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Disassembly Procedure

WARNING

To avoid risk of electrical shock, personal injury, or death, disconnect power to unit before servicing,

unless testing requires power.

46

©2007 Viking Preferred Service

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.

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.

Evaporator
Fan Motor

Evaporator
Fan Clip

Shroud
Assembly

Fan Blade

4. Reverse procedure for installation.

Defrost Thermostat Removal

Condition Requirements:
Access to Evaporator Section

1. Cut wires to defrost thermostat and unclip

thermostat from evaporator coil.

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.
2.  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 clips 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.

5. Reverse procedure for installation.

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Содержание DDBF036LSS

Страница 1: ...CE MANUAL Bottom Mount Freezer Refrigerators Models VCBF036RSS VCBF036LSS DDBF036RSS DDBF036LSS VCFF036SS DDFF036SS 2007 Viking Preferred Service 1803 Hwy 82 West Greenwood Mississippi 38930 USA 662 455 1200 ...

Страница 2: ...ny different types of altering messages All safety messages will be preceded by a safety alert symbol and the word DANGER WARNING or CAUTION DANGER Immediate hazards which WILL result in severe personal injury or death WARNING Hazards or unsafe practices which COULD result in severe personal injury or death CAUTION Hazards or unsafe practices which COULD result in minor personal injury product or ...

Страница 3: ...er 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...

Страница 4: ...20 Show Room Mode 20 Sabbath Mode 20 Alarm Enable Mode 20 Component Testing 19 System Diagnosis 25 Symptoms of an Overcharge 27 Symptoms of Air in System 27 Symptoms of Refrigeration Shortage 28 Symptoms of Low or High Ambient Temperature Installation 28 Heat Load 28 Symptoms of a Restriction 29 Service Procedure 28 Service Equipment 30 Leak Testing 30 Testing Systems Containing a Refrigerant Char...

Страница 5: ...tch Removal 44 Freezer Section Light Bulb Removal 44 Freezer Section Light Socket Removal 44 Freezer Drawer Removal 45 Freezer Drawer Glides Removal 45 Ice Maker Removal 45 Freezer Thermistor Removal 45 Access to Evaporator Section 45 Evaporator Fan Motor Assembly 45 Evaporator Fan Motor and Fan Blade 46 Defrost Thermostat Removal 46 Defrost Heater Removal 46 Evaporator Removal 46 Condensate Drain...

Страница 6: ...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 Leveling CAUTION Use care when leveling the refrigerator to avoid damaging the floor or refri...

Страница 7: ...n the display Press the FREEZER TEMP DOWN button to turn back on 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 lig...

Страница 8: ...r 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 seconds OR close the door Temperature Display F_C Change the display to show temperatures in degrees Fahrenheit o...

Страница 9: ...r harsh cleaners Ammonia Chlorine bleach 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 h...

Страница 10: ...opping compressor Normal operation Clicking Defrost timer or electric damper control sounds like an electric clock and snaps in and out of defrost cycle Normal operation Condenser fan makes this noise while operating Normal operation Air rushing or whirring Freezer fan makes this noise while operating Normal operation Gurgling or boiling sound Evaporator and heat exchanger refrigerant make this no...

Страница 11: ... food Warranty does not cover food loss Door gaskets are not sealing properly Clean door gasket Humidity levels are high Normal during times of high humidity Water droplets form on outside of refrigerator Controls require adjustment Adjust controls Condenser coils are dirty Clean coils Food temperature is too cold Refrigerator or freezer temperatures are set too high Adjust controls Odor producing...

Страница 12: ...oors have been opened frequently or for long periods time 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 refrig...

Страница 13: ...en 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 flow is slower than normal Water valve not opened completely Open water valve completely and check for leaks The minimum flow at...

Страница 14: ...er 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 rel...

Страница 15: ...ty 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 Frost or ice on evaporator Refrigerant shortage or restriction Check for leak or restriction Repair evacuate and recharge system Loose wire or thermostat ...

Страница 16: ...nit runs continuously Air in system Check for low side leak Repair evacuate and recharge system Unit runs continuously Temperature normal Ice on evaporator Defrost unit Unit runs continuously Temperature too cold Faulty defrost thermostat Check thermostat Replace if necessary Loose flooring or floor not firm Repair floor or brace floor Cabinet not level Level cabinet Tubing in contact with cabinet...

Страница 17: ...e 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 Defrost Operation The Control Board adapts the compressor run time between defrosts to achieve optimum defrost intervals by monitoring the length of time the d...

Страница 18: ......

Страница 19: ...oor 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 NOTE By pushing freezer door switch you can toggle state from OP 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 o...

Страница 20: ...P 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 Sabbath Mode Enter the Sabbath 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 bu...

Страница 21: ...it 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 curr...

Страница 22: ... together If capacitor is used attach capacitor lead to a known good capacitor of same capacity To AC Supply Switch R S Compressor Capacitor Fuses C 9 Plug test cord into multimeter 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 If compressor motor starts and draws nor...

Страница 23: ...tion Look for signs of compressor oil when checking for leaks A certain amount of compressor oil is circulated with refrigerant 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 WA...

Страница 24: ...etes circuit for dispenser when door is closed Check resistant across terminals Switch arm depressed NO terminals Open NC terminals Closed Switch arm not depressed NC terminals Open NO terminals Closed Water valve Controls water flow to the ice maker Controlled by thermostat in ice maker See Ice Maker section for further information Check resistance across coil windings Drier Drier is placed at po...

Страница 25: ... evaporator coil below freezing thermostat should show continuity when checked with ohmmeter See Heater evaporator defrost section for additional tests After defrost thermostat opens thermostat remains open until end of defrost cycle and refrigerator starts cooling again Defrost thermostat senses a preset low temperature and resets closes Evaporator Inner volume of evaporator allows liquid refrige...

Страница 26: ...mpartments providing temperature control for refrigerator Electrical voltage activates damper control and door closes restricting flow of air from freezer compartment to refrigerator compartment Check resistance across terminals If no resistance across terminals replace damper control Water Dispenser Switch Single pole single throw switch completes circuit for water solenoid when button is depress...

Страница 27: ...rost 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 i...

Страница 28: ... 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 Symptoms of Low or High Ambient Temperature Installation Lower ambient air temperature reduces the condensing temperature and therefore reduces the temperature of the liquid entering the evaporator The increa...

Страница 29: ...agnose 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 If the unit performs as it previously did you may have a restricted capillary line or condenser or kink...

Страница 30: ...RY 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 restrictio...

Страница 31: ...ssor terminals 4 Attach test cord to compressor windings Common lead on test cord attaches to C terminal on compressor Start lead on test cord attaches to S terminal on compressor Run lead on test cord attaches to M terminal on compressor To AC Supply Switch R S Compressor Capacitor Fuses C Attaching Capacitor for Compressor Test 5 Connect a known good capacitor into circuit as shown above For pro...

Страница 32: ...triction 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 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 stab...

Страница 33: ...ough line piercing valve 2 Connect low side line to compressor process tube 3 Connect high side line to drier process tube 4 Evacuate both simultaneously With valve C and F closed open all other valves and start vacuum pump Charging Cylinder Charging Hose Charging Hose Drier Process Tube F Valve A B C D Valve E Valve Low Side Gauge Thermistor Vacuum Gauge Vacuum Pump 0 6 cm Copper Tubing Compresso...

Страница 34: ...se and braze high side drier process tube closed 16 Recheck for refrigerant leaks Refrigerant Charge Refrigerant charge in all capillary tube systems is critical and exact amount is 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 HFC134a is alternative refrigerant for CFC12 HFC134a ha...

Страница 35: ...oils they could accumulate and eventually plug capillary tube 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 Compressor must be replaced when performing low side leak repair Drier filter must always be replaced with ser...

Страница 36: ...est during initial pull down Allow one off cycle or balanced temperature condition to occur before proceeding with testing Refrigerator must operate minimum of 20 minutes after thermocouples are installed Turn control to colder to obtain required on time Wattage reading must be recorded in conjunction with temperature test to confirm proper operation Suction and head pressures are listed on Temper...

Страница 37: ...ing Preferred Service 37 Refrigerant Flow Compressor Discharge Tube Condenser Post Condenser Tube Suction Tube Capillary Tube Note Capillary Tube and Suction Tube are located under Fresh Food floor Evaporator Process Tube Drier ...

Страница 38: ...Freezer Air Supply Grille Evaporator Evaporator Cover Evaporator Fan Assembly Crisper Air Supply Port Refrigerator Air Supply Tunnel To Fresh Food Compartment Control Damper Refrigerator Return Air Tunnels Freezer Return Air Through Louvers At Bottom Of Evaporator Cover ...

Страница 39: ...Service Procedure 2007 Viking Preferred Service 39 Machine Compartment Air Flow Compressor Condenser Condenser Fan Assembly ...

Страница 40: ...vice Procedure 40 2007 Viking Preferred Service Water Dispenser 1 4 O D Plastic Tubing Plastic Tubing 5 16 O D 5 16 O D Plastic Tubing Routed Through Conduit Icemaker Water Reservoir Water Dispenser Filter ...

Страница 41: ...quirements Light Bulbs Removed 1 Remove socket plate from tabs 2 Disconnect wires from socket 3 Remove socket from socket plate 4 Reverse procedure for installation Electronic Control Board Removal Condition Requirements Light Bulbs 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 hou...

Страница 42: ...ion Water Filter Removal CAUTION 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 fi...

Страница 43: ...ft side filter head and pulling downward and to your left to release filter head 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 installati...

Страница 44: ...unit 4 Reverse procedure for installation Freezer Section Light Bulb Removal Condition Requirements CAUTION 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 watts Freezer Section Light Socket Removal Cond...

Страница 45: ...tion 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 4 Reverse procedure for installation NOTE Make sure to get fill tube inserted in to fill cup fully when reassembling Freezer Thermistor Removal Condition Requirements Freezer Drawer Removed 1 R...

Страница 46: ... Fan Motor Evaporator Fan Clip Shroud Assembly Fan Blade 4 Reverse procedure for installation Defrost Thermostat Removal Condition Requirements Access to Evaporator Section 1 Cut wires to defrost thermostat and unclip thermostat from evaporator coil 2 Replace thermostat and use wire nut s included in defrost thermostat kit 3 Reverse procedure for installation Defrost Heater Removal Condition Requi...

Страница 47: ...ing 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 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 Water Valve Condition Requir...

Страница 48: ...re 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 5 Remove drier 6 Unbraze low and high pressure lines at...

Страница 49: ... block unit to access roller 3 Screw leveler bolts until they are loose from leveling roller 4 Slide leveling roller out rear of slot 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 ...

Страница 50: ...Appendix A 50 2007 Viking Preferred Service NOTES ...

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