCC distribution gt Gas solenoid valve gt Electrovanne a gaz 12 VDC 12 VCC RED ROUGE RED ROUGE RED RGE WHT BLK BLANC NR 1 is RED WHT RGE BLANC x 7 LK WHT NR BLANC Temperature sensor Thermosonde WHTIREDIBLANCIRGE Divider heater Chauffant de diviseur BLK NOIR BLU BLEU GRN VERT WHT VIO BLANC VIO BLK NOIR 1 I 120 VAC AC heater 120 VCA CA chauffant Temperature sensor light assy Detector de temperature allume assy Fan thermostat Ventilateur Ventilateur thermostat RED RED ROUGE ROUGE Fan Ventilateur Fan thermostat Ventilateur thermostat Fan Models Modeles Ventilateur Display board Panneau de affichage Selector switch
86. ning 10 5 to 15 4 Vdc to the refrigerator No other appliance or lighting circuit is connected to the refrigerator DC circuit Model and fault indicator displayed Alternating 4 Display Sm N64X 3 N84X 3 Check condition of F2 fuse in power board Replace fuse Use a standard 30 amp green color automotive blade type fuse Check DC heater resistance Resistance See Figure r Replace DC heater Replace power board DC heater resistance 0 81 to 0 910 RR ES Re MD Refrigerator Service Manual www norcold com cda N6XX N8XX Models 15 A no AC Fault Code No AC power available Before beginning this procedure make sure No other problem exist with the RV AC power supply m No other appliances or lighting circuits are connected to the refrigerator AC circuit m Extension cords are not being used to supply AC power to the refrigerator Models and fault indicator displayed on AC GAS check if flashing AUTO Does not operate on AC when set to AUTO LP GAS N61X N81X N62X N82X Measure voltage at power board AC cord connection 108 NO to 132 Vac YES Check condition of F3 fuse NO in power board YES Check that fuse holder clips NO are making full contact with fuse D YES nat 5 Alter ating T gible y Display 9 N64X N84X 1 Check AC power input from RV to unit 2 Check for faulty AC power cord Replace fuse Use a 5 amp 1 4 x 11 4
87. not overtighten fittings Install the spark sense electrode assembly Set electrode to burner air gap 1 8 to 3 16 inch Install the burner box cover Connect the AC heater wires to power board terminals AC HT LO1 andAC HT HI 3 way refrigerators AC LP DC a Install DC heater into tube b Connect heater wires to terminals FLP_DC HEAT and DC_HT_GND Reinstall the power board cover Connect the gas valve wires to the power board terminals GV and GV_GND Plug the AC cord into the power board Connect the spark sense electrode assembly to the power board Condenser retaining screw Y 3 4 in TITTEN ui to a TE TON TETTO TN UL RN Eo TM Figure 29 Condenser Angle and Retaining Screw Low temp lt evaporator 1 2 in bead of sealant Foam plug step 1 2 in bead of sealant High temp evaporator 1 2 in bead of sealant Figure 30 Application of Sealant Y i Re MD Refrigerator Service Manual www norcold com cda N6XX N8XX Models 43 ani Reinstallation of Refrigerator into Enclosure 10 11 12 A WARNING Do not install the refrigerator if the combustion seal has been damaged Adamaged combustion seal must be replaced The seal isolates the living area of the vehicle from exhaust gases generated by LP gas combustion LP gas exhaust gases contain carbon monoxide which is an odorless colorless gas that can cause dizziness nausea or in ex
88. nput device operating within specification YES Level refrigerator as outlined NO Refrigerator in Owner s Manual and operating leveled specifications Maximum off level limits E degrees side to side B 6 degrees front to back YES Continued on page 40 NORAD Refrigerator Service Manual www norcold com cda N6XX N8XX Models 39 A WARNING Do not operate the From page 40 1 refrigerator if the cooling unit is leaking or a leak is suspected Check condition of door gaskets Repair replace door as Door gaskets required sealing properly Recheck cooling unit for leaks Any signs of Replace cooling unit leakage present Test test cooling unit performance Replace cooling unit Cooling detected Refrigerator Unit is operating normally temperatures normal Check thermistor and power board operation Visual and audible signs of leak s W Yellow residue on the rear of the refrigerator W Ammonia smell E Gurgling noise not always present Cooling unit performance test 1 Disconnect thermistor from the wire harness 2 Set temperature setting to the coldest setting 3 Place thermometer in freezer 4 Allow unit to operate for 3 4 hours 5 Measure temperature The back of the freezer plate should be cool after 3 4 hours of continuous operation Temperatures given below are based on 90 F ambient temperature correct venti
89. ntrols will lock out all heat sources AC LP DC The power board can then only be reset by an authorized service center after troubleshooting and testing cooling system operation See Page 21 Refrigerator Service Manual www norcold com cda N6XX N8XX Models 37 Troubleshooting Cooling Faults A high percentage of cooling units returned labeled faulty are fully operational units The flowchart on page 38 provides information to troubleshoot cooling unit related faults Poor or No Cooling on AC Mode A WARNING Do not work on live circuits Turn off and disconnect AC power and DC power supplies before attempting to remove service or repair any of the refrigerator s electrical or electronic circuits or components When troubleshooting poor or no cooling in AUTO AC or AC Manual Mode first check AC voltage input to the power board then check voltage output to the heater and the heater s amperage draw AC voltage problems high or low voltages caused by the RV AC power supply circuit To troubleshoot AC faults refer to the diagnostic flow charts on pages 16 17 and 18 of this manual Poor or No Cooling on LP Gas Mode A WARNING LP gas propane is highly flammable and explosive Do not smoke light fires or create sparks when working on the LP gas system Do not use an open flame to leak test any propane gas system component When troubleshooting poor or no cooling in AUTO LP mode or LP
90. number 657908 or higher manufactured on or after February 16 1999 are equipped with the new style solenoid gas valve See Figure 9 Units with serial numbers lower than 657908 models manufactured before February 16 1999 are equipped with the old style solenoid gas valve See Figure 10 The electronic controls automatically operate the solenoid gas valve New Style Solenoid Gas Valve The new style solenoid gas valve manual shut off and pressure tap are integrated in the valve s body The valve s manual shut off is a spring loaded quarter turn manually operated valve To manually shut off gas to the burner pull the handle slightly away from the body then turn it one quarter turn 90 degrees counterclockwise Old Style Solenoid Gas Valve Refrigerators with serial numbers lower than 657908 models manufactured before February 16 1999 are equipped with the old style solenoid gas valve See Figure 10 Use a NORCOLD gas valve conversion kit part number 621334 to replace an old style solenoid gas valve assembly Solenoid Gas Valve Connections The solenoid gas valve inlet fitting is 3 8 inch male threads the outlet fitting is 1 4 inch male threads DC connections Mounting bracket Gas outlet L fitting me O from RV m OR y es Gas pressure test port Solenoid Gas inlet Manual shut off
91. on of ANSI Z21 19B standards for installation in mobile homes or recreational vehicles and with the Canadian Standards Association CAN CGA 1 4 M94 Electrical components are compliant About Installation Refrigerator installation must conform with the N6XX Installation Manual for the NORCOLDS limited warranty to be in effect Installation must also comply with applicable local codes and standards set by the cognizant certification agency Replacement Parts Use only authorized NORCOLD replacement parts Generic parts do not meet NORCOLD specifications for safety reliability and performance The use of unauthorized aftermarket or generic replacement parts voids the refrigerator s limited warranty coverage Technical Assistance If unable to resolve technical issues using the information provided in this manual technical support is available through NORCOLD Customer Service Center Telephone 1 800 444 7210 A ey gt Arr 1 937 497 3183 Jf World Wide Web www norcold com The following information is required to process technical support requests B Model number B Serial number B Make model and year of recreational vehicle Nom Refrigerator Service Manual www norcold com cda N6XX N8XX Models 1 Testes for LP mas envies for omne fente morte Ds mimm ror Le rmm NORCOLD Sv 11x vu
92. onal vehicles RV All information illustrations and specifications contained in this publication are based on the latest product information available at the time of publication NORCOLD reserves the right to make changes at any time without notice Model Identification Models N61X N81X N62X N82X N64X and N84X are 2 way refrigerators that operate on AC power or LP gas Models N64X 3 and N84X 3 are 3 way refrigerators that operate on AC power LP gas or DC power Letter s appended to the model number identify factory installed accessories For example an N821F is a 2 way refrigerator equipped with a factory installed 12 Vdc cooling unit ventilation fan an N6411M is a 2 way refrigerator equipped with an ice maker Information Label The information label is located in the upper right corner of the fresh food compartment just below the divider See Figure 1 page 2 The label provides the following information W Serial number Model number LP gas propane pressure Btu h AC voltage and amperage DC voltage and amperage Design certification Vent kit requirement Cooling Unit Serial Number The cooling unit serial number appears on the cooling unit bar code label The label is affixed to the surface of the cooling unit leveling chamber See Figure 2 page 2 INTRODUCTION Certification and Code Requirements NORCOLD N6XX N8XX gas electric absorption refrigerators are certified under the latest editi
93. r board as shown detected A figure and described in procedure 3 Allow unit to operate normally Check for completion of co Cooling unit is good Recheck for cooling cycle after resetting ventilation obstructions and leveled power board operation 1 Replace cooling unit if no co shows before completing a full cooling cycle 2 Reset power board as shown in figure and described in procedure Power Board Resetting Procedure 1 Turn OFF the refrigerator 2 Disconnectthe following from power board a 12 Vdc positive and negative wires b AC power cord c Solenoid gas valve wires d Spark sense electrode assembly wires 3 Remove the power board cover 4 Reconnect 12 Vdc positive and negative wire 5 Turn ON the refrigerator siens 6 Locate Pin 15 on 16 pin connector P1 Pin 15 is Pin A To pin 15 PT Lug the empty socket to the right of the white violet White violet wire 22 AWG with 1 2 long stripped ends wire on the top row See Figure Figure C Resetting Power Board 7 Using an insulated jumper wire short Pin 15 to the power board ground lug for 10 15 seconds A click sound will indicate when the controls are reset 10 Turn OFF the refrigerator See Figure C 11 Disconnect the 12 Vdc power positive and negative wires from the power board 12 Install the power board cover A jumper wire to short Pin 15 to ground can be made 13 Reconnect the following to the power board from a
94. remove trim piece See Figure 31 page 44 Remove two retaining screws from the bottom of the cabinet See Figure 31 page 44 Remove two hole plugs from the top trim See Figure 32 page 44 Remove two top cabinet retaining screws See Figure 32 page 44 Refrigerator Service Manual www norcold com cda N6XX N8XX Models 41 Removal of Cooling Unit 10 11 N64XIM N84XIM ice maker a Remove the ice maker water line b Disconnect the ice maker wire harness wires white and brown wires from the water valve solenoid o Disconnect the ice maker wire harness ground wire Move the wire harness out of the way Remove the water valve N62XF N82XF N64XF N84XF fan models Remove the fan bracket thermostat and wiring from the cooling unit Remove the drip cup retaining screw then remove the cup Remove the burner box cover retaining screw then remove the cover Disconnect the burner tube from the gas valve at the gas valve Remove the burner retaining screw Remove the burner tube and burner from the burner box Disconnect the gas valve wires from the power board Remove the gas valve assembly including bracket Loosen the spark sense electrode assembly retaining screw and remove the assembly from the burner box Remove the rear mounting flange screws Pull the refrigerator from the enclosure Remove the burner box retaining screws then remove the burner box
95. riker plate okay Check for correct door installation See NOTE below Food Compartment Lamp Switch The reed relay switch that turns the fresh food compartment light on and off is an integral component of the optical control display board circuitry Lamp Switch Operation The magnetic pull from a permanent magnet located underneath the top door trim maintains the switch contacts open light off when the door is fully closed Opening the door breaks the magnetic pull which in turn causes the switch contacts close light on Always follow the instructions provided in the Owner s Manual to change the refrigerator door swing The bottom door trim does not have a magnet Inverting the doors will required non approved modifications and will cause the fresh food compartment light to remain on when the door is closed 1 y i NG4XINSAX gt Magnetic tip screwdriver Lamp Switch Testing Procedure Slide a magnetic screwdriver tip or a small magnet on the underside of the optical control assembly as shown in the figure above Check the food compartment light as the screwdriver tip is moved under the display the light a should turn off when the magnetic screwdriver tip or magnet passes under the optical control assembly b turn on when the magnetic screwdriver tip or magnet is distanced from the underside of the optical control assembly If the light does not turn off when the magnet passes under th
96. s Retaining wire gt amp Baffle Figure 15 Flue Baffle Light blue steady flame with sharp blue cones Figure 16 Flame Appearance 30 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Burner Cleaning Procedure A WARNING Burn hazard Allow the burner box and burner components to cool before attempting to service the burner assembly or components 1 Turn OFF power to the refrigerator 2 Close the LP gas tank valve Step 3 through Step 5 refer to Figure 17 page 32 3 Close the combination gas control valve manual shut off 4 Remove the drip cup A CAUTION To prevent damage to connections piping and components always use two wrenches to loosen the burner tube A damaged burner tube creates a potential for gas leaks 5 Remove the burner box cover Step 6 through Step 8 refer to Figure 18 page 32 6 Disconnect the burner tube from the orifice assembly 7 Remove the orifice assembly from the burner 8 Remove the burner retaining screw 9 Remove the burner from the burner box frame 10 Clean the burner The burner slots may be cleaned with a small flat file The inner bore of the burner body may be cleaned with a 3 16 in double spiral wire brush Do not damage the threads when cleaning the inner bore of the burner Do not insert any type of cleaning tool or wire into the orifice Do not dr
97. s are electrically conductive and pose the potential for an electric shock hazard short electrical components damage electronic circuits and or ignite a fire ADo not use leak test solutions that contain ammonia or chlorine Ammonia and chlorine degrade copper and brass components AThe cooling unit is a sealed system under pressure Do not try to repair or recharge the cooling unit Do not bend drop weld drill puncture saw or strike the cooling unit Handle a leaking cooling unit with extreme caution The cooling unit contains ammonia hydrogen and sodium chromate Ammonia can cause severe skin and eye burns Hydrogen is highly flammable can ignite and burns with an intense flame Certain chromium compounds such as sodium chromate are carcinogenic ADo not use extension cords Do not remove the grounding prong from the refrigerator AC power cord Do not use a two prong adapter to connect the refrigerator to the AC outlet ADo not over fuse electrical circuits Use specified fuses and AWG wire sizes The specification section of this manual provides fuse size information Refer to the N6XX 8XX Installation Manual for the correct AWG wire size specifications Prevent child entrapment Before disposing of the refrigerator remove all doors and fasten all shelves with retainers A Some of the refrigerator s metal components have sharp corners and edges Wear hand protection such as cut resistant gloves and exerc
98. six inch long insulated 22 AWG wire with a 1 2 a Spark sense electrode assembly wire inch of insulation stripped from each end b Solenoid gas valve wires c AC power cord 8 Turn OFF the refrigerator d 12 Vdc positive and negative wires from the 9 Turn ON refrigerator If n or no co code power board displays repeat steps 7 o 14 Place refrigerator in service Refrigerator Service Manual www norcold com cda N6XX N8XX Models 21 Errata Sheet 01 16 04 VENTILATION Roof Exhaust Venting The space between the air intake vent and the rear of the refrigerator must be kept clear at all times Any obstruction in this area may cause serious ventilation problems The air intake vent opening is also the access for servicing cooling unit components The general guidelines for intake vents and roof exhaust vents presented in this section do not replace the instructions and or guidelines provided in the N6XX N8XX model refrigerator installation manual and the 9 Roof Exhaust Vent Ventilation Guidelines For Gas Electric Refrigerators M part number 622090 3 01 Refer to the N6 N8 The heat absorbed by ventilation air and combustion installation manual and Ventilation Guidelines For Gas gases flow out of the enclosure through the roof Electric Refrigerators for the latest information on exhaust vent See Figure 3 and Figure 4 page 23 approved vents installation instructions and special The roof exhaust ven
99. sure Heights N6XX 52 88 in N8XX 59 88 in 0 1in 0 25 in Fan Enclosure depths of 26 in or more gt Distance between rear of refrigerator condenser and box baffle 0 25 in Distance between bottom of refrigerator condenser and top of solid box baffle 0 25 in 621156 Vent Align horizontally with lower vent Top edge of box baffle flush with bottom edge of vent door frame Wood or Aluminum or Galvanized Steel Sheet full width box baffle Enclosure widths N6XX 23 50 in N8XX 23 50 in Distance between top of lower vent opening and bottom of solid box baffle 4 5 25 in 621156 Vent 13 75 high x 21 50 wide rough opening R O Center vent R O in enclosure width Minimum distance between the bottom of the enclosure and the top of the upper vent opening N6XX models 55 in N8XX models 62 in Vent even or below enclosure floor Figure 7 Baffle Arrangement for Enclosures with Depths of 26 Inches or Greater 26 N6XX N8XX Models www norcold com cda Refrigerator Service Manual LP GAS SYSTEM Canister Flue tube DC connections Gas valve Baffle Burner tube Gas inlet fitting E
100. t is equipped with non removable construction exceptions metal mesh screen that prevent leaves debris birds or rodents from getting into the enclosure The roof cap is Air Intake Vent fastened to the exhaust vent with four screws The cap The ventilation and combustion air flow into the is always installed with the slope towards the front of enclosure through the air intake vent See Figure the RV Figure 4 page 23 RV front RV rear Roof exhaust vent Exhaust vent scree Baffle Full width of enclosure to isolate the top of refrigerator from rejected heat Condenser 1 8 inch maximum if wider see Figure 4 Absorber coils 1 inch maximum If wider see Figure 5 Intake vent Figure 3 Roof Exhaust Venting Arrangement 22 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Top baffle Required when the clearance from the underside of the roof to the top of the refrigerator exceeds 1 4 inch If ii Condenser iL Side wall baffles Required when the clearance between the enclosure side walls and refrigerator exceeds 1 8 inch
101. t leveled Heat Absorption The refrigerant transfers the heat from the freezer and the food cabinet to the absorber coils At the absorber coils the metal surface absorbs the heat and air flow over the external surfaces of the coils and carries away the heat Athermal air current created by the rising hot air flows out of the enclosure through the roof exhaust vent or sidewall exhaust vent depending on installation The flowing air mass passes over the surface of the condenser fins where it absorbs heat transferred from the ammonia vapors flowing through the condenser The thermal airflow process creates a chimney effect The chimney effect creates a continuous draft of cooling and combustion air The fresh air drafted by the chimney effect though the intake vent removes rejected heat support combustion and expels the exhaust gases produced by the combustion process Obstructions restrictions or modifications to vents or the enclosure will affect the heat absorption cycle Poor cooling unit performance may be due to W Loose insulation interfering with the ventilation process W Construction material or debris left in the enclosure Insect screen covering vents Plastic sheeting covering vents Items stored in the enclosure Modifications to vents or enclosure W Noroofor sidewall exhaust vent opening Information pertaining to ventilation and enclosure requirements appears on page 22 Leveled Operation The circul
102. ted by the controls 21 BOW Cl BOJO 45 Removal Power Board 45 Ventilation 22 Installation Power Board sse 46 Roof Exhaust Venting amp 8 X 22 Optical Control Assembly 46 Air Intake Vent 99 RIO cerca LA 22 N61X N81X Wiring 47 Roof Exhaust mS 22 N61X N81X Wiring Pictorial 47 Balfles ener Nt Nee enne 23 N62X N82X N64X N84X N64X 3 N84X 3 Wiring Pictorial Vertical Angled Baffles 23 Units with serial number 851759 and higher 48 Double Sidewall Vefiting uses 24 N62X N82X N64X N84X N64X 3 N84X 3 Wiring Schematic Air Intake 24 Units with serial number 851759 and higher 48 Sidewall ExhaustQent 26 24 N62X N82X N64X N84X N64X 3 N84X 3 Wiring Pictorial Units with serial number lower than 851759 49 p O ee L N62X N82X N64X N84X N64X 3 N84X 3 Wiring Schematic Testing for LP Gas Leaks
103. tinuity Optical control display wire harness connection voltage measuring points Figure A Figure B P Ane Refrigerator Service Manual www norcold com cda N6XX N8XX Models 11 F no FL Fault Code Burner failed to ignite or reignite Before beginning this procedure make sure m RV LP gas tank valve is open m Refrigerator solenoid gas valve manual shutoff is open m LP gas pressure at the solenoid gas valve pressure tap is 10 5 Models and fault indicator displayed J GAS LED AC LP GAS ou AUTO N61X N81X N62X N82X Check burner Burner NO clean YES Air gap 1 8 to 3 16 inch Check that electrode tip to NO burner air gap is correct YES heck spark sense electrode assembly for continuity YES YES YES Check voltage across power board terminals GV and Voltage GV GND YES Check gas valve solenoid resistance Check gas valve solenoid wires for continuity N64X N84X Clean and service burner See page 30 Set electrode to burner air gap 1 8 to 3 16 inch Replace spark sense electrode assembly Replace gas valve Replace gas valve wires Replace power board Faulty or obstructed gas valve Replace gas valve 12 N6XX N8XX Models www norcold com cda Refrigerator Service Manual S Sr Fault Code Flame sense circuit failure Models and fault indicator displayed ac LP eas m Auto l Jf N62X N82X N64X N8
104. tor sensing Screen fin temperature Number Press the button to bring up screen 8 MODE Screen H Power Board Outputs Screen 8 displays live power board outputs using lighted LED segments The illustration below provides live outputs information and assigned LED segments If a power board output is active or live its assigned output LED will be on DC power to DC heater AC power to AC heater DC power to divider heater Screen DC power to gas valve Number DC power to ignition circuit DC power to light switch 3 way models Press the button to bring up screen 9 MODE Screen H Power Board DC Voltage Status Screen 9 displays DC voltage status using lighted LED segments The illustration below provides DC voltage status information and assigned LED segments If DC voltage at the power board within normal range 10 5 to 15 4 Vdc LED segment 4 will be on DC voltage higher than 15 4 volts Screen DC voltage normal Number DC voltage lower than 10 5 volts Press the a button to bring up screen 0 MODE Screen Power Board AC Voltage Status Screen 0 displays AC voltage status using lighted LED segments The illustration below provides AC voltage status information and assigned LED segments If AC voltage at the power board within normal range 108 to 132 Vac LED segment 4 will be on AC voltage higher than 132 volts Screen N mber AC voltage normal
105. treme concentrations death Check the condition of the combustion seal Replace seal if damaged Do not install the refrigerator if the combustion seal is damaged Place the refrigerator in the enclosure The combustion seal must seat fully against the enclosure wall Attach the bottom of the cabinet to the enclosure See Figure 31 Reinstall the bottom trim piece See Figure 31 Secure the top of the cabinet with two screws and install hole plugs See Figure 32 Secure the back of the cabinet to the enclosure floor with two screws N64XIM N84XIM ice maker a Connect the water supply line to the ice maker water valve b Open the water supply to the ice maker Connect the RV LP gas supply line to the gas valve inlet fitting Open the solenoid gas valve manual shut off Plug the refrigerator AC power cord to the RV receptacle Connect the RV DC power supply wires to power board terminals 12VDC and 12V_GND1 Open the LP gas tank valve s then leak test LP gas connection at solenoid gas valve Leak test the burner solenoid gas valve and orifice assembly burner tube connections Cabinet retaining screws Bottom trim piece Figure 31 Bottom trim and retaining screws Cabinet retaining screws Hole plugs Figure 32 Top retaining screws and hole plugs 44 N6XX N8XX Models www norcold com cda Refrigerator Service Manual Inputs outputs monitoring and di
106. ts s sss 1 Burner Cleaning Procedure sss 31 Technical ASSISTANCE 1 Electrical Requirements and Components 33 Safety Awareness 3 DC Voltage Requirements and Polarity 33 Safety Notice 3 Power Board DCFus 33 Attention Statements premenami tenens Power Wiring 33 Safety Statements 3 2 WaW lodels entrent ren erede nen re tede 33 T AE Nude 33 Specifications ere ee 4 AC DC Converter as Power Source 33 N6TX N81X 4 DC Heater 3 Way Refrigerators Only UTIMUR 33 N62X N82X Models cert retreat qe 5 DC Heater Circuit Fuse 33 N64X N64X 3 N84X N84X 3 Models eene 6 Lamp Assembly 34 Troubleshooting Quick Reference Guide 7 nU Sun gt N61X N81X Displayed Fault Codes B adpawerRequirements 34 ienlauard Fault Cadac mcm D er D hate e deceret hu sine 34 Dispiayed Faull Godes 3 AC Power Cord ss 35 N64X N84X Displayed Fault Codes 10 Power Cord for Ice Maker
107. ts light See illustration Lr LILI If the screen segments do not match the ones shown in the illustration the fault is in the optical control assembly Replacing the optical control should resolve the fault Press the 8 button to bring up screen 2 MODE Screen LED Segments Reliability Check Screen 2 diagnostics continue to confirm the reliability of the display After a few seconds only the ON light displays All other LED segments should be off See illustration Q9 ON Light The ON light should be the only LED displayed If any other LED displays the fault is in the optical control assembly Replacing the optical control should resolve the fault Press the button to bring up screen 3 MODE Screen Thermistor Fin Temperature Screen 3 displays the actual fin temperature being sensed by the thermistor This is not the fresh food cabinet air temperature The illustration shows 32 F fin temperature as displayed in screen 3 32 F Press the a button to bring up screen 4 Screen H Stored Fault History Screen 4 displays stored fault history using lighted LED segments The illustration provides fault history information and assigned LED segments f a fault occurred its assigned fault history LED will be on Door ajar Ignition fault DC voltage low DC voltage high AC relay stuck closed Screen Number A
108. wire to overheat and creates an electrical fire hazard 2 Way Models 18 AWG is the minimum AWG size wire that can be used for connecting DC power to 2 way models The size fuse for overload protection must not exceed 6 amps 3 Way Models The distance between the RV DC power source and the power board DC power connection terminals dictates the AWG size wire that must be used If the distance from the DC power source is 20 feet or less 10 AWG or a larger gauge wire must be used The size fuse for circuit overload protection must not exceed 30 amps Over 20 feet AWG 8 or a larger wire gauge must be used The size fuse for circuit overload protection must not exceed 40 amps AC DC Converter as Power Source The power board must be supplied 12 Vdc only from the filtered output battery side of a converter Unfiltered voltage commonly referred to as AC ripple output of AC DC converters can cause the electronic controls to set false fault codes It can also turn off the refrigerator or prevent the refrigerator from turning off DC Heater 3 Way Refrigerators Only A WARNING Do not wire the heater s direct Wiring heater s direct bypasses control safety devices and creates the potential for an electrical fire The DC heater shown in Figure 19 is a cartridge type heater The DC heater is rated for 225 Watts 16 amps at a nominal 14 Vdc Heater resistance should be 0 82 0 91 ohms NOTE The AUTO

warning

Contents

Download Pdf Manuals

Related Search

Related Contents