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SERVICE MANUAL Bottom Mount Freezer Refrigerators

1. Evaporator Freezer Air Supply Grille Evaporator Freezer Return Air Through Louvers At Bottom Of Evaporator Cover 38 2007 Viking Preferred Service Service Procedure Machine Compartment Air Flow Condenser Fan Assembly Condenser 2007 Viking Preferred Service 39 Water Dispenser 5 16 O D Plastic Tubing Routed Through x Conduit oe K Filter Water Dispenser a AN Water a Reservoir Plastic Tubing 5 16 O D 1 4 O D Plastic Tubing 40 2007 Viking Preferred Service Disassembly Procedure To avoid risk of electrical shock personal injury or death disconnect power to unit before servicing unless testing requires power Refrigerator Section Light Bulb Removal To avoid risk of burners wear gloves when replacing light bulb Condition Requirements Door Opened 1 Slide bulb cover to rear to release it from holding tabs 2 Remove light bulb 3 Replace bulb with appliance bulb no greater than 40 watts Refrigerator Section Light Bulb Socket Removal Condition Requireme
2. SERVICE MANUAL Bottom Mount Freezer Refrigerators Models VCBFO36RSS VCBFO36LSS DDBFO36RSS DDBFO36LSS VCFF036SS DDFF036SS 2007 Viking Preferred Service 1803 Hwy 82 West e Greenwood Mississippi e 38930 USA e 662 455 1200 Important Information SAVE THESE INSTRUCTIONS REVIEW ALL SERVICE INFORMATION IN THE APPROPRIATE SERVICE MANUAL AND TECHNICAL SHEETS BEFORE BEGINNING REPAIRS Pride and workmanship go into every product to provide our customers with quality appliances It is possible however that during the lifetime of a product service maybe require Products should be serviced only by a qualified authorized service technician who is familiar with the safety procedures required to perform the repair and is equipped with the proper tools parts testing instruments and the appropriate service manual Safety Information We have provided many important safety messages throughout this manual and on the product Always read and obey all safety statements To properly identify a safety statements look for the following safety alert symbol A This symbol alerts personnel to hazards that can many different types of altering messages All safety messages will be preceded by a safety alert symbol and the word DANGER WARNING or CAUTION amp DANGER Immediate hazards which WILL result in severe personal injury or death Hazards or unsafe practices which COULD result in severe personal injury or
3. unless testing requires power Access to Machine Compartment Condition Requirements None 1 Remove seven screws and cover from the unit Power Cord Machine Compartment Cover 3 Reverse procedure for installation Water Filter Assembly Removal Condition Requirements Water Filter Removed Access to Machine Compartment 1 Remove filter cover by pulling rear left side of cover to the left to release cover from holding pin 2 Filter head can be released from holding bracket by opening tabs on left side filter head and pulling downward and to your left to release filter head a _ A Filter Head Filter Cover 3 Tubing needs to be disconnected from water valve in the machine compartment See Water Valve removal 4 After tubing is loose from water valve pull the filter head and tubing out the front of unit NOTE Make sure to note tubing end colors when reinstalling new head and tubing assembly 5 Reverse procedure for installation 2007 Viking Preferred Service on Water Tank Assembly Removal Condition Requirements Drawers and Shelves Removed Access to Machine Compartment 2 Remove power cord from cover 1 Remove two screws holding water tank to rear bulkhead Disconnect tube from connector Tubing needs to be disconnected from water valve in the machine compartment See water valve removal From inside of fresh food compartment pull tubing up and out of cabinet to comple
4. 45 Disassembly Procedure To avoid risk of electrical shock personal injury or death disconnect power to unit before servicing unless testing requires power Evaporator Fan Motor Assembly Condition Requirements Access to Evaporator Section 1 Remove two screws from fan motor mount 2 Disconnect evaporator fan wiring and ground from motor Screws LLC 3 Reverse procedure for installation Evaporator Fan Motor and Fan Blade Condition Requirements Evaporator Fan Motor Assembly Removed 1 Remove evaporator fan blade by pulling blade off evaporator fan shaft 2 Remove fan motor by squeezing motor retainer clips together to release retainer 3 Remove retainer and slide motor out Shroud Assembly NN Evaporator Fan Motor Evaporator Fan Clip 4 Reverse procedure for installation 46 Defrost Thermostat Removal Condition Requirements Access to Evaporator Section 1 Cut wires to defrost thermostat and unclip thermostat from evaporator coil Defrost Thermostat 2 Replace thermostat and use wire nut s included in defrost thermostat kit 3 Reverse procedure for installation Defrost Heater Removal Condition Requirements Access to Evaporator Section 1 Disconnect defrost heater connectors from harness Remove two screws from evaporator coil 3 Grip evaporator tubing at left and right sides and tug evaporator sharply forward Evaporator will pop out of plastic cl
5. Leaks in post condenser loop are rare because loop is a one piece copper tube For minute leaks 1 Separate condenser from rest of refrigeration system and pressurize condenser up to a maximum of 235 PSI with a refrigerant and dry nitrogen combination 2 Recheck for leaks To avoid severe personal injury or death from sudden eruption of high pressures gases observe the following Protect against a sudden eruption if high pressures are required for leak checking Do not use high pressure compressed gases in refrigeration systems without a reliable pressure regulator and pressure relief valve in the lines Disconnect power to the refrigerator Remove relay cover and disconnect leads Check resistance across terminals 2 and 3 with an ohmmeter e Normal 3 to 12 ohms e Shorted 0 ohms e Open infinite ohms on gt Ice Maker See Ice Maker section for service information 2007 Viking Preferred Service 23 Component Testin Component Description Test Procedures ECM Condenser fan moves cooling air across Check resistance across motor If no resistance condenser condenser coil and compressor body across motor replace motor motor Condenser fan motor is in parallel circuit with compressor Evaporator fan Evaporator fan moves air across 1 Disconnect power to unit motor evaporator coil and throughout 2 Disconnect fan motor leads refrigerator cabi
6. open to CL closed Service Test 174 Water Actuator BM Internal Dispenser Display shows the state of the Internal Dispenser ON or OFF Service Test 181 Keypad Operation Display shows a numeric or letter display indicating the last key pressed NOTE REFRIGERATOR TEMP UP DOWN buttons have no effect when pressed and FREEZER TEMP UP DOWN buttons remain operational Service Test 182 LED Indicator Operation Press the REFRIGERATOR TEMP UP button to show operation of LED Indicators All LED Indicators will flash Press REFRIGERATOR TEMP DOWN and LED will stop flashing Service Test 191 Ice Maker Water Valve Display shows the state of the ice maker water valve On or OFF Service Test 201 Mullion Heater 100 Operation Press the Refrigerator Up keypad and Refrigerator Down keypad to toggle Mullion Heater On and Off Service Test 202 Defrost Operation Press the REFRIGERATOR TEMP UP button and REFRIGERATOR TEMP DOWN button to toggle defrost operation to minimum time between defrosts on and off Service Test 203 Show Temperature Set Points Press the REFRIGERATOR TEMP UP button and REFRIGERATOR TEMP DOWN button to toggle display showing actual temperatures OFF position or showing temperature set points On position Service Test 211 Refrigerator Temperature Adjustment Press the REFRIGERATOR TEMP UP button and REFRIGERATOR TEMP DOWN button to adjust
7. 8 The decimal point indicates the selected digit Press the FREEZER TEMP UP button to select the next digit 9 Once the desired program code is entered press and hold the FREEZER TEMP DOWN button until the program code begins flashing indicating it has been saved NOTE If you attempt to enter an invalid program code the control will not save the new code but will beep The unit will NOT run with a program of 0000 Once the Program has been saved the Programming Mode is exited by closing the refrigerator door If the new code is incorrect this process should be repeated after closing the refrigerator door The Programming Mode can be exited at any time by closing the refrigerator door or will exit if unattended for four minutes 2007 Viking Preferred Service Defrost Operation The Control Board adapts the compressor run time between defrosts to achieve optimum defrost intervals by monitoring the length of time the defrost heater is on After initial power up defrost interval is 4 hours compressor run time Defrost occurs immediately after the 4 hours Forced Defrost Mode The Forced Defrost function is performed using the FREEZER TEMP display and REFRIGERATOR TEMP buttons Enter the Forced Defrost Mode by performing the following sequence of events 1 Press and hold the DOOR OPEN ALARM button 2 Press and hold the REFRIGERATOR TEMP DOWN button 3 Release the DOOR OPEN ALARM button and wait 3 seconds Fd
8. Connections to be brazed must be properly sized free of rough edges and clean Generally accepted brazing materials are e Copper to copper joints SIL FOS alloy of 15 percent silver 80 percent copper and 5 percent phosphorous Use without flux Recommended brazing temperature is approximately 1400 F Do not use for copper to steel connection e Copper to steel joints SILVER SOLDER alloy of 30 percent silver 38 percent copper 32 percent zinc Use with fluoride based flux Recommended brazing temperature is approximately 1200 F e Steel to steel joints SILVER SOLDER see copper to steel joints e Brass to copper joints SILVER SOLDER see copper to steel joints e Brass to steel joints SILVER SOLDER see copper to steel joints 35 Service Procedure Replacement Service Compressor HFC134a service compressors will be charged with ester oil and pressurized with dry nitrogen Before replacement compressor is installed pull out 1 rubber plug A pop from pressure release should be heard If a pop sound is not heard do not use compressor Positive pressure in compressor is vital to keep moisture out of ester oil Do not leave compressor open to atmosphere for more than 10 minutes Compressor Testing Procedures To avoid death or severe personal injury never use oxygen air or acetylene for pressure testing or clean out of refrigeration system Use of oxygen air or acetylene may result in violent explosion
9. 1 Cut drier out of system using the following procedure Do not unbraze drier 2 Applying heat to remove drier will drive moisture into the system 3 Score capillary tube close to drier and break 4 Reform inlet tube to drier allowing enough space for large tube cutter 5 Cut circumference of drier 1 4 below condenser inlet tube joint to drier 6 Remove drier 24 2007 Viking Preferred Service Component Testing Component Description Test Procedures Drier cont 7 Apply heat trap paste on post condenser tubes to protect grommets from high heat 8 Unbraze remaining part of drier Remove drier from system 9 Discard drier in safe place Do not leave drier with customer If refrigerator is under warranty old drier must accompany warranty claim To avoid death or severe personal injury cut drier at correct location Cutting drier at incorrect location will allow desiccant beads to scatter If spilled completely clean area of beads Evaporator defrost heater Activated when defrost thermostat defrost timer and freezer control complete circuit through heater Check resistance across heater To check defrost system 1 Thermocouple defrost thermostat and plug refrigerator into wattmeter 2 Turn into defrost mode Wattmeter should read specified watts according to Technical Data Sheet 3 When defrost thermostat reaches specified temperature 5 F see Technical Data Sheet
10. Ensure compressor overload are below trip temperature before testing Replace if necessary Freezer and refrigerator sections too warm Temperature controls set too warm Reset temperature controls Poor door seal Level cabinet Adjust hinges Replace gasket Dirty condenser or obstructed grille Check condenser and grille Clean Faulty control Test control Replace if failed Refrigerant shortage or restriction Check for leak or restriction Repair evacuate and recharge system 14 2007 Viking Preferred Service Troubleshooting Chart Symptom Possible Cause Corrective Action Refrigerator section too Excessive door opening Consumer education warm Overloading of shelves Consumer education Warm or hot foods placed in cabinet Consumer education Cold control set too warm Set control to colder setting Poor door seal Level cabinet Adjust hinges Replace gasket Refrigerator airflow Check damper is opening by removing grille With door open damper should open Replace if faulty Interior light remains on Check switch Replace if necessary Faulty condenser fan or evaporator fan Check fan and wiring Replace if necessary Faulty compressor Replace compressor Refrigerator section too cold Refrigerator temperature control set too cold Adjust refrigerator temperature control Refrigera
11. Oxygen may explode on contact with oil and acetylene will spontaneously explode when under pressure Refer to Technical Data Sheet Temperature Relationship Chart for operating watts test points and temperature relationship test for unit being tested e Temperature testing is accomplished by using 3 lead thermocouple temperature tester in specific locations Test point T 1 is outlet on evaporator coil and T 2 is inlet Test point T 3 is suction tube temperature midway between where armaflex ends and suction port of compressor approximately 12 inches from compressor e Thermocouple tips should be attached securely to specified locations e Do not test during initial pull down Allow one off cycle or balanced temperature condition to occur before proceeding with testing e Refrigerator must operate minimum of 20 minutes after thermocouples are installed e Turn control to colder to obtain required on time e Wattage reading must be recorded in conjunction with temperature test to confirm proper operation e Suction and head pressures are listed on Temperature and Relationship Chart Normally these are not required for diagnosis but used for confirmation on systems which have been opened 36 Drier Replacement Before opening refrigeration system recover HFC134a refrigerant for safe disposal Every time sealed HFC134a system is repaired drier filter must be replaced Cut drier out of system by completing the f
12. thermostat should interrupt power to heater refrigerant discharged from capillary to expand into refrigerant gas Expansion cools evaporator tube and fin temperature to approximately 20 F transferring heat from freezer section to refrigerant Passing through suction line to compressor the refrigerant picks up superheat a relationship between pressure and temperature that assures complete vaporization of liquid refrigerant as the result of capillary tube soldered to suction line Refrigerant gas is pulled through suction line by compressor completing refrigeration cycle 2007 Viking Preferred Service Thermostat Thermostat is in a series circuit with Test continuity across terminals terminal 2 of defrost timer and defrost With power off and evaporator coil below freezing heater Circuit complete if evaporator fan thermostat should show continuity when checked motor operates when cold with ohmmeter See Heater evaporator defrost Controls the circuit from freezer section for additional tests thermostat through defrost terminator to After defrost thermostat opens thermostat remains defrost heater Opens and breaks circuit open until end of defrost cycle and refrigerator starts when thermostat senses preset high cooling again Defrost thermostat senses a preset temperature low temperature and resets closes Evaporator Inner volume of evaporator allows liquid Test for leaks in evaporator with el
13. F Heat Load A greater heat load can result from the addition of more than normal supply of foods such as after doing the weekly shopping Other items contributing to an additional heat load would be excessive door openings poor door sealing interior light remaining on etc An increase in heat being absorbed by the refrigerant in the evaporator will affect the temperature and pressure of the gas returning to the compressor Compartment temperatures power consumption discharge and suction pressures are all affected by heat load Pressures will be higher than normal under heavy heat load 2007 Viking Preferred Service System Diagnosis Symptoms of a Restriction Always remember refrigeration cooling occurs on the low pressure side of a partial restriction a total restriction will completely stop the circulation of refrigerant and no cooling will take place Physically feel the refrigeration lines when a restriction is suspected The most common place for a restriction is at the drier filter or at the capillary tube inlet or outlet If the restriction is not total there will be a temperature difference at the point of restriction the area on the evaporator side will be cooler In many cases frost and or condensation will be present A longer time is required for the system to equalize Any kinked line will cause a restriction so the entire system should be visually checked A slight restriction will give the same ind
14. You however should return the Owner Registration Card so that Viking Range Corporation can contact you should any question of safety arise which could affect you Any implied warranties of merchantability and fitness applicable to the above described refrigerator are limited in duration to the period of coverage of the applicable express written limited warranties set forth above Some jurisdictions do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you This warranty gives you specific rights and you may also have other rights which may vary from jurisdiction to jurisdiction Specifications are subject to change without notice For more product information call 1 888 VIKING1 845 4641 or visit our web site at http Awww vikingrange com 2007 Viking Preferred Service 3 Table of Contents Important Information 2 System Diagnosis 25 Safety Information 2 Symptoms of an Overcharge seeeeeeeseeneen 27 General Information c ccceccceceeeeeeeeeeeeeeeeeeeeeeeeeeeeees 6 Symptoms of Air in System 27 Fully Electronic Defrost System 6 Symptoms of Refrigeration Shortage 28 Serial Number Location 6 Symptoms of Low or High Ambient Temperature nstallati Minana 6 Installation 28 DOS OM ehh eeciees tess 6 Heat Load 28 Measuring the Opening 6 Symptoms of a Restriction 29 ESEA
15. appears in left display 4 Press the REFRIGERATOR TEMP DOWN button again Sh appears in right display 5 Press the REFRIGERATOR TEMP DOWN button again to force defrost Fd and Sh will flash in display indicating unit is in defrost Service Test Mode Enter the Service Test Mode by performing the following sequence of events Press and hold the DOOR OPEN ALARM button Press and hold the REFRIGERATOR TEMP UP button Release the DOOR OPEN ALARM button and wait 3 seconds SE appears in left display Press the REFRIGERATOR TEMP UP button again Display will show 001 in left display and numeric or dashes in right display This test is for factory use only 6 Press FREEZER TEMP UP button or FREEZER TEMP DOWN button to toggle through Service Test numbers 17 Service Test 101 Defrost Heater amp Defrost Circuit Press the REFRIGERATOR TEMP UP button and REFRIGERATOR TEMP DOWN button to energize or de energize the defrost circuit The display will read OFF when de energized OP when energized with open defrost thermostat and CL when energized with closed defrost thermostat Service Test 102 Compressor Condenser Fan Press the REFRIGERATOR TEMP UP button and REFRIGERATOR TEMP DOWN button to toggle Compressor Condenser fan On and OFF Service Test 112 Freezer Fan Press the REFRIGERATOR TEMP UP button and REFRIGERATOR TEMP DOWN button to toggle Freezer Fan On a
16. death Hazards or unsafe practices which COULD result in minor personal injury product or property damage All safety messages will identify the hazard tell you how to reduce the chance of injury and inform you what can happen if the instructions are not followed To avoid risk of serious injury or death repairs should not be attempted by unauthorized personnel VIKING will not be responsible for any injury or property damage from improper service procedures If performing service on your own product you must assume responsibility for any personal injury or property damage which may result To locate an authorized servicer call Viking Customer Service Phone No 1 888 845 4641 Address your written correspondence to Viking Preferred Service 1803 HWY 82 West Greenwood MS 38930 2007 Viking Preferred Service Important Information Freestanding Bottom Mount French Door Bottom Mount Refrigerator Freezer Warranty TWO YEAR FULL WARRANTY Freestanding refrigerators freezers and all of their components and accessories except as detailed below are warranted to be free from defects in material or workmanship under normal household use for a period of two 2 years from the date of original retail purchase Viking Range Corporation warrantor agrees to repair or replace at its option any part which fails or is found to be defective during the warranty period Painted and decorative items are warranted to fr
17. door from closing properly Door gaskets not sealing properly Clean door gaskets Ice maker is not producing enough ice or ice is malformed Ice maker has just been installed or a large amount of ice has been used Wait 24 hours for ice production to begin or for ice maker to restock after emptied Water pressure is too low Check water pressure requirements Water filter is clogged or needs to be changed Change water filter 12 2007 Viking Preferred Service Troubleshooting Chart Symptom Possible Cause Corrective Action Ice maker is not producing ice Ice maker arm is up Confirm ice maker arm is down Household water supply is not reaching water valve See Connecting the Water Supply Copper tubing has kinks Turn off water supply and remove kinks If kinks cannot be removed replace tubing Water pressure is too low Check water pressure requirements Check freezer temperature Adjust temperature Ice bin is not installed properly Check position of ice bin Improper water valve was installed See Connecting the Water Supply Water filter indicator light is red Water filter needs to be replaced Change water filter Filter indicator sensor needs to be reset See Filter Status Indicator Light Symptom Possible Cause Corrective Action Water flow is slower than normal Water
18. level raise or lower the opposite door by turning roller adjustment screw counterclockwise 3 Check with level to verify 4 tilt to the back for proper door closure 4 lf refrigerator is aligned and stable replace toe grille 2007 Viking Preferred Service Operation General Information FREEZER ORDER REPLACE es oe o o es o HIGH DOOR ml wn VACATION TEMP OPEN ul INDICATOR MODE ALARM ALARM HOLD 3 SECONDS TO RESET e REFRIGERATOR J TEMP Climate Controls The control panel is located at the top front of the refrigerator compartment Initial Temperature Setting Temperatures are preset at the factory at 38 F in the refrigerator compartment and 0 F in the freezer compartment Adjusting the Control 24 hours after adding food you may decide that one or both compartments should be colder or warmer If so adjust the control as indicated in the Temperature Control Guide below The first touch of the UP or DOWN buttons shows the current temperature setting The display will show the new setting for approximately three seconds and then return to the actual temperature currently within that compartment Do not change the temperature in either compartment more than one degree at a time Allow temperature to stabilize for 24 hours before making a new temperature adjustment Temperature Control Guide Refrigerator too cold Set the refrigerator control to next higher number by pres
19. mn on 6 Service Procedure 28 Leveling OS cescscessssessesesseesteessestsesseeeeensen 6 Service Equipment 30 TUN Rd ln 7 Leak Testing 30 Climate Controls 7 Testing Systems Containing a Refrigerant Initial Temperature Setting nn 7 charge E EN HR prenne din 30 Adjusting the CONFO een 7 ee Re TEM IDE ani CONOR GUE es ee l Refrigerant Precautions 31 Max lo Hits AR RRRRee 7 Line Piercing VAIVES nn 31 Waler PRES ee rene Open Lines ieee ne 31 Vacation Mode 7 Compressor Operational Test nn 31 Door Open Alarm cccccceeceeeeeeeteeeeeeteeeeeeeeeees 7 Dehydrating Sealed Refrigeration System 32 OR EME ARMES FI SHHICtIOMS sos odsu sceertviosacsdshecesssstesdeaubstecsbecteres 32 Max E S lo EE E 8 SYMP OMS nn 32 User iplerenecs sac dav unes O E 8 Testing for Restrictions nn 32 Temperatura D PAE Qi se 8 Evacuation and Charging 33 PE AE aie o Gass entsie seers 8 EVACUATION ossis Eea 33 OA N eine ea emanec es i GAN QUING PEPA T 34 Warm GADING SUNAGES mnt 8 Refrigerant Charge cccccccsesceeeeeeeseeeeesseeeeeees 34 AuloMmAlie ICO Maker sites 8 HEC 1244 Service Intatnation 2e 34 Water Dispensar PET E E E ae 8 Health Safety and Handling 34 Care and Cleaning ccccccceeseeceeeeeeeeeeeneeeeeeeeees 9 Comparison of CFC12 and HFC134
20. near normal If restriction is on high side suction pressure will be ina vacuum and head pressure will be higher than normal during pump out cycle Refrigeration occurs on low pressure side of partial restriction There will be a temperature difference at the point of restriction Frost and or condensation will be present in most case at the point of restriction Also system requires longer to equalize Slight or partial restriction can give the same symptoms as refrigerant shortage including lower than normal back pressure head pressure wattage and warmer temperatures Total restriction on the discharge side of compressor when restriction is between compressor and first half of condenser results in higher than normal head pressure and wattage while low side is being pumped out 32 Testing for Restrictions To determine if a restriction exists 1 Attach gauge and manifold between suction and discharge sides of sealed system 2 Turn unit on and allow pressure on each side to stabilize Inspect condenser side of system Tubing on condenser should be warm and temperature should be equal throughout no sudden drops at any point along tubing e f temperature of condenser tubing is consistent throughout go to step 4 e f temperature of condenser tubing drops suddenly at any point tubing is restricted at point of temperature drop if restriction is severe frost may form at point of restriction and extend down in dire
21. not depressed Switch button is depressed AN NO terminals are open Water button depressed NO terminals are closed 26 2007 Viking Preferred Service System Diagnosis LE Re T1 INLET T2 OUTLET T3 SUCTION WATTAGE CONDITION VARIATION VARIATION TEMPERATURE TEMPERATURE TEMPERATURE VARIATION FROM FROM VARIATION VARIATION FROM VARIATION FROM NORMAL NORMAL FROM NORMAL NORMAL FROM NORMAL NORMAL Refrigerant Increase Increase Warmer Warmer Colder Increase Overcharge Sh rtade of Decrease or tag Decrease Increase See Colder Warmer Warmer Decrease Refrigerant T ext Partial Decrease or TE Decrease Increase See Colder Warmer Warmer Decrease Restriction T ext Air in System Near Normal Increase Warmer Warmer Warmer Increase Low Ambient Installations High Decrease Decrease Colder Warmer Warmer Decrease Ambients the Reverse Additional Increase Increase Warmer Warmer Warmer Increase Heat Load Inefficient Normal or Warmer or Compressor Increase Decrease Colder Warmer Warmer Decrease Symptoms of an Overcharge Above normal freezer temperatures Longer than normal or continuous run Freezing in refrigerator especially on forced air meatkeeper models Higher than normal suction and head pressure Higher than normal wattage Symptoms of Air in System This can result from a low side leak or improper servicing If a leak should occur on the low side the temperature co
22. not remove green ground wire from hinge 4 Remove top hinge along with door 5 Remove screw and bottom hinge 6 Reverse procedure for installation 49 NOTES 50 2007 Viking Preferred Service
23. resistor NOTE Not all units have run capacitor 3 Remove leads from compressor terminals 4 Attach test cord to compressor windings e Common lead on test cord attaches to C terminal on compressor e Start lead on test cord attaches to S terminal on compressor e Run lead on test cord attaches to M terminal on compressor 2007 Viking Preferred Service Service Procedure To AC Supply A A Switch SN A Compressor uses Capacitor Attaching Capacitor for Compressor Test 5 Connect a known good capacitor into circuit as shown above For proper capacitor size and rating refer to Technical Data Sheet for unit under test NOTE Ensure test cord cables and fuses meet specifications for unit under test refer to Technical Data Sheet for unit under test 6 Replace compressor protector cover securely 7 Plug test cord into outlet then press and release start cord switch To avoid risk of damage to compressor windings immediately disconnect unplug test cord from power source if compressor does not start Damage to compressor windings occurs if windings remain energized when compressor is not running If compressor runs when direct wired it is working properly Malfunction is elsewhere in system If compressor does not start when direct wired recover system at high side After the system is recovered repeat compressor direct wire test If compress
24. temperature set points 6 to 6 Service Test 212 Freezer Temperature Adjustment Press the REFRIGERATOR TEMP UP button and REFRIGERATOR TEMP DOWN button to adjust temperature set points 6 to 6 Service Test 221 Default Settings Reset Press the REFRIGERATOR TEMP UP button to force to dEF default factory settings 19 Control Board Fahrenheit or Celsius Mode Enter the Fahrenheit or Celsius Mode by performing the following sequence of events 1 Press and hold the DOOR OPEN ALARM button for 6 seconds 2 Press FREEZER TEMP UP button until F_C is in the freezer display 3 Press the REFRIGERATOR TEMP UP button or DOWN button to toggle between F and C in the refrigerator display Show Room Mode Enter or exit the Show Room Mode by performing the following sequence of events 1 Press and hold the DOOR OPEN ALARM button 2 Press and hold FREEZER TEMP UP button 3 Release the DOOR OPEN ALARM button and wait 3 seconds SH appears in left display 4 Press the FREEZER TEMP UP button again On or OFF appears in right display 5 Press the REFRIGERATOR TEMP UP button and REFRIGERATOR TEMP DOWN button to toggle showroom feature On or OFF NOTE Showroom will always be off when first powered up 6 Press the FREEZER TEMP UP button to confirm setting The display will flash the selected setting 20 Sabbath Mode Enter the Sabba
25. two connectors from water valve assembly Mark and disconnect water tubing from water valve assembly Remove screw and water valve from water valve cover plate Water Valve Cover Plate Reverse procedure for installation 47 Disassembly Procedure To avoid risk of electrical shock personal injury or death disconnect power to unit before servicing unless testing requires power Condenser Fan Motor and Blade Removal Condition Requirements Access to Machine Compartment 5 Disconnect connector from condenser motor Remove two screws from mounting brackets attached to motor Remove motor and fan blade out the rear of shroud Remove the retainer nut to remove fan blade Fan Motor Screws Reverse procedure to reassemble Overload Relay Removal Condition Requirements Access to Machine Compartment 1 2 48 Discharge capacitor through a 10 000 ohm resistor Using fingers and standard screwdriver press and pry bale strap off the overload relay capacitor assembly Reverse procedure for installation Compressor Removal Condition Requirements Access to Machine Compartment 1 Remove bale strap which retains overload relay capacitor 2 Pull overload relay capacitor assembly off of compressor terminals 3 Disconnect ground wires attached to compressor 4 Follow reclaiming procedures in Service Procedures section of this manual Overload Capacitor Compr
26. Adjust controls Food temperature is too cold Condenser coils are dirty Clean coils Refrigerator or freezer temperatures are set too high Adjust controls Refrigerator has an odor Odor producing foods should be covered or wrapped The interior needs cleaning Clean interior Food temperature is too warm Door is not closing properly Refrigerator is not level Level refrigerator Check gaskets for proper seal Clean if necessary Check for internal obstructions that are keeping door from closing properly Controls need to be adjusted Adjust controls Condenser coils are dirty Clean coils Rear air grille is blocked Check the positioning of food items Door has been opened frequently or has been opened for long periods of time Reduce time door is open Organize food items efficiently to assure door is open for as short a time as possible Food has recently been added Allow time for recently added food to reach refrigerator or freezer temperature 2007 Viking Preferred Service 11 Troubleshooting Chart Symptom Possible Cause Corrective Action Water droplets form on inside of refrigerator Humidity levels are high or door has been opened frequently Reduce time door is open Organize food items efficiently to assure door is open for as short a time as possible Door gaskets are not sealing p
27. Lift drawer in front and remove from rails 2 Remove glides by pressing in release tab and sliding out the glides 3 Reverse procedure for installation Freezer Drawer Glides Removal Condition Requirements Freezer Drawer Removed 1 Remove three screws and drawer glide from each side of the freezer cavity 2 Reverse procedure for installation Ice Maker Removal Condition Requirements Freezer Drawer Removed NOTE Note position of fill tube before removing ice maker 1 Disconnect ice maker harness from rear bulkhead 2 Loosen two screws that hold ice maker to left side of freezer cavity 3 Remove screw and ice maker from freezer Loosen Connector Icemaker 4 Reverse procedure for installation NOTE Make sure to get fill tube inserted in to fill cup fully when reassembling 2007 Viking Preferred Service Freezer Thermistor Removal Condition Requirements Freezer Drawer Removed 1 Remove thermistor cover from the back freezer panel 2 Cut wire at thermistor and remove thermistor 3 Reverse procedure for installation Access to Evaporator Section Condition Requirements Icemaker Removed Freezer Drawer Glides Removed 1 Remove thermistor cover from the back freezer panel 2 Remove fan cover from back panel by using a screwdriver to release tabs 3 Remove four screws and evaporator cover 4 Remove Icemaker connector from back panel 5 Reverse procedure for installation
28. a Refrigerator Cleaning Chart 9 PR PAS hu 35 Operating Sounds cs cesses tesneeneestesnes 10 SO eeu tease actos cas eo eaeeem eae 35 TFOUDIGSNOOLING sissccesssie tinnesasceceues cxsunenavsceeanssavestenmecnensass 11 Replacement Service Compressor 36 Control BON 280 near iaaii satin 16 Compressor Testing Procedures 36 Programming Mode 17 Drier Replacement 36 Defrost Operation 17 Refrigerant FIOW c csscssssesesestessscssesestessseeceseaees 37 Forced Defrost Mode s ssssestecsesesecsnseeneesens 17 Cabinet Air Fons und ntanuntianss 38 Service Test Mode 17 Machine Compartment Air FIOW 0 c cecsseeeeeeee 39 Fahrenheit or Celsius Mode 20 Water DISONS sn sardines 40 Show Room Mode 20 Sabbath Mode 20 Alarm Enable Mode 20 Component Testing 19 4 2007 Viking Preferred Service Table of Contents Disassembly Procedure 39 Freezer Thermistor Removal 45 Refrigerator Section Light Bulb Removal 41 Access to Evaporator Section 45 Refrigerator Section Light Bulb Socket Removal 41 Evaporator Fan Motor Assembly 45 Electronic Control Board Removal 41 Evaporator Fan Motor and Fan Blade 46 Light Switch Removal 41 Defrost The
29. ants and will leak where other refrigerants would not Swagging tools Flaring tools Tubing cutter Oil for swagging and flaring Copper tubing Process tube adaptor kit ICI appliance grade HFC134a 30 Leak Testing amp DANGER TO AVOID RISK OF SERIOUS INJURY OR DEATH FROM VIOLENT EXPLOSIONS NEVER USE OXYGEN OR ACETYLENE FOR PRESSURE TESTING OR CLEAN OUT OF REFRIGERATION SYSTEMS FREE OXYGEN WILL EXPLODE ON CONTACT WITH OIL ACETYLENE WILL EXPLODE SPONTANEOUSLY WHEN PUT UNDER PRESSURE It is important to check sealed system for refrigerant leaks Undetected leaks can lead to repeated service calls and eventually result in system contamination restrictions and premature compressor failure Refrigerant leaks are best detected with halide or electronic leak detectors Testing Systems Containing a Refrigerant Charge 1 Stop unit operation turn refrigerator off 2 Holding leak detector exploring tube as close to system tubing as possible check all piping joints and fittings NOTE Use soap suds on areas leak detector cannot reach or reliably test Testing Systems Containing No Refrigerant Charge 1 Connect cylinder of nitrogen through gauge manifold to process tube of compressor and liquid line strainer 2 Open valves on nitrogen cylinder and gauge manifold Allow pressure to build within sealed system 3 Check for leaks using soap suds If a leak is detected in a joint do not to attempt to re
30. ction of refrigerant flow in system Go to step 5 3 Visually check system for kinks in refrigeration line which is causing restriction Correct kink and repeat step 2 4 Turn unit off and time how long it takes high and low pressure gauges to equalize e f pressure equalization takes longer than 10 minutes a restriction exists in the capillary tube or drier filter Go to step 5 e f pressure equalization takes less than 10 minutes system is not restricted Check for other possible causes of malfunction 5 Recover refrigerant in sealed system NOTE Before opening any refrigeration system capture refrigerant in system for safe disposal 6 Remove power from unit To avoid risk of personal injury or property damage take necessary precautions against high temperatures required for brazing 7 Remove and replace restricted device 8 Evacuate sealed system 9 Charge system to specification NOTE Do not use captured or recycled refrigerant in units Captured or recycled refrigerant voids any compressor manufacturer s warranty NOTE Charge system with exact amount of refrigerant Refer to unit nameplate for correct refrigerant charge Inaccurately charged system will cause future problems 2007 Viking Preferred Service Evacuation and Charging To avoid risk of fire sealed refrigeration system must be air free To avoid risk of air contamination follow evacuation procedures exactly NOTE Before ope
31. ds OR close the door Temperature Display F_C Change the display to show temperatures in degrees Fahrenheit or degrees Celsius Alarm AL When the Alarm mode is OFF all audible alarms will be disabled until the feature is turned on Sabbath Mode SAB When the Sabbath Mode is On all control lights and the night light will be disabled until the feature is turned OFF This feature does not disable the interior lights Press any pad to restore the control lights Warm Cabinet Surfaces At times the front of the refrigerator cabinet may be warm to the touch This is a normal occurrence that helps prevent moisture from condensing on the cabinet This condition will be more noticeable when the refrigerator is first started during hot weather and after excessive or lengthy door openings Automatic Ice Maker e Discard ice created within first 12 hours of operation to assure system is flushed of impurities e Stop ice production by raising ice maker arm until click is heard e Ice maker will remain in the off position until arm is pushed down e When the ice cubes are ejected it is normal for several cubes to be joined together at the ends They can easily be broken apart The ice maker will continue to make ice until the supply of ice cubes raises the ice maker arm shutting the ice maker off e If the ice is not used frequently the ice cubes will become cloudy shrink stick together and ta
32. e locations and institutional food service locations This warranty extends to the original purchaser of the product warranted hereunder and to each transferee owner of the product during the term of the warranty This warranty shall apply to products purchased and located in the United States and Canada Products must be purchased in the country where service is requested Warranty labor shall be performed by an authorized Viking Range Corporation service agency or representative Warranty shall not apply to damage resulting from abuse accident natural disaster loss of electrical power to the product for any reason alteration improper installation improper operation or repair or service to the product by anyone other than an authorized Viking Range Corporation service agency or representative Warranty shall not apply to damage resulting from indoor units being used in outdoor situations This warranty does not apply to commercial usage This warranty does not cover any food or medicine loss due to product failure Warrantor is not responsible for consequential or incidental damage whether arising out of breach of warranty breach of contract or otherwise Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you Owner shall be responsible for proper installation providing normal care and maintenance providing proof of purchase upon request and mak
33. each Concentrated detergents or solvents Metal or plastic textured scouring pads Vinegar based products Citrus based cleaners Use warm soapy water and a soft clean cloth or sponge Rinse surfaces with clean warm water and dry immediately to avoid water spots To polish and help prevent fingerprints follow with Stainless Steel Magic Spray Door Gaskets Abrasive or harsh cleaners Metal or plastic textured scouring pads Use warm soapy water and a soft clean cloth or sponge Condenser Coil Remove base grille to access Use a vacuum cleaner hose nozzle Condenser Fan Outlet Grille See back of refrigerator Use a vacuum cleaner hose nozzle with brush attachment Accessories Shelves buckets drawers etc A dishwasher Follow removal and installation instructions from appropriate feature section Allow accessories to adjust to room temperature Dilute mild detergent and use a soft clean cloth or sponge for cleaning Use a plastic bristle brush to get into crevices Rinse surfaces with clean warm water Dry glass and clear items immediately to avoid spots 2007 Viking Preferred Service Troubleshooting Chart Operating Sounds Improvements in refrigeration design may produce sounds in your new refrigerator that are different or were not present in an older model These improvements were made to create a refrigerator that is better at preserving food is more energy effici
34. ecently installed Water supply in holding tank has been depleted Allow approximately 12 hours for water in holding tank to chill Water has settled into water lines outside holding tank and has warmed to room temperature Discard first glass of water and refill Particles in water and or ice cubes Carbon dust from water filter cartridge Initial water ejected through cartridge may contain harmless carbon dust flushed from cartridge Particles are safe for consumption Will disappear after the first few uses Concentrations of minerals in water will form particles when water becomes frozen and melts Particles are not harmful and naturally occur in water supplies Unit does not run No power to unit Check for power at outlet Check fuse box circuit breaker for blown fuse or tripped breaker Replace or reset Faulty power cord Check with test light at unit if no circuit and current is indicated at outlet replace or repair Low voltage Check input voltage for proper voltage Take appropriate action to correct voltage supply problem Faulty motor or temperature control Check all connections are tight and secure Replace if necessary Faulty relay Check relay Replace if necessary Faulty compressor Check compressor motor windings for opens shorts Perform compressor direct wiring test Replace if necessary Faulty overload Check overload for continuity
35. ectronic leak detector or with soap solution Compressor oil is circulated with refrigerant check for oil when checking for leaks For minute leaks 1 Separate evaporator from rest of refrigeration system and pressurize evaporator up to a maximum of 140 PSI with a refrigerant and dry nitrogen combination 2 Recheck for leaks To avoid severe personal injury or death from sudden eruptions of high pressure gases observe the following e Protect against a sudden eruption if high pressures are required for leak checking Do not use high pressure compressed gases in refrigeration systems without a reliable pressure regulator and pressure relief valve in the lines Component Testin damper control between refrigerator and freezer compartments providing temperature control for refrigerator Electrical voltage activates damper control and door closes restricting flow of air from freezer compartment to refrigerator compartment Component Description Test Procedures Thermistor Temperature sensing device Check resistance across leads Temperature Resistance 77 F 10 000 ohms 36 F 29 500 ohms O F 86 300 ohms Electric Damper control balances the air delivery Check resistance across terminals If no resistance across terminals replace damper control Water Single pole single throw switch Check resistant across terminals Dispenser completes circuit for water solenoid when Water button
36. ee from defective materials or workmanship for a period of ninety 90 days from the date of original retail purchase ANY DEFECTS MUST BE REPORTED TO THE SELLING DEALER WITHIN NINETY 90 DAYS FROM DATE OF ORIGINAL RETAIL PURCHASE SIX YEAR FULL WARRANTY Any sealed refrigeration system component as listed below or any automatic ice maker is warranted to be free from defective materials or workmanship in normal household use during the third through the sixth year from the date of original retail purchase Viking Range Corporation warrantor agrees to repair or replace at its option any part which fails or is found to be defective during the warranty period Sealed Refrigeration System Components Compressor Evaporator Condenser Connecting Tubing Dryer Strainer TWELVE YEAR LIMITED WARRANTY Any sealed refrigeration system component as listed above which fails due to defective materials or workmanship in normal household use during the seventh through the twelfth year from the date of original retail purchase will be repaired or replaced free of charge for the part itself with the owner paying all other costs including labor NINETY 90 DAY RESIDENTIAL PLUS WARRANTY This warranty applies to applications where use of the product extends beyond normal residential use Examples are but not limited to bed and breakfasts fire stations private clubs churches etc This warranty excludes all commercial locations such as restaurants food servic
37. eees 49 Ice Maker Removal c ccceeeseeeeeeesseeeeeseeeenees 45 Appendix 50 2007 Viking Preferred Service 5 General Information Fully Electronic Defrost System The Control Board adapts the compressor run time between defrosts to achieve optimum defrost intervals by monitoring the length of time the defrost heater is on After initial power up defrost interval is 4 hours compressor run time Defrost occurs immediately after the 4 hours Once unit is ready to defrost there is a 4 minute wait time prior to the beginning of the defrost cycle Serial Number Location The model number and serial number are located on the data plate The data plate is located in the refrigerator compartment on the upper right side Installation Location Do not install refrigerator near oven radiator or other heat source If this is not possible shield the refrigerator with cabinet material Do not install where temperature falls below 55 F or rises above 110 F Malfunction may occur at this temperature Refrigerator is designed for indoor household application only Measuring the Opening When installing your refrigerator allow 12 space at top and 2 space behind machine compartment cover located in the rear for proper air circulation If the refrigerator is placed with the door hinge side against a wall you may want to allow additional space so the door can be opened wider Subflooring or floor coverings i e ca
38. ent and is quieter overall Because new units run quieter sounds may be detected that were present in older units but were masked by higher sound levels Many of these sounds are normal Please note that the surfaces adjacent to a refrigerator such as hard walls floors and cabinetry may make these sounds seem even louder The following are some of the normal sounds that may be noticed in a new refrigerator SOUND POSSIBLE CAUSE SOLUTION Clicking Freezer control clicks when starting or stopping compressor Normal operation Defrost timer or electric damper control sounds like an Normal operation electric clock and snaps in and out of defrost cycle Air rushing or Condenser fan makes this noise while operating Normal operation whirring Freezer fan makes this noise while operating Normal operation Gurgling or Evaporator and heat exchanger refrigerant make this noise Normal operation boiling sound when flowing Thumping Ice cubes from ice maker drop into ice bucket Normal operation Vibrating Compressor makes a pulsating sound while running Normal operation ae Refrigerator is not level See Leveling Buzzing Ice maker water valve hookup buzzes when ice maker fills Normal operation with water Humming Ice maker is in the ON position without water connection Stop sound by raising ice maker arm to OFF position Compressor can make a high pitched hum while operating Normal operation H
39. er compressor winding reads open infinite or very high resistance or dead short 0 ohms replace compressor Ground test 1 Disconnect power to refrigerator 2 Discharge capacitor if present by shorting terminals through a resistor 3 Remove compressor leads and use an ohmmeter set on highest scale 4 Touch one lead to compressor body clean point of contact and other probe to each compressor terminal NOTE If reading is obtained compressor is grounded and must be replaced ee C1 BR OU 2007 Viking Preferred Service 21 Component Testin Component Description Test Procedures Compressor Operation test If voltage capacitor overload and motor winding tests do not show cause for failure perform the following test 1 Disconnect power to refrigerator 2 Discharge capacitor by shorting capacitor terminals through a resistor 3 Remove leads from compressor terminals 4 Wire a test cord to power switch 5 Place time delayed fuse with UL rating equal to amp rating of motor in test cord socket Refer to Technical Data Sheet 6 Remove overload and relay 7 Connect start common and run leads of test cord on appropriate terminals of compressor 8 Attach capacitor leads of test cord together If capacitor is used attach capacitor lead to a known good capacitor of same capacity To AC Supply A A Switch Compressor IN Capacitor 9 Plug test cord into mul
40. erant charge Inaccurately charged system will cause future problems To charge system Close valves A to vacuum pump and C to vacuum gauge and E to low side manifold gauge 9 Set scale on dial a charge cylinder for corresponding HFC134a pressure reading 10 Open valve F to charging cylinder and let exact amount of refrigerant flow from cylinder into system Close valve Low side gauge pressure should rise shortly after opening charging cylinder valve as system pressure equalizes through capillary tube If pressure does not equalize a restriction typically exists at capillary drier braze joint 11 If pressure equalizes open valve E to low side manifold gauge and pinch off high side drier process tube 12 Start compressor and draw remaining refrigerant from charging hoses and manifold into compressor through compressor process tube 13 To check high side pinch off drier process tube Close valve D to high side gauge If high side pressure rises repeat high side pinch off and open valve D Repeat until high side pinch off does not leak 14 Pinch off compressor process tube and remove charging hose Braze stub closed while compressor is operating 15 Disconnect power Remove charging hose and braze high side drier process tube closed 16 Recheck for refrigerant leaks 34 Refrigerant Charge Refrigerant charge in all capillary tube systems is critical and exact amount is
41. essor Bolt Remove drier Unbraze low and high pressure lines at compressor Remove three bolts and compressor from the unit Reverse procedure for installation ONO NOTE Install new drier and compressor per instructions in Service Procedures Evacuate and recharge sealed system per instructions in Service Procedures Condensate Drip Pan Removal Condition Requirements Compressor Removed Condenser Fan Motor Removed Water Valve Assembly Removed NOTE Condensate drip pan may have water in it Wipe up all water prior to removal 1 Bend copper tubing up out of condensate pan to allow removal of condensate pan 2 Reverse procedure for installation 2007 Viking Preferred Service VIKING Disassembly Procedure To avoid risk of electrical shock personal injury or death disconnect power to unit before servicing unless testing requires power Condenser Removal Condition Requirements Condenser Fan Motor Removed Compressor Removed NOTE Condenser is removed by laying unit on its back and requires at least two people to do this procedure 1 Follow reclaiming procedures in Service Procedures section of this manual 2 With the help of second person lay unit on back on raised surface 3 Remove four torx head screws holding basepan to cabinet 4 Lift and remove basepan to access condenser coil 5 Unbraze condenser coil from connecting tubing 6 Remove condenser coil by unsnapping it from re
42. ications as a refrigerant shortage with lower than normal back pressure head pressure and wattage warmer product temperatures NOTE If a total restriction is on the discharge side of the compressor higher than normal head pressures and wattages would result This is true only while the low side is being pumped out and if the restriction was between the compressor and the first half of the condenser To diagnose for a restriction versus a refrigerant shortage discharge the system replace the drier filter evacuate and recharge with the specified refrigerant charge If the unit performs normally three possibilities exist 1 refrigerant loss 2 partially restricted drier filter and 3 moisture in system 2007 Viking Preferred Service If the unit performs as it previously did you may have a restricted capillary line or condenser or kinked line Find the point of restriction and correct it A restriction reduces the flow rate of the refrigerant and consequently reduces the rate of heat removal Complete restriction may be caused by moisture solid contaminants in the system or a poorly soldered joint Moisture freezes at the evaporator inlet end of the capillary tube or solid contaminants collect in the drier filter The wattage drops because the compressor is not circulating the usual amount of refrigerant As far as pressure readings are concerned if the restriction such as a kinked line or a joint soldered shut is anywhe
43. impaired condensing temperature becomes higher High liquid temperature means liquid will not remove as much heat during boiling in evaporator as under normal conditions This would be indicated by higher than normal head pressures long run time and high wattage Remove any obstruction that would restrict normal air movement through condenser From condenser the refrigerant flows into a post condenser loop which helps control exterior condensation on flange center mullion and around freezer door Refrigerant then flows through the drier to evaporator and into compressor through suction line Overload Relay When voltage is connected and relay is cool current passes through relay to start winding After a short time current heats the resistor in relay and resistance will rise blocking current flow through relay Start winding remains in the circuit through run capacitor Solid state relay plugs directly on compressor start and run terminals Relay terminals 2 and 3 are connected within relay Run capacitor is connected to relay terminal 3 L2 side of 120 VAC power is connected to relay terminal 2 Control board See Control Board section for troubleshooting information Test Procedures Leaks in condenser can usually be detected by using an electronic leak detector or soap solution Look for signs of compressor oil when checking for leaks A certain amount of compressor oil is circulated with refrigerant
44. ing the appliance reasonably accessible for service If the product or one of its component parts contains a defect or malfunction during the warranty period after a reasonable number of attempts by the warrantor to remedy the defects or malfunctions the owner is entitled to either a refund or replacement of the product or its component part or parts Replacement of a component part includes its free installation Warrantor s liability on any claim of any kind with respect to the goods or services covered hereunder shall in no case exceed the price of the goods or service or part there of which gives rise to the claim WARRANTY SERVICE Under the terms of this warranty service must be performed by a factory authorized Viking Range Corporation service agent or representative Service will be provided during normal business hours and labor performed at overtime or premium rates shall not be covered by this warranty To obtain warranty service contact the dealer from whom the product was purchased an authorized Viking Range Corporation service agent or Viking Range Corporation Provide model and serial number and date of original purchase For the name of your nearest authorized Viking Range Corporation service agency call the dealer from whom the product was purchased or Viking Range Corporation IMPORTANT Retain proof of original purchase to establish warranty period The return of the Owner Registration Card is not a condition of warranty coverage
45. ips that hold it to back wall of unit Then roll bottom of evaporator forward and up exposing evaporator heater in its location amid fins at bottom of evaporator 4 Release heater clips and remove heater from evaporator coil Evaporator Clip Defrost Heater 5 Reverse procedure for installation 2007 Viking Preferred Service Disassembly Procedure To avoid risk of electrical shock personal injury or death disconnect power to unit before servicing unless testing requires power Evaporator Removal Water Valve Condition Requirements Condition Requirements Defrost Thermostat Removed Access to Machine Compartment Defrost Heater Removed 1 Remove two screws and water valve cover plate NOTE Reclaim refrigerant per instructions in Service Procedures before attempting evaporator removal To avoid system contamination do not leave system open for more than 10 minutes 1 Unbraze evaporator coil after completing reclaiming 4 procedures found in Service Procedures section of this manual 2 Remove two screws from evaporator coil 3 Release evaporator coil from clips by pulling coil off of clips Evaporator 4 Reverse procedure for installation Condensate Drain Tube Condition Requirements Access to Machine Compartment 5 Remove drain tube by pulling down on drain tube 6 Reverse procedure for installation 2007 Viking Preferred Service 2 3 assembly from the unit Disconnect
46. issing or Defrost heater hisses sizzles or pops when operational Normal operation Popping 10 2007 Viking Preferred Service Troubleshooting Chart Symptom Possible Cause Corrective Action Freezer control and lights are on but compressor is not operating Unit is in defrost mode Normal operation Wait 40 minutes to see if compressor restarts Temperature controlled drawers are too warm Control settings are too low Adjust controls Freezer controls are set too low Adjust controls Drawer is improperly positioned Verify drawer positioning Refrigerator does not operate Refrigerator is not plugged in Plug in refrigerator Touch temperature controls are set to Adjust controls Fuse is blown or circuit breaker needs to be reset Replace any blown fuses Check circuit breaker and reset if necessary Power outage has occurred Call local power company to report outage Refrigerator still won t operate Unit is malfunctioning Unplug refrigerator and transfer food to another refrigerator If another refrigerator is not available place dry ice in freezer section to preserve food Warranty does not cover food loss Water droplets form on outside of refrigerator Door gaskets are not sealing properly Clean door gasket Humidity levels are high Normal during times of high humidity Controls require adjustment
47. ms and slowly moves back to infinity e Open needle does not move Replace capacitor e Shorted needle moves to zero and stays Replace capacitor e High resistance leak needle jumps toward 0 and then moves back to constant high resistance not infinity Compressor When compressor electrical circuit is Resistance test energized the start winding current causes relay to heat After an amount of starting time the start winding circuit turns off The relay will switch off the start winding circuit even though compressor has not started for example when attempting to restart after momentary power interruption With open relay compressor will not start because there is little or no current to start windings Overload protection will open due to high locked rotor run winding current With shorted relay or capacitor compressor will start and overload protector will quickly open due to high current of combined run and start windings With open or weak capacitor compressor will start and run as normal but will consume more energy 1 Disconnect power to unit 2 Discharge capacitor by shorting across terminals with a resistor for 1 minute NOTE Some compressors do not have a run capacitor Remove leads from compressor terminals Set ohmmeter to lowest scale Check for resistance between Terminals S and C start winding Terminals R and C run winding If eith
48. nd Off NOTE Display will show DC voltage Service Test 121 Damper Operation Press the REFRIGERATOR TEMP UP button and REFRIGERATOR TEMP DOWN button to toggle damper OP open and CL closed NOTE If damper is opening or closing it will not allow you to toggle damper and beep Display will show state CL or OP if Damper is in the process of closing or opening Service Test 131 Mullion Heater 3 Door Models Press the Refrigerator Up keypad and Refrigerator Down keypad to toggle Mullion Heater On and Off Service Test 141 Refrigerator Thermistor Will show refrigerator temperature or OP for open thermistor or SH for shorted thermistor Service Test 142 Freezer Thermistor Will show freezer temperature or OP for open thermistor or SH for shorted thermistor Service Test 143 Machine Compartment Thermistor Will show machine compartment temperature or OP open thermistor or SH shorted thermistor Service Test 151 Refrigerator Door State Will show state of refrigerator door OP open CL closed NOTE By pushing refrigerator door switch you can toggle state from OP open to CL closed Service Test 152 Freezer Door State Will show state of freezer door OP open CL closed 2007 Viking Preferred Service Control Board NOTE By pushing freezer door switch you can toggle state from OP
49. net 3 Check resistance from ground connection solder Trace to motor frame must not exceed 05 ohms 4 Check for voltage at connector to motor with unit in refrigeration mode and compressor operating Refrigerator Single pole single throw switch Check resistant across terminals light switch completes circuit for light when door is Switch arm depressed open NO terminals Open Switch arm up NO terminals Closed Freezer light Single pole Double throw switch Check resistant across terminals Interlock completes circuit for light when door is Switch arm depressed switch open Completes circuit for dispenser e NO terminals Open when door is closed ee e NC terminals Closed Switch arm not depressed e NC terminals Open e NO terminals Closed Water valve Controls water flow to the ice maker Check resistance across coil windings Controlled by thermostat in ice maker See Ice Maker section for further information Drier Drier is placed at post condenser loop Drier must be changed every time the system is outlet and passes liquefied refrigerant to opened for testing or compressor replacement capillary Desiccant 20 8 x 12 4AXH 7 M gt S gt NOTE Drier used in R12 sealed system is not Grams interchangeable with drier used in R134a sealed system Always replace drier in R134a system with correct part number Before opening refrigeration system recover HFC134a refrigerant for safe disposal
50. ning any refrigeration system EPA regulations require refrigerant in system to be captured for safe disposal Proper evacuation of sealed refrigeration system is an important service procedure Usable life and operational efficiency greatly depends upon how completely air moisture and other non condensables are evacuated from sealed system Air in sealed system causes high condensing temperature and pressure resulting in increased power requirements and reduced performance Moisture in sealed system chemically reacts with refrigerant and oil to form corrosive hydrofluoric and hydrochloric acids These acids attack motor windings and parts causing premature breakdown Before opening system evaporator coil must be at ambient temperature to minimize moisture infiltration into system Evacuation To evacuate sealed refrigeration system 1 Connect vacuum pump vacuum tight manifold set with high vacuum hoses thermocouple vacuum gauge and charging cylinder as shown in illustration Evacuation should be done through I D opening of tubes not through line piercing valve Connect low side line to compressor process tube Connect high side line to drier process tube Evacuate both simultaneously With valve C and F closed open all other valves and start vacuum pump Pop 2007 Viking Preferred Service Service Procedure Thermistor igh Side Gauge Vacuum Gauge Low Side Gauge H Z Charging Hos Compre
51. ntrol would not be satisfied thus continuous running of the compressor would result The compressor would eventually pump the low side into a vacuum drawing air and moisture into the system Air and R134A do not mix so the air pressure would be e Evaporator inlet and outlet temperatures warmer than normal e Suction tube temperature below ambient Always check for separated heat exchanger when suction temperature is colder than ambient Various conditions could indicate an overcharge For example if the cooling coil is not defrosted at regular intervals due to a failure of the defrost system the refrigerant will flood out and cause the suction line to frost or sweat The cause of this problem should be corrected rather than to purge refrigerant from the system Running the freezer section colder than necessary 2 to 1 F is considered normal package temperatures or continuous running of the compressor for a variety of reasons or the freezer fan motor not running may give the indication of an overcharge 2007 Viking Preferred Service added to the normal head pressure resulting in higher than normal head pressures One way to determine if air is in the system is to read the head pressure gauge with the product off and evaporator and condenser at the same temperature and then take the temperature on the condenser outlet tube This temperature should be within 3 or 4 F of what the Pressure Temperature Relation cha
52. nts Light Bulos Removed 1 Remove socket plate from tabs 2 Disconnect wires from socket 3 Remove socket from socket plate Wires Socket Plate Socket 4 Reverse procedure for installation Electronic Control Board Removal Condition Requirements Light Bulos Removed 1 Using a screwdriver depress two tabs and lower the control panel housing 2 Disconnect connector from control board 3 Unclip thermistor from control panel housing 2007 Viking Preferred Service Control Panel _ Housing 4 Disconnect ribbon connector and remove board from tabs 5 Reverse procedure for installation Light Switch Removal Condition Requirements Door Opened 1 Use a taped putty knife to carefully pry light switch out of liner 2 Disconnect two wires from the light switch and remove light switch from unit 3 Reverse procedure for installation 41 Disassembly Procedure To avoid risk of electrical shock personal injury or death disconnect power to unit before servicing unless testing requires power Refrigerator Thermistor Removal Condition Requirements Electronic Control Removed 1 Unclip thermistor from control panel housing 2 Cut wires at thermistor to remove Thermistor 3 Reverse procedure for installation Electronically Controlled Damper Removal Condition Requirements Door Opened 1 Remove louvered cover from damper control housing 2 Remove two screw
53. ollowing steps Do not unbraze drier filter Applying heat to remove drier will drive moisture into system To avoid risk of severe personal injury or death cut drier at correct location Cutting drier at incorrect location will allow desiccant beads to scatter Completely clean area of beads if spilled 1 Score capillary tube close to drier and break 2 Reform inlet tube to drier allowing enough space for large tube cutter 3 Cut circumference of drier at 1 1 4 below condenser inlet tube joint to drier 4 Remove drier 5 Apply heat trap paste on post condenser tubes to protect grommets from high heat 6 Unbraze remaining part of drier Remove drier from system 7 Discard drier in safe place Do not leave drier with customer If refrigerator is under warranty old drier must accompany warranty claim 2007 Viking Preferred Service VIKING Service Procedure Refrigerant Flow Capillary Tube Note Capillary Tube and Suction Tube are located under Fresh Food floor Suction Tube Evaporator f TANIA M Condenser Post Condenser Tube Compressor Discharge Tube Process Tube 2007 Viking Preferred Service 37 Service Procedure VIKING Cabinet Air Flow Refrigerator Air Supply Tunnel To Fresh Food Compartment Control Damper Crisper Air Supply Port Refrigerator Return Air Tunnels Evaporator Fan Assembly
54. or runs after system is recovered but would not operate when wired direct before recovery a restriction in sealed system is indicated If motor does not run when wired direct after recovery replace faulty compressor 31 Service Procedure Dehydrating Sealed Refrigeration System Moisture in a refrigerator sealed system exposed to heat generated by the compressor and motor reacts chemically with refrigerant and oil in the system and forms corrosive hydrochloric and hydrofluoric acids These acids contribute to breakdown of motor winding insulation and corrosion of compressor working parts causing compressor failure In addition sludge a residue of the chemical reaction coats all surfaces of sealed system and will eventually restrict refrigerant flow through capillary tube To dehydrate sealed system evacuate system see Evacuation Restrictions Symptoms Restrictions in sealed system most often occur at capillary tube or filter drier but can exist anywhere on liquid side of system Restrictions reduce refrigerant flow rate and heat removal rate Wattage drops because compressor is not circulating normal amount of refrigerants Common causes of total restrictions are moisture poorly soldered joints or solid contaminants Moisture freezes at evaporator inlet end of capillary tube Solid contaminants collect in filter drier If restriction is on low side suction pressure will be in a vacuum and head pressure will be
55. other part Ensure fan properly aligned and all attaching hardware and brackets are tight and not worn Tighten or replace Worn fan motor bearings Check motor for worn bearings Replace if necessary Compressor mounting grommets worn or missing Mounting hardware loose or missing Tighten hardware Replace grommets if necessary Free or loose parts causing or allowing noise during operation Inspect unit for parts that may have worked free or loose or missing screws Repair as required 16 2007 Viking Preferred Service Control Board FREEZER e EU o gt REFRIGERATOR gt D e GD INDICATOR MODE ALARM ALARM TEMP ea TEMP Programming Mode The Program Code is located on the serial plate on this unit after the word code 1 Press and hold the DOOR OPEN ALARM button 2 Press and hold the FREEZER TEMP DOWN button 3 Release the DOOR OPEN ALARM button and wait 3 seconds 4 The control will display PE to indicate the programming mode 5 Entry is confirmed by pressing the FREEZER TEMP DOWN button once more 6 The control will display the current program code This value should be validated with the program code printed on the unit serial plate NOTE If the program code is correct the programming mode is exited by closing the refrigerator door 7 Press the REFRIGERATOR TEMP UP button or REFRIGERATOR TEMP DOWN button to change the digit value with each press
56. pair by applying additional brazing material Joint must be disassembled cleaned and rebrazed Capture refrigerant charge if system is charged unbraze joint clean all parts then rebraze If leak is detected in tubing replace tubing If leak is detected in either coil replace faulty coil 2007 Viking Preferred Service Refrigerant Precautions To avoid risk of personal injury do not allow refrigerant to contact eyes or skin To avoid risk of property damage do not use refrigerant other than that shown on unit serial number identification plate NOTE All precautionary measures recommended by refrigerant manufacturers and suppliers apply and should be observed Line Piercing Valves Line piercing valves can be used for diagnosis but are not suitable for evacuating or charging due to holes pierced in tubing by valves NOTE Do not leave line piercing valves on system Connection between valve and tubing is not hermetically sealed Leaks will occur Open Lines During any processing of refrigeration system never leave lines open to atmosphere Open lines allow water vapor to enter system making proper evacuation more difficult Compressor Operational Test short term testing only If compressor voltage capacitor overload and motor winding tests are successful do not indicate a fault perform the following test 1 Disconnect power to unit 2 Discharge capacitor by shorting capacitor terminals through a
57. pressure is low Check water pressure requirements Saddle valve not open completely Open saddle valve completely Improper water valve was installed See Connecting the Water Supply Copper tubing has kinks Turn off water supply and remove kinks If kinks cannot be removed replace tubing Water filter is clogged or needs to be changed Change water filter Water valve not opened completely Open water valve completely and check for leaks The minimum flow at dispenser is approximately 10 fluid ounces in nine seconds with a new filter in place or approximately 10 fluid ounces in five seconds without a filter Water appears cloudy Air or air bubbles in water This is normal when first using the dispenser and will disappear with use Ice forms in inlet tube to ice maker Water pressure is low Check water pressure requirements Saddle valve not open completely Open saddle valve completely Freezer temperature is too high Adjust temperature Refrigerator is leaking water Plastic tubing was used to complete water connection The manufacturer recommends using copper tubing for installation Improper water valve was installed See Connecting the Water Supply 2007 Viking Preferred Service 13 Troubleshooting Chart Symptom Possible Cause Corrective Action Dispenser water is not cold Refrigerator has been r
58. re gauge will be lower than normal probably in a vacuum and the head pressure gauge will be higher than normal It will probably continue to become higher because air drawn in through the leak is compressed by the compressor and accumulates in the high side condenser of the system e Only partial frosting of evaporator instead of even frosting of entire coil NOTE Usually the first thing that is noticed by the user is a rise in temperature foods Although temperatures will rise in both the freezer section and the food compartment the frozen meats and vegetables will not thaw immediately The customer doesn t associate the problem with the freezer section and will first notice that milk and other food beverages are not cold enough Under some circumstances such as in the case of forced air meatkeeper model with a slight shortage of refrigerant freezing in the food compartment may be experienced due to the additional running time With a refrigerant leak however it always gets worse and as the refrigerant charge decreases the temperature will continue to rise With a shortage of refrigerant the capillary line will not have a full column of liquid As a result there is a noticeable hissing sound in the evaporator This should not be mistaken for the regular refrigerant boiling sounds that would be considered normal 28 Symptoms of Low or High Ambient Temperature Installation Lower ambient air temperature reduces the conden
59. re on the low side the suction pressure would probably be in a vacuum while the head pressure will be near normal If the restriction is on the high side the suction pressure again will probably be in a vacuum while the head pressure will be higher than normal during the pump out period described earlier In either case it will take longer than the normal ten minutes or so for the head pressure to equalize with the low side after the compressor stops 29 Service Procedure Service Equipment Listed below is equipment needed for proper servicing of HFC134a systems Verify equipment is confirmed by manufacturer as being compatible with HFC134a and ester oil system e Evacuation pump Check with vacuum pump supplier to verify equipment is compatible for HFC134a Leak detector Flux Sil Fos Silver solder Dry nitrogen 99 5 minimum purity with 40 F or lower dew point Crimp tool Tube bender Micron vacuum gauge Heat trap paste The following equipment must be exclusively used for HFC134a e Four way manifold gauge set with low loss hoses e Charging cylinder e Line piercing saddle valve Schroeder valves Seals must be HFC134a and ester oil compatible Line piercing valves may be used for diagnosis but are not suitable for evacuation or charging due to minute holes pierced in tubing Do not leave mechanical access valves on system Valves eventually will leak Molecules of HFC134a are smaller than other refriger
60. required for proper performance Factory charges are shown on serial plate NOTE Do not use refrigerant other than shown on serial plate HFC134a Service Information HFC1 34a is alternative refrigerant for CFC12 HFC134a has an ozone depletion potential ODP factor of 0 0 and a global warming potential GWP factor of 0 27 HFC134a is not flammable and has acceptable toxicity levels HFC134a is not interchangeable with CFC12 There are significant differences between HFC134a and CFC12 which must be considered when handling and processing refrigeration system Health Safety and Handling Health safety and handling considerations for HFC134A are virtually no different than those for CFC12 Health Safety and CFC12 HFC134a Handling Allowable overall 1 000 ppm Same exposure limit Vapor exposure to skin No effect Same Liquid exposure to skin Can cause frostbite Same Vapor exposure to eye Very slight eye irritant Same Liquid exposure to eye Can cause frostbite Same Above minimum Can cause Asphyxiation Same exposure limit Tachycardia and Cardia Arrhythmias Safety and handling Wear appropriate skin Same and eye protection Use with adequate ventilation Spill management Remove or extinguish Same ignition or combustion sources Evacuate or ventilate area Fire explosion hazards May decompose if Same contact with flames and heating elements Container may explode if heated due to resulting press
61. rmostat Removal 46 Refrigerator Thermistor Removal 42 Defrost Heater Removal 46 Electronically Controlled Damper Removal 42 Evaporator Removal 46 Water Filter Removal cceeeeceeeeeeeeeeeeeeneeees 42 Condensate Drain Tube n 47 Initial Installation 42 Water Valve ccccccceccesseceseeseeeesesnaeeeesentaeeseseaaes 47 Replacing Water Filter 42 Condenser Fan Motor and Blade Removal 47 Access to Machine Compartment esseesseeesees 42 Overload Relay Removal 48 Water Filter Assembly Removal 43 Compressor Removal 48 Water Tank Assembly Removal 43 Condensate Drip Pan Removal 48 Water Dispenser Switch Removal 0 0 8 44 Condenser Removal 48 Freezer Section Light Bulb Removal 00 44 Front and Rear Leveling Rollers Removal 49 Freezer Section Light Socket Removal 44 Door Gasket Removal 49 Freezer Drawer Removal 45 Door Handle Installation 49 Freezer Drawer Glides Removal 45 Door and Hinge Removal cccecceteeeeeee
62. roperly Clean door gasket Refrigerator or ice maker makes unfamiliar sounds or seems too loud Normal operation See Operating Sounds Temperature controlled drawer and or crisper drawer do not close freely Contents could be obstructing drawer Reposition food items and containers to avoid interference with the drawers Drawer is not in proper position Verify drawer positioning Refrigerator is not level See Leveling Drawer channels are dirty Clean drawer channels with warm soapy water Rinse and dry thoroughly Apply a thin layer of petroleum jelly to drawer channels Refrigerator runs too frequently Doors have been opened frequently or for long periods time Reduce time door is open Allow interior environment to adjust for period the door has been opened Humidity or temperature in surrounding area is high Normal operation Food has recently been added Allow time for recently added food to reach refrigerator or freezer temperature Refrigerator is exposed to heat by environment or by appliances nearby Evaluate your refrigerators environment Refrigerator may need to be moved to run more efficiently Condenser coils are dirty Clean coils Controls need to be adjusted Adjust controls Door is not closing properly Refrigerator is not level Level refrigerator Check for internal obstructions that are keeping
63. rpet tile wood floors rugs may make your opening smaller than anticipated Some clearance may be gained by using the leveling procedure under Leveling IMPORTANT If refrigerator is to be installed into a recess where the top of the refrigerator is completely covered use dimensions from floor to top of hinge cap to verify proper clearance 6 Leveling Use care when leveling the refrigerator to avoid damaging the floor or refrigerator To enhance the appearance and maintain performance the refrigerator should be level NOTE Complete any required door reversal panel installation and or a water supply connection before leveling 1 Remove toe grille 2 Turn front adjustment screws clockwise to raise and counterclockwise to lower the front of the refrigerator 3 Turn rear adjustment screws clockwise to raise and counterclockwise to lower the rear of the refrigerator 4 Using a level make sure front of refrigerator is 14 or 2 bubble higher than back of refrigerator and that the refrigerator is level from side to side 5 If required correct rocking of refrigerator by turning rear adjustment screw clockwise to raise rocking corner _ Rear Adjustment SRMN L 11 Front Adjustment Screws Leveling doors 1 Turn front adjustment screw clockwise to raise front corner of door 2 If one refrigerator door has reached the limit of its adjustment range and doors are still not
64. rt shows for the given idle head pressure If the temperature of the condenser outlet is considerably lower than the idle head pressure of the gauge this would indicate there is air in the system Thorough leak checking is necessary Correct the source of the leak Do not attempt to purge off the air because this could result in the system being undercharged It is best to discharge replace drier evacuate and recharge with the specified refrigerant charge 27 System Diagnosis eon of Refrigeration Shortage Rise in food product temperature in both compartments See Note below e Long or continuous run time e Look for obvious traces of oil that would occur due to a leak or cracked refrigerant line e Lower than normal wattage e Compressor will be hot to touch because of the heat generated by the motor windings from long continuous running It will not be as hot as it would be with a full charge and long run times for some other reason such as a dirty condenser e Depending on the amount of the shortage the condenser will not be hot but closer to room temperature The capillary tube will be warmer than normal from a slight shortage e If the leak is on the high side of the system both gauges will show lower than normal readings and will show progressively lower readings as this charge becomes less The suction pressure gauge will probably indicate a vacuum e If the leak is on the low side of the system the suction pressu
65. s and damper cover from damper 3 Remove foam insert by pulling it off of damper control Screws Ne Damper Cover Louvered Cover 4 Unclip damper from unit 5 Disconnect connectors from damper and remove damper mS Connector Damper 6 Reverse procedure for installation 42 Water Filter Removal To avoid risk of personal injury or property damage Use caution when removing air trapped in system may cause water and cartridge to eject Condition Requirements Door Opened Initial Installation 1 Remove blue bypass cap and retain for later use 2 Remove sealing label from end of filter and insert into filter head 3 Rotate gently clockwise until filter stops Snap filter cover closed 4 Flush air from system by running water continuously for two minutes through dispenser until water runs steady Replacing Water Filter 1 Turn filter counterclockwise until it releases from filter head 2 Drain water from filter into sink and dispose in normal household trash 3 Remove sealing label from end of filter and insert into filter head 4 Rotate gently clockwise until filter stops Snap filter cover closed 5 Flush air from system by running water continuously for two minutes through dispenser until water runs steady 2007 Viking Preferred Service Disassembly Procedure To avoid risk of electrical shock personal injury or death disconnect power to unit before servicing
66. sing temperature and therefore reduces the temperature of the liquid entering the evaporator The increase in refrigeration effect due to operation in a lower ambient results in a decrease in power consumption and run time At lower ambients there is a reduction in cabinet heat leak which is partially responsible for lower power consumption and run time An increase in refrigeration effect cannot be expected below a certain minimum ambient temperature This temperature varies with the type and design of the product Generally speaking ambient temperatures cannot be lower than 60 F without affecting operating efficiency Conversely the higher the ambient temperature the higher the head pressure must be to raise the high side refrigerant temperature above that of the condensing medium Therefore head pressure will be higher as the ambient temperature raises Refrigerators installed in ambient temperatures lower than 60 F will not perform as well because the pressures within the system are generally reduced and unbalanced This means that the lower head pressure forces less liquid refrigerant through the capillary line The result is the symptoms of a refrigerant shortage The lower the ambient temperature the more pronounced this condition becomes When a point where the ambient temperature is below the cut in of the Temperature Control is reached the compressor won t run The drain traps will freeze in ambient temperatures of 32
67. sing the UP button Set the refrigerator control to next lower number by pressing the DOWN button Set the freezer control to next higher number by pressing the UP button Set the freezer control to next lower number by pressing the DOWN Refrigerator too warm Freezer too cold Freezer too warm button Turn refrigerator Press the FREEZER off TEMP UP button until OFF appears in the display Press the FREEZER TEMP DOWN button to turn back on 2007 Viking Preferred Service TEMP Max Ice When activated Max Ice reduces the freezer temperature to the optimum setting for 24 hours in order to produce more ice NOTE When the Max Ice feature is in operation the UP and DOWN buttons for the freezer control will not operate Water Filter Indicator When a water filter is installed in the refrigerator the yellow ORDER light will illuminate when e 90 percent of the volume of water has passed through the filter e 11 months have elapsed since the filter was installed The red REPLACE light will illuminate when e the rated volume of water has passed through the filter e 12 months have elapsed since the filter was installed A new filter should be installed immediately when the REPLACE light is illuminated After replacing the filter press and hold the WATER FILTER INDICATOR button for three seconds The ORDER and REPLACE lights will go off Vacation Mode The Vaca
68. ssor A Process Tube 0 6 cm Copper Tubing Charging Vacuum Pump Cylinder Equipment Setup for Evacuation and Charging 5 After compound gauge low side drops to approximately 29 inches gauge open valve C to vacuum thermocouple gauge and take micron reading NOTE A high vacuum pump can only produce a good vacuum if oil in pump is not contaminated 6 Continue evacuating system until vacuum gauge registers 600 microns 7 At 600 microns close valve A to vacuum pump and allow micron reading in system to balance Micron level will rise e Ifin 2 minutes micron level stabilizes at 1000 microns or below system is ready to be charged e f micron level rises above 1000 microns and stabilizes open valve A and continue evacuating e f micron reading rises rapidly and does not stabilize a leak still exists in system go to step 8 8 Close valve A to vacuum pump and valve C to vacuum gauge Invert charging cylinder and open charging cylinder valve F to add partial charge for leak checking With leak detector check manifold connections and system for leaks After locating leak capture refrigerant repair leak and begin at step 1 33 Service Procedure Charging NOTE Do not use captured or recycled refrigerant in units Captured or recycled refrigerant voids any warranty NOTE Charge system with exact amount of refrigerant Refer to unit serial plate for correct refrig
69. ste stale Empty the ice storage bin periodically and wash it in lukewarm water Be sure to dry the bin thoroughly before replacing it e Beverages and foods should not be placed in the ice storage bin for quick chilling These items can block the ice maker arm causing the ice maker to malfunction e Turn off arm up the ice maker when the water supply is to be shut off for several hours Water Dispenser To Use Dispenser e Hold container under spout and press dispenser pad 2007 Viking Preferred Service General Information Care and Cleaning To avoid risk of electrical shock which can cause severe personal injury or death disconnect power to unit before cleaning Only use recommended cleaning products Do not place buckets shelves or accessories in a dishwasher cracking or warping may result Refrigerator Cleaning Chart PART DO NOT USE DO Cabinet Interior Abrasive or harsh cleaners Ammonia Chlorine bleach Concentrated detergents or solvents Metal or plastic textured scouring pads Use 4 tablespoons of baking soda dissolved in 1 quart warm soapy water Rinse surfaces with clean warm water and dry immediately to avoid water spots Stainless Steel Doors and Exterior IMPORTANT Damage to stainless steel finish due to improper use of cleaning products or non recommended products is not covered under this product s warranty Abrasive or harsh cleaners Ammonia Chlorine bl
70. tainers in basepan Condenser Basepan 7 Reverse procedure for installation Front and Rear Leveling Rollers Removal Condition Requirements None NOTE The front and rear leveling rollers are removed the same The front is shown in this task Remove toe grille 2 Raise and block unit to access roller 3 Screw leveler bolts until they are loose from leveling roller 2007 Viking Preferred Service 4 Slide leveling roller out rear of slot Leveling Roller 5 Reverse procedure for installation Door Gasket Removal Condition Requirements None 1 Grasp gasket in upper corners and pull gasket out of dart retainer 2 When reinstalling door gaskets start at corners pushing dart edge into retainer and seat gasket flush to door Door Handle Installation 1 Loosen lower door clip on door with a phillips screwdriver 2 Locate predrilled hole at base of handle and fit hollow end of handle over lower door clip 3 Fit other end of handle over upper door clip and slide up as far as possible NOTE If top of handle does not fit over top clip loosen lower clip further until fit can be accomplished 4 Insert phillips screwdriver into predrilled hole at base of handle to tighten screw Insert plastic button plug into hole Door and Hinge Removal Condition Requirements None 1 Remove screw and top hinge cover 2 Disconnect connectors from door 3 Remove screws from top hinge NOTE Do
71. te removal of water tank Reverse procedure for installation 43 Disassembly Procedure VIKING To avoid risk of electrical shock personal injury or death disconnect power to unit before servicing unless testing requires power Water Dispenser Switch Removal Freezer Section Light Socket Removal Condition Requirements Condition Requirements Door Opened Freezer Light Bulb Removed 1 Insert small screwdriver as shown to remove Freezer Drawer Removed dispenser cover plate 1 Remove screw to lower light socket housing from 2 Remove screw and pull dispenser out of unit unit 2 Disconnect wires from light socket 3 Squeeze retaining tab to release socket 3 Disconnect wires from switch and remove switch from dispenser unit 4 Reverse procedure for installation 4 Reverse procedure for installation Freezer Section Light Bulb Removal Condition Requirements To avoid risk of burners wear gloves when replacing light bulb Freezer Drawer Opened 1 Remove light shield by pressing the upper right side of the shield and rotating downward 2 Remove light bulb 3 Replace with appliance bulb no greater than 40 watis 44 2007 Viking Preferred Service Disassembly Procedure To avoid risk of electrical shock personal injury or death disconnect power to unit before servicing unless testing requires power Freezer Drawer Removal Condition Requirements Freezer Baskets Removed 1
72. ted oil will be saturated with moisture e CFC12 has much higher tolerance to system processing materials such as drawing compounds rust inhibitors and cleaning compounds than HFC134a Such materials are not soluble in HFC134a systems If materials were to be washed from system surfaces by ester oils they could accumulate and eventually plug capillary tube e Care must be taken to minimize moisture entering HFC134a system Do not leave compressor or system open to atmosphere for more than 10 minutes Excessive moisture in HFC134a system will react with compressor oil and generate acid e Compressor must be replaced when performing low side leak repair 2007 Viking Preferred Service Service Procedure e Drier filter must always be replaced with service drier filter IMPORTANT Unbrazing drier filter from tubing will drive moisture from desiccant and into system causing acids to form Do not unbraze filter drier from tubing If CFC12 service drier was installed in HFC134A system drier could overload due to excessive moisture e HFC134a compatible copper tubing must be used when replacing tubing e Avoid system contamination when flaring swagging or cutting refrigeration tubing Brazing To avoid risk of personal injury or property damage take necessary precautions against high temperatures required for brazing Satisfactory results require cleanliness experience and use of proper materials and equipment
73. th Mode by performing the following sequence of events 1 Press and hold the DOOR OPEN ALARM button for 6 seconds 2 Press FREEZER TEMP UP button until SAb is in the freezer display 3 Press the REFRIGERATOR TEMP UP button or DOWN button to toggle between On and OFF in the refrigerator display 4 Selection activates immediately Alarm Enable Mode Enter the Alarm Enable Mode by performing the following sequence of events 1 Press and hold the DOOR OPEN ALARM button for 6 seconds 2 Press FREEZER TEMP UP button until AL is in the freezer display 3 Press the REFRIGERATOR TEMP UP button or DOWN button to toggle between On and OFF in the refrigerator display 4 Close door or toggle door switch to activate 2007 Viking Preferred Service Component Testing Component Description Test Procedures Capacitor Run capacitor connects to relay Some compressors do not require a run capacitor refer to the Technical Data To avoid electrical shock which can cause severe Sheet for the unit being serviced personal injury or death discharge capacitor through a resistor before handling 1 Disconnect power to refrigerator 2 Remove capacitor cover and disconnect capacitor wires 3 Discharge capacitor by shorting across terminals with a resistor for 1 minute 4 Check resistance across capacitor terminals with ohmmeter set on X1K scale e Good needle swings to 0 oh
74. timeter to determine start and run wattage and to check for low voltage which can also be a source of trouble indications 10 With power to multimeter press start cord switch and release e f compressor motor starts and draws normal wattage compressor is okay and trouble is in capacitor relay overload freezer temperature control or elsewhere in system e f compressor does not start when direct wired recover refrigerant at high side After refrigerant is recovered repeat compressor direct wire test If compressor runs after recovery but would not run when direct wired before recover a restriction in sealed system is indicated e f compressor does not run when wired direct after recovery replace faulty compressor 22 2007 Viking Preferred Service Component Testing Component Description Condenser Condenser is a tube and wire construction located in machine compartment Condenser is on high pressure discharge side of compressor Condenser function is to transfer heat absorbed by refrigerant to ambient Higher pressure gas is routed to condenser where gas condenses into a high pressure liquid state Heat transfer takes place because discharged gas is at a higher temperature than air that is passing over condenser Adequate air flow over condenser must be maintained Condenser is air cooled by condenser fan motor If efficiency of heat transfer from condenser to surrounding air is
75. tion Mode feature causes the freezer to defrost less frequently conserving energy The VACATION MODE indicator light will illuminate when the feature is activated To deactivate press the VACATION MODE button again OR open either door The indicator light will go off NOTE Door openings will not deactivate Vacation Mode for approximately one hour after activation Door Open Alarm The Door Open Alarm will alert you when one of the doors has been left open for five continuous minutes When this happens an audible alarm will sound every few seconds until the door is closed OR the DOOR OPEN ALARM button is pressed to deactivate the feature General Information High Temp Alarm The High Temp Alarm system will alert you if the freezer or refrigerator temperatures exceed normal operating temperatures due to a power outage or other event When activated the HIGH TEMP ALARM light will illuminate If the freezer or refrigerator temperatures have exceeded these limits the display will alternately show the current compartment temperatures and the highest compartment temperatures reached when the power was out An audible alarm will sound repeatedly Press the HIGH TEMP ALARM button once to stop the audible alarm The HIGH TEMP ALARM light will continue to flash and the temperatures will alternate until the temperatures have stabilized To turn off HIGH TEMP ALARM press and hold the HIGH TEMP ALARM button for three seconds The indica
76. tor airflow not properly adjusted Check air flow Frost or ice on Defrost thermostat faulty Check defrost thermostat Replace if failed evaporator Evaporator fan faulty Check fan motor Replace if failed Defrost heater remains open Check defrost heater continuity Replace if failed Defrost control faulty Check control and replace if failed Open wire or connector Check wiring and connections Repair as necessary Refrigerant shortage or restriction Check for leak or restriction Repair evacuate and recharge system Unit starts and stops Loose wire or thermostat Check wiring and connections Repair as necessary frequently cycles on connections and oi Supply voltage out of Check input voltage Correct any supply problems specification Overload protector open Check overload protector for continuity If open replace overload Ensure overload compressor are below trip temperature before testing Faulty compressor motor capacitor some compressors do not require motor capacitor Check capacitor for open short Replace if necessary Discharge capacitor before testing Faulty fan motor Check fan motor Replace if failed Restricted air flow Check condenser and grille for dirt Clean Refrigerant shortage or restriction Check for leak or restriction Repair evacuate and recharge system 2007 Viking Preferred Service 15 Tro
77. tor light will go off Max Cold When activated Max Cold causes the refrigerator and freezer temperatures to drop to the minimum settings on the control This cools down the refrigerator and freezer after extended door openings or when loading the refrigerator or freezer with warm food NOTE When the Max Cold feature is in operation the UP and DOWN buttons for the refrigerator and freezer controls will not operate To activate press the MAX COLD button MAX COLD will deactivate automatically after 12 hours OR press the MAX COLD button to deactivate the feature User Preferences Access the User Preferences menu to e Change the temperature display from F to C e Enable or disable audible alarms e Adjust the light level at which the Dispenser Auto Light will illuminate when this feature is activated on the ice and water dispenser select models e Activate the Sabbath Mode To access the User Preferences menu 1 Press and hold the DOOR OPEN ALARM button for three seconds NOTE When in the User Preferences mode a short title for the feature will appear in the FREEZER TEMP display and the feature status will appear in the REFRIGERATOR TEMP display 2 Use the FREEZER TEMP UP and DOWN buttons to scroll through the features 3 When the desired feature is displayed use the REFRIGERATOR TEMP UP and DOWN buttons to change the status 4 When changes are complete press THE DOOR OPEN ALARM button for three secon
78. ubleshooting Chart Symptom Possible Cause Corrective Action Freezer section too cold Freezer temp control set too cold Adjust freezer temperature control Faulty control Test control Replace if failed Unit runs continuously Temperature control set too cold Adjust temperature control Dirty condenser or obstructed grille Check condenser and grille Clean Poor door seal Level cabinet Adjust hinges Replace gasket Interior light remains on Check switch Replace if necessary Faulty condenser fan or evaporator fan Check fan and wiring Replace if necessary Faulty control Test control Replace if failed Refrigerant shortage or restriction Check for leak or restriction Repair evacuate and recharge system Refrigerant overcharge Check for overcharge Evacuate and recharge system Air in system Check for low side leak Repair evacuate and recharge system Temperature normal Unit runs continuously Ice on evaporator Defrost unit Temperature too cold Unit runs continuously Faulty defrost thermostat Check thermostat Replace if necessary Noisy operation Loose flooring or floor not firm Repair floor or brace floor Cabinet not level Level cabinet Tubing in contact with cabinet other tubing or other metal Adjust tubing Drip pan vibrating Adjust drain pan Fan hitting an
79. ure rise Combustion products are toxic Disposal procedures Recycle or reclaim Same 2007 Viking Preferred Service Comparison of CFC12 and HFC134a Properties Properties Characteristics CFC12 HFC134a Ozone Depletion Potential ODP 1 0 0 0 Global Warming Potential GPW 3 2 0 27 Molecular weight 121 102 Boiling point at 1 atmosphere 22 F 15 F 30 C 126 C Vapor pressure at 77 F 25 C 80 psig 82 psig Liquid density at 77 F 25 C 82 lb ft 75 lb ft Flammability No No High side system operating HFC134a approximately Pressure at 65 F 18 C 3 psig higher than CFC12 Low side system operating HFC134a approximately Pressure at 65 F 18 C 2 psig lower than CFC12 To minimize contamination exercise extreme care when servicing HFC134A sealed systems e No trace of other refrigerants is allowed in HFC134a systems Chlorinated molecules in other refrigerants such as CFC 12 etc will lead to capillary tube plugging e Ester oil is used in HFC134a systems Do not use mineral oil HFC134a and mineral oils cannot be mixed If mineral oils were used in HFC134a systems lubricant would not return to compressor and would cause early compressor failure If significant amount of oil has been lost from compressor replace oil rather than adding oil e Ester oils used in HFC134a systems are so hydroscopic that by the time an inadequate system performance is detec

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