Friedrich CP10E10 User's Manual
Contents
1. J01 Swi FAN SPEED o 00000 1 gt DIGIT 402 o 0000000 CN DISP LEDS LED6 J12 TIMER E SAVER D SWING 18 o 003 78 LO IE ONA pod Service Manual 18 Troubleshooting Guide Troubleshooting Guide CONDENSER COIL FAN MOTOR CAPILLARY TUBE COMPRESSOR BLOWER EVAPORATOR COIL Figure 38 is a brief description of the important components and their function in what is called the refrigeration system This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle LIQUID PRESSURE DROP CAPILLARY TUBE Figure 34 CYCLE OF REFRIGERATION EVAPORATOR COILS CONDENSER COILS VAPOR INLET COMPLETE LIQUID SOOL TOW VAPOR HOT BOIL OFF POINT DISCHARGED COOLED 59707020774 LA AIR AIR pL I TAILLE LT EEE ROOM AIR HEAT LOAD LA lt OUTSIDE COOLING gt AIR FOR REFRIGERANT PASS THROUGH gt 42. COMPRESSOR oa E LIQUID OUTLET HIGH PRESSURE VAPOR PSS LOW PRESSURE VAPOR 54 19 Room Air Conditioner Troubleshooting Guide In general possible trouble is classified in two kinds The one is called Starting Failure which is caused from an electrical defect and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application Ineffective Cooling Y Unit runs but poor cooling Check cold air Check heat load increase Clean condenser Check outdoor coil circulation for smooth flow heat exchanger and fan operation Dirty indoor coil Check gas leakage heat exchanger Not on separate circuit Repair gas leak Malfunction of fan Check inside gas Replacement of unit if pressure Clogging of air filter the unit is beyond repair Adjust refrigerant Obstruction at air outlet charge Remove obstruction Malfunction of compressor Check clogging in refrigera Replacement of tion circuit compressor Satisfactory operation with temperature difference of inlet amp outlet air 44 50 F 7 10 C Repair clogging in refrigeration circuit Service Manual 20 Troubleshooting Guide Check of power source Check of circuit breaker and fuse Check of control
3. ES 908 dNCO AH 22 2187 2 quor asoa NIV TED wroozNT bod pu 9 8 51001 wea Ee cs mm 100 8 6 1 1BV lS3H V 01 150 SNIMS V 1090 201 oLbvdvo 7009 a800 ams 2 s 5 lo Te e es ss se Tt MT NV 4900 ONAS AH 3 038 4 53 us TOURS OVI 10255 00095 55 pueos pusi Vos X Sinon ong vms T sms T ins 21 MT z 5 E 1 g or n lo aTe Te Te Te Ta Te Te v 2 o xL 5 OS po 4204 HL 3dld E veo 79 seus vioo Z0 052MNS AL ND HL NOOH 75 17 Air Conditioner Schematic Diagram Components Location For Main PW B Oad T e CN THI 305 e BH S PWB P NO 6870 90069 ROW PWB ASS Y 6871410119 a PWB ASS Y 6871410123 POWER TRANS P NO 6870A90070A PWB ASM 6871A20443 10
4. both batteries are new e n order to prevent discharge remove the batteries from the remote control if the air conditioner is not going to be used for an extended period of time Keep the remote control away from extremely hot or humid places To maintain optimal operation of the remote control the remote sensor should not be exposed to direct sunlight Disassembly Disassembly Before the following disassembly POWER SWITCH set to OFF and disconnect the power cord 1 FRONT GRILLE 1 Open the Inlet grille upward or downward 2 Remove the screw which fastens the front grille 3 Pull the front grille from the right side 4 Remove the front grille 5 Re install the component by referring to the removal procedure above See Figure 17 Figure 17 2 CABINET 1 After disassembling the FRONT GRILLE remove the 2 screws which fasten the cabinet at both sides 2 Remove the 2 screws which fasten the cabinet at back 3 Pull the base pan forward See Figure 18 4 Remove the cabinet 5 Re install the component by referring to the removal procedure above Figure 18 3 CONTROL BOX 1 Disconnect the unit from the power source 2 Remove the front grille 3 Remove the cabinet 4 Remove the screw which fastens the control box cover 5 Remove the housing which connects motor wire in the control box 6 Remove the 3 leads from the compressor 7 Discharge the capacitor by placing a 20 000 ohmres
5. rriedrich Room Air Conditioner Service and Parts Manual 115Volts 10 10 eCP12E10 CP10 12 SVC PARTS 2008 07 08 Air Conditioner Service Manual TABLE OF CONTENTS eoo r bat en tete tei eae antec 3 6 6 Product Specifications sisson a cra 7 8 How to Operate Your Friedrich 9 Disassembly A EE 10 Mechanical Parts e totidem re E 10 Zur an 11 Electrical Parts DRE CREER ORE PRESQUE decane TIRE ERR area FERREA FUR nee 12 Refrigerating co vci bt ia ans M ba ab inta doti ads 13 Scheniatic Diagram oio reseau a 16 Winng 16 Electronic Control Device ausit to aln e e db asta adita ste 17 Components Location For Main PW B ASM sess tnter n
6. ves Is the voltage No 16 of CN DISP1 on Main P W B Assy DC 5V Is the connection of CN DISP1 all right Exchange Receiver Ass y NO Exchange the battery NO Check the P W B pattern NO Connect connector to CN DISP1 exactly Possible Trouble 6 It displays abnormally on Display P W B Ass y Is the ICO1G all right NO Is the connection of CN DISP1 all right yes Does the Q01G Q02G Q03G Q04G operate normally on main P W B Ass y Exchange the display P W B 5 NO gt Exchange 016 NO Connect connector to CN DISP1 exactly NO y Exchange Q01G 0026 0036 Q04G Service Manual 24 Troubleshooting Guide ROOM AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM MAXIMUM 115V 10 103 5V 126 5V COMPLAINT CAUSE REMEDY Fan motor will not run No power Check voltage at outlet Correct if none Power supply cord Check voltage to rotary switch If none check power supply cord Replace cord if circuit is open Rotary switch Check switch continuity Refer to wiring diagram for terminal identification Replace switch if defective Wire disconnected or Connect wire Refer to wiring diagram for connection loose terminal identification Repair or replac
7. CHARGE 4900 17 3 2 5059 17 802 EVAPORATOR 09 52 2ROW 13STACKS CONDENSER 01 0 17STACKS FAN INDOOR TURBO FAN FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING 3 3 FAN MOTOR 6 POLES OPERATION CONTROL REMOTE CONTROLLER ROOM TEMP CONTROL THERMISTOR AIR DIRECTION CONTROL HORIZONTAL LOUVER UP amp DOWN AUTOSWING LOUVER RIGHT amp LEFT CONSTRUCTION SLIDE IN OUT CHASSIS COMPRESSOR OVERLOAD PROTECTOR PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR 3 WIRE WITH GROUNDING POWER CORD ATTACHMENT PLUG CORD CONNECTED TYPE DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER OUTSIDE DIMENSION inch 235 8 1431 32 225 16 Wx Hx mm 380 x 600 x 555 DB Dry Bulb WB Wet Bulb Service Manual 7 Operation DESIGNED FOR COOLING ONLY POWERFUL AND INCREDIBLE COOLING TOP DOWN CHASSIS FOR THE SIMPLE INSTALLATION AND SERVICE BUILT IN ADJUSTABLE THERMOSTAT WASHABLE ONE TOUCH FILTER COMPACT SIZE Location and Function of Controls E Service Manual 8 How to operate your Friedrich 79 Mode 79 Off Fan Cool Dy Money Lg 24400 ower Temp ontrol and Remote Control Operations 1 POWER 5 Operation begins when this button is pressed and stops when you press the button again 2 TEMPERATURE CONTRO
8. pulling out from the base pan Re install the components by referring to the removal procedure above Figure 21 Move the condenser to the left carefully See Figure 22 Figure 22 Room Air Conditioner 3 7 8 Re install the components by referring to the 1 Remove the cabinet 2 Remove the evaporator 3 Remove the orifice 4 5 6 Remove the blower Remove the fan Remove the control box cover and housing of the motor in the control box Remove the 2 screws which fasten the motor from the mount motor See Figure 23 Remove the motor removal procedure above See Figure 23 1 WN OVERLOAD PROTECTOR Remove the cabinet Remove the nut which fastens the terminal cover Remove the terminal cover See Figure 24 Remove all the leads from the overload protector Remove the overload protector Re install the component by referring to the removal procedure above 2 COMPRESSOR 1 Remove the cabinet 2 Discharge the refrigerant system using a Freon Recovery System If there is no valve to attach the recovery system install one such as a WATCO 1 before venting the Freon Leave the valve in place after servicing the system 3 Remove the overload protector 4 After purging the unit completely unbraze the suction and discharge tubes at the compressor connections 5 Remove the 3 nuts and the 3 washers which faste
9. 29 remaining in the system With valves A and B closed stop the vacuum pump 4 Remove the hose from the vacuum pump and place it on the charging cylinder See figure 37B Open valve C Discharge the line at the manifold connection 5 The system is now ready for final charging O Recharge as follows 1 Refrigeration cycle systems are charged from the High side If the total charge cannot be put in the High side the balance will be put in the suction line through the access valve which you installed as the system was opened 2 Connect the charging cylinder as shown in figure 30B With valve C open discharge the hose at the manifold connection 3 Open valve A and allow the proper charge to enter the system Valve B is still closed 4 If more charge is required the high side will not take it Close valve A 5 With the unit running open valve B and add the balance of the charge a Do not add the liquid refrigerant to the Low side b Watch the Low side gauge allow pressure to rise to 30 Ibs c Turn off valve B and allow pressure to drop d Repeat steps b and c until the balance of the charge is in the system 6 When satisfied the unit is operating correctly use the pinch off tool with the unit still running and clamp on to the pinch off tube Using a tube cutter cut the pinch off tube about 2 inches from the pinch off tool Use sil fos braze and braze pinch off tube closed Turn off the unit allow it
10. electrician Wiring Check the wire connections if loose repair or replace the terminal If the wires are discon nected refer to wiring diagram for identification and replace the wires Check the wire connections If not according to the wiring diagram correct the connections Thermistor Check the TEMP control If not at the lowest number set TEMP control to this setting and restart the unit Check the continuity of the thermistor Replace the thermistor if the circuit is open Rotary Check for continuity refer to the wiring diagram for terminal identification Replace the switch if the circuit is open Thermostat Check the position of knob If not at the coldest setting advance the knob to this setting and restart the unit Check the continuity of the thermostat Replace the thermostat if the circuit is open Capacitor discharge capacitor before Check the capacitor Replace if not within 10 of manufacturer s servicing rating replace if shorted open or damaged Compressor Check the compressor for open circuit or ground If open or grounded replace the compressor Overload Check the compressor overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool and retest Service Manual 26 Troubleshooting Guide COMPLAINT CAUSE REMEDY Compressor cycles on Voltage Check the voltage S
11. to set for a while and then test the leakage of the pinch off connection Disassembly Equipment needed Vacuum pump Charging cylinder Manifold gauge Brazing equipment Pin off tool capable of making a vapor proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve AUGE CONDENSER COMPOUND G NS HIGH PRESSURE SIDE MANIFOLD GAUGE B CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR LOW PRESSURE SIDE COMPRESSOR EXTERNAL VACUUM PUMP CHARGING CYLINDER Figure 30A Pulling Vacuum Figure 30B Charging Service Manual 15 Schematic Diagram n Schematic Diagram Circuit Diagram MODEL TOUCH amp REMOTE CONTROL TYPE MODEL POWER INPUT WH BL MAIN P W B ASSY WIRING DIAGRAM LOCATION NO DESCRIPTION POWER CORD ASSEMBLY QTY PER SET 1 FAN MOTOR 1 COMPRESSOR 1 DISPLAY P W B ASSEMBLY MAIN P W B ASSEMBLY THERMISTOR CAPACITOR 1 gt OWERLOAD PROTECTOR 16 Room Air Conditioner Schematic Diagram C ron Elect EENES os at os ASE 700 elie 1 41 m 469 ao azoo 2 aio 9510 dSIG NO
12. L gt The thermostat monitors room temperature to maintain the desired temperature The thermostat can be set between 60 F 86 F 16 C 30 C The unit takes an average of 30 minutes to adjust the room temperature by 1 F OPERATION MODE SELECTOR Select cooling mode to cool the room Select Money Saver mode for energy saving operation Select fan mode for basic ventilating fan operation Select dry mode for dry operation FAN SPEED SELECTOR For increased power while cooling select a higher fan speed 3 speeds High Low Med ON If the unit is off use Timer to set number of hours before unit starts Push Timer button to advance setting from 1hr 2hrs 12hrs maximum OFF You will usually use shut off time while you sleep If unit is running use Timer to set number of hours until shut off For your sleeping comfort once Time is set the temperature setting will rise 2 F after 30min and once agaain after 30min Push Timer button to advance setting from 1hr 2hrs 12hrs maximum 6 AUTO SWING This button can automatically control the air flow direction left right 7 REMOTE CONTROL SENSOR Inserting the Remote Control Batteries 1 Push out the cover on the back of the remote control with your thumb 2 Pay attention to polarity and 3 Reattach the cover insert two new AAA 1 5V batteries 9 Room Air Conditioner NOTE Do not use rechargeable batteries Make sure that
13. ay cause failure and electric shock Service Manual 3 Safety Precautions Plug in the power plug Do not operate or stop the Do not damage or use an properly unit by inserting or pulling unspecified power cord out the power plug Otherwise it will cause e It will cause electric shock It will cause electric shock or electric shock or fire fire fire CA umb ADS SER LY 4 M wb Do not modify power cord Use the air conditioner on a Always plug into a length single outlet circuit see page 7 grounded outlet Do not share the outlet with other appliances e It will cause electric shock or It will cause electric shock No grounding may cause fire fire electric shock Ventilate before operating air not use the socket if itis not operate with wet conditionerwhen gas goes loose or damaged hands or in damp out environment lt may cause explosion fire may cause fire and electric It will cause electric shock and burn shock 4 Room Air Conditioner Safety Precautions If water enters the product turn off the the Do not clean the air conditioner with water power switch of the main body of appliance Contact service center after taking the power plug out from the socket It will cause electric shock or failure of Water may enter the unit and degrade the machine insulation It may cause an electric shock CAUTION Never touch the
14. e loose terminal Capacitor Discharge Test capacitor capacitor before testing Replace if not within 10 of manufacturer s rating Replace if shorted open or damaged Will not rotate Fan blade hitting shroud or blower wheel hitting scroll Re align assembly Units using slinger ring condenser fans must have 0 22 0 25 inch clearance to the base If necessary shim up the bottom of the fan motor with mounting screw s Check fan motor bearings if motor shaft will not rotate replace the motor Fan motor runs Revolves on overload Check voltage See limits on this page If not within limits call an electrician Test capacitor Check bearings Does the fan blade rotate freely If not replace fan motor Pay attention to any change from high speed to low speed If the speed does not change replace the motor 25 Room Air Conditioner Troubleshooting Guide COMPLAINT Fan motor noise CAUSE REMEDY Fan If cracked out of balance or partially missing replace it Blower If cracked out of balance or partially missing replace it Loose set screw Tighten it Worn bearings If knocking sounds continue when running or loose replace the motor If the motor hums or noise appears to be internal while running replace motor Compressor will not run fan motor runs Voltage Check voltage See the limits on the preceding page If not within limits call an
15. ee the limits on the overload preceding page If voltage is not within these limits call an electrician Overload Check overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool and retest Compressor cycles on Fan motor If not running determine the cause Replace if overload required Condenser air flow Remove the cabinet inspect the interior surface restriction of the condenser If restricted clean carefully with a vacuum cleaner do not damage fins or brush Clean the interior base before re assembling Condenser fins If the condenser fins are closed over a large damaged area on the coil surface head pressures will increase causing the compressor to cycle Straighten the fins or replace the coil Capacitor Test the capacitor Wiring Check the terminals If loose repair or replace Refrigeration system Check the system for a restriction Insufficient cooling Air filter If restricted clean or replace Unit undersized Determine if the unit is properly sized for the area to be cooled Excessive noise Blower or fan Check the set screw or clamp If loose or miss ing correct If the blower or fan is hitting scroll or barrier rearrange the air handling parts Copper tubing Remove the cabinet and carefully rearrange the tubing not to contact the cabinet compressor shroud and barrier 27 Ho
16. istor across the capacitor terminals 8 Remove the 2 screws which fasten the control box See Figure 19 9 Pull the control box forward completely 10 Re install the components by referring to the removal procedure above See Figure 19 EHHH a a ee a a ee aN NY Figure 19 Service Manual 10 Disassembly 1 Remove the front grille Remove the cabinet Remove the control box Remove the 3 screws which fasten the brace Remove the brace Remove the 2 screws which fasten the evaporator Move the evaporator forward and pulling it upward 10 11 12 13 14 11 Move the evaporator to the left carefully Pull out the hook of orifice by pushing the tabs and FAN AND SHROUD Remove the cabinet Remove the brace Remove the 3 screws which fasten the condenser Remove the clamp which secures the fan Remove the fan and then pull out the shroud N Re install by referring to the removal procedure AIR GUIDE AND BLOWER nC gt 27 NS lt slightly See Figure 20 remove it See Figure 21 Remove the clamp with a hand plier which secures the blower Remove the blower Remove the 4 screws which fasten the air guide from the barrier Move the air guide backward
17. lacing the refrigeration cycle be sure to Discharge the refrigerant system using a Freon recovery System If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the Leave the valve in place after servicing the system 2 After discharging the unit completely remove the desired component and unbraze the pinch off tubes 3 Solder service valves into the pinch off tube ports leaving the valves open 4 Solder the pinch off tubes with Service valves 5 Evacuate as follows 1 Connect the vacuum pump as illustrated figure 30A 2 Start the vacuum pump slowly open manifold valves A and B with two full turns counterclock wise and leave the valves open The vacuum pump is now pulling through valves A and up to by means of the manifold and entire system CAUTION If high vacuum equip ment is used just crack valves A and B for a few minutes then open slowly with the two full turns counter clockwise This will keep oil from foaming and being drawn into the vacuum pump 3 Operate the vacuum pump vaccum for 20 to 30 minutes until 600 microns of vaccum is obtained Close valves A and B and observe vacuum gauge for a few minutes A rise in pres sure would indicate a possible leak or moisture 14 Room Air Conditioner Figure
18. metal parts of the unit Do not block the inlet or outlet when removing the filter They are sharp and may cause injury It may cause failure of appliance or performance deteriorate Ensure that the outer caseis not damaged Be cautious not to touch the sharp edges by age orwear when installing Leaving it damaged couldresult in the air It may cause injury conditioner falling out of the window creating a safety hazard Service Manual 5 Dimensions Dimensions A This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the A air conditioner This symbol indicates special notes 525 20 116 470 18 7 2 353 13 7 8 6 Room Air Conditioner Specfications Product Specifications MODELS ITEMS CP10E10 CP12E10 POWER SUPPLY 10 115 60Hz COOLING CAPACITY Btu h 10 000 12 000 INPUT W 920 1 110 RUNNING CURRENT A 85 10 2 E E R BTU W h 10 8 OPERATING INDOOR 26 7 DB 19 4 WB CONDITION OUTDOOR CO 35 DB 23 9 0 REFRIGERANT R 22
19. n the compressor 6 Remove the compressor See Figure 25 7 Re install the components by referring to the removal procedure above Disassembly VERRE Figure 23 lt D D D 45 A Figure 24 D D D D D D 45 53 Figure 25 Service Manual 12 Disassembly MODEL TOUCH amp REMOTE CONTROL MODEL 1 2 3 AR T ona gt Remove the control box Remove the screw which fasten control panel from control box Remove the screw which located in the front Open the bottom side of control box Remove the screw and the clamp which fastens the capacitor Disconnect all the leads of capacitor terminals Re install the components by referring to the removal procedure above See Figure 26 POWER CORD Remove the control box Open the control box Disconnect the grounding screw from the control box Disconnect the 2 receptacles Remove a screw which fastens the clip cord See Figure 27 Remove the power cord Re install the component by referring to the above removal procedure above Use only one ground marked hole for ground connection If the supply of this appliance is damaged it must be replaced by the special cord The special cord means the cord which has the same specification marked on the supply cord attached at
20. nne 18 Troubleshooting Guide tecto t dcs in peatones Mee ae 19 Piping SyStelTi ip oA RA bebo po e D date 19 AL DLL C A at UE 20 Exploded View 52 5 n heo tien t fce trae c E vl ad 28 Replacement Parts List ec d e rt e P 29 2 Room Air Conditioner Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage the following instructions must be followed Incorrect operation due to ignoring instructions will cause harm or damage The seriousness is classified by the following indications A WARNING This symbol indicates the possibility of death or serious injury CAUTION This symbol indicates the possibility of injury damage to property only Meanings of symbols used in this manual are as shown below 9 Be sure not to do uL Be sure to follow the instruction A WARNING Always install the expansion panel s Do not place the power cord near a heater Improper assembly or installation may cause It may cause fire and electric shock incorrect operation including injury fire and electric shock hazards Do not use the power cord near flammable Do not disassemble or modify products gas or combustibles such as gasoline benzene thinner etc may cause explosion or fire It m
21. om Air Conditioner Exploded View E Exploded Vie w Replacement Parts ist LocNo 130410 349001 130910 135312 135303 135500 147581 147582 149980 _ 67303103 67303105 Shroud 152302 6730438 67304308 Filter Mech 238310 67500143 67500143 Escutcheon 567480 264100 267110 249950 237200 268711 1 268711 2 67307622 67307622 PWB PCB Assy Main 146812 67300902 67300902 Swing Louver Motor woczz 2 349600 67303607 67303607 Bracket Motor 29 Room Air Conditioner Use Factory Certified Parts a a rriedrich FRIEDRICH AIR CONDITIONING CO Visit our web site at www friedrich com Post Office Box 1540 4200 N Pan Am Expressway San Antonio Texas 78295 1540 210 357 4400 FAX 210 357 4490 CP10 CP12 SVC PARTS 2008 07 08
22. panel Check control panel setting Y Fan only fails to start Improper wiring Defect of fan motor capacitor Compressor fails only to start Improper thermistor Drop of power voltage x setting Defect of compressor Loose terminal capacitor connection Irregular motor Capacitor check 4 Improper wiring resistance Irregular motor insulation Q Replacement of fan motor Regular but fails to start Replacement of compressor Replacement Irregular motor resistance Irregular motor insulation Q Locking of piston metal Replacement of compressor Motor damaged 21 Room Air Conditioner MODEL BG8000ER WG8000RY4 WG1000RY4 ELECTRIC PARTS TROUBLESHOOTING GUIDE Possible Trouble 1 The unit does not operate NO Troubleshooting Guide Is the Trans input power AC 115V YES Is the Trans output power Is shorted the Trans output about AC 14V Check the Fuse Check the wiring diagram NO Check the Main P W B pattern Is output Voltage of ICO1D NO gt Exchange the Trans Exchange 0020 0050 DC 12V Is output Voltage of ICO2D Ne Exchange IC01D Exchange ICO2D DC 5V Is the reset circuit all right NO The No 14 of Micom is 5V NO connection between e E
23. the unit Figure 26 Figure 27 Refrigerating Cycle the valve in place after servicing the system 1 CONDENSER 1 2 3 Remove the cabinet Remove the 3 screws which fasten the brace Remove the 3 screws which fasten the condenser and shroud After discharging the refrigerant completely unbraze the interconnecting tube at the condenser connections Remove the condenser carefully Re install the component by referring to notes See Figure 28 CAUTION Discharge the refrigerant system using a Freon Recovery System If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the Freon Leave M s NE a Figure 28 Service Manual 13 Disassembly 2 EVAPORATOR Remove the cabinet Remove the 2 screws which fasten the evaporator Move the evaporator sideways carefully After discharging the refrigerant completely unbraze the interconnecting tube at the evaporator connections 5 Remove the evaporator carefully 6 Re install the component by referring to notes See Figure 29 3 CAPILLARY TUBE 1 Remove the cabinet 2 After discharging the refrigerant completely unbraze the interconnecting tube at the capillary tube 3 Remove the capillary tube 4 Re install the component by referring to notes WD Replacement of the refrigeration cycle 1 When rep
24. xchange Main and Display all right YES NO Connect connector a exactly Check the P W B Is the voltage No 18 of Micom DC 5V Ses Exchange Main P W B 5 Service Manual 22 Troubleshooting Guide Possible Trouble 2 The compressor does not operate Is Temp setting set lower than Roo Temp 0 5 C Set the Temp setting to lower Temp Is the voltage No 10 of ICO1M OV Is the voltage 0 7 of Is the Unit for 3 minutes NO ICO1M DC 5V Check the RY COMP Exchange 01 Wait 3 Minutes Check the wiring Diagram Exchange MAIN P W B Ass Possible Trouble 3 The compressor always operate Is the wire connection of NO RY COMP all right pes Check the RY COMP Connect LEAD Wire to RY COMP again Possible Trouble 4 Fan does not operate Is the voltage NO 1 or 4 of ICO1M DC 5V NO gt Exchange ICO1M Is the voltage NO 13 or 16 of ICO1M OV NO gt Exchange ICO1M Check the RY Hi or RY Lo Check the wiring diagram 23 Hoom Air Conditioner Troubleshooting Guide Possible Trouble 5 Romote controller does not operate Is the voltage of Battery about over 2 3V
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