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Diagnostics

Code

Compressor

Status

Possible Fault

Service Action

1 Flash

(every 15

seconds)

1. No failure

detected

• If system is not working properly, check other refrigeration

components.

OFF

1. No signal

from control

board

2. Open

Thermistor

• If refrigerator settings (thermistor conditions) are at levels

in which the compressor should be “ON”.

• Unplug inverter from power supply and wait for 2

minutes, reconnect the inverter to the power supply

and wait for 12 minutes.

• If inverter still shows 1 ﬂash code and compressor is

OFF, then check the control board.

2 Flashes

(every 5 sec-

onds)

OFF

1. No signal

from the con-

trol board

• Check frequency cable connection

• If frequency cable connection is good , replace

inverter.

3 Flashes

(every 5 sec-

onds)

OFF

1. Compressor

/ inverter cable

open circuit

2. Compressor

winding open

circuit

• Check compressor/inverter cable connection

• Check compressor winding resistances (among the 3

terminal hermetic pins)

• If resistances are within specifications and

compressor/inverter cable is OK, replace inverter.

4 Flashes

(every 5 sec-

onds)

OFF

1. Compressor

damaged /

system

damaged

• Check compressor input power

• Check compressor winding resistances

• Check leakage current between hermetic terminal

pins and compressor shell.

• If resistance or leakage current is out of spec, replace

the compressor.

• If resistance and leakage current are within spec,

check inverter/compressor cable for open circuit.

• Unplug inverter from power supply and wait for 2

minutes, reconnect the inverter to the power supply

and wait for 12 minutes.

• If inverter still shows 4 ﬂash code and compressor is

OFF, replace the compressor.

No Flash

OFF

1. No input

power

2. Inverter

damaged

• Check the input power (115V)

• If there is no signal, check input power connections

• If voltage is within specs, unplug inverter from power

supply and wait for 2 minutes, reconnect the inverter to

the power supply and wait for 12 minutes.

• If inverter still shows no ﬂash code and compressor is

OFF, change the inverter.

• If the inverter shows no ﬂash code and the compressor is

ON, diagnostic function is not working properly.

VCC3 Inverter Diagnostic Codes

To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test

procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.

Ensure all ground wires are connected before certifying unit as repaired and/or operational.

WARNING

Содержание FDBB5361 Series

Страница 1: ...his manual is to be used by qualified appliance technicians only Viking does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person This Base Manual covers general and specific information including but not limited to the following models ...

Страница 2: ...ure 30 Display Frz Temperature 30 Defrost mode selection 30 Conventional defrost time adjustment CRTD 30 Compressor low speed frequency 31 Adjust Cut In Hysteresis 31 Adjust Cut Out Hysteresis 32 Display Software Version 33 Exiting Mode A 33 Program Mode B 33 Adjust Freezer Temperature Offset 33 Adjust Refrigerator Temperature Offset 34 Adjust MAX FRZ duration 34 Adjust MAX REF duration 34 Adjust ...

Страница 3: ...fety messages will be preceded by the safety alert symbol and the word DANGER WARNING or CAUTION These words mean IMMEDIATE HAZARDS WHICH WILL RESULT IN SEVERE PERSONAL INJURY OR DEATH Hazards or unsafe practices which COULD result in severe personal injury or death Hazards or unsafe practices which COULD result in minor personal injury or product or property damage All safety messages will identi...

Страница 4: ...A 70 latest edition or Canadian Electrical Code C22 1 1998 and C22 2 No 0 M91 or latest edition and all local codes and ordinances A 115 volt 60 Hz 15 amp fused electrical supply is required It is required that a separate circuit serving only this appliance be provided This appliance is equipped with a power supply cord having a 3 prong grounding plug To minimize possible shock hazard the cord mus...

Страница 5: ... NUMBER NUMERO AMPS 9 9 PE920095 UL UL c Model Serial Number Matrix The serial number and model number for your appliance are located on the identiﬁcation plate mounted on the upper left side of the door opening Model Numbers V C B B 5 3 6 1 L S S Viking Professional Series Commercial Built In Bottom Mount Version 36 Wide Refresh Left Hinge Stainless Serial Numbers 02 15 12 R1000264 Month Day Year...

Страница 6: ...power ON press power on off switch to the ON position Replace the center grille blade IMPORTANT Be sure the power on off switch is in the ON position after cleaning or changing light bulbs Electronic Temperature Settings When power is first applied to the refrigerator there will be two dashes displayed as in illustration After approximately thirty seconds the digital display will change to numbers...

Страница 7: ...ed or decreased by pressing HIGHER or LOWER tabs Fast Cool can be cancelled by pressing FAST COOL again the Fast Cool will extinguish on the display MAX FRZ and releasing the MAX FRZ tab This causes the control to temporarily factory setting is 6 hours change the current freezer set point to 5o F This set point temperature is not adjustable and is programmed from factory The time duration is adjus...

Страница 8: ...ing of three beeps This causes the control to immediately energize the appropriate outputs in an effort to reach both of the cut out temperatures refrigerator and freezer This function will ignore compressor dwell time and cause immediate compressor start up in the high speed mode 115HZ Forced pull down will terminate after both cut out temperatures are met or if a defrost or forced defrost is ini...

Страница 9: ...ll cause an audible three beeps signifying that Sabbath mode has been entered When Sabbath mode has been entered the display illuminates SAB see illustration below SAB will remain illuminated whether the door s are open or closed it will not change state Indicators that were illuminated on the display prior to going into Sabbath mode will remain illuminated and unchanged until exiting Sabbath mode...

Страница 10: ...LS DISPLAY OFF Fahrenheit to Celsius Factory default for readout is Fahrenheit to change to Celsius press and hold ACTIVATE CONTROLS and then press and hold DISPLAY OFF for three seconds and o F will change to o C To change back to Fahrenheit repeat same steps ...

Страница 11: ...r rate hold the pad down FAST COOL Pad FAST COOL will light up enabling the fast cool function which changes the freezer set point to max frz and the ref set point to max ref for a fac tory default of 2 hours Press FAST COOL pad A second press will disengage feature MAX FRZ Pad Sets freezer temperature to coldest setting 5o F Factory setting is 6 hours Press MAX FRZ Pad to engage A second press wi...

Страница 12: ...els of freezer or refrigerator thermistors Refrigerator and Freezer Thermistor NTC As temperature decreases resistance increases As temperature increases resistance decreases Note Openthermistororthermistorcircuitorashortedthermistorwillresultinrefrigeratorcontinuing to cool with error code displayed The affected section will call for cooling 100 percent of time except during defrost cycle Freezer...

Страница 13: ...l injury or death disconnect electrical power source to unit unless test procedures require power to be connected Ensure all ground wires are connected before certifying unit as repaired and or operational Low Voltage Board Inverter Power Disconnect Switch High Voltage Board Overlay Switch Upper Grill Assembly Control Panel ...

Страница 14: ...upper grille assembly slide out the middle air louver Middle Air Louver 2 With the middle grille louver removed remove the 2 1 4 hex screws securing the grille assembly Remove 1 4 screw on each side 3 Remove the grille assembly The control panel has an overlay switch attached to it that allows user input to the control boards 1 To access the control panel remove the upper air grille assembly see U...

Страница 15: ... Control Panel Removal sections Page 14 2 Disconnect overlay switch from control The unit uses an overlay switch to communicate user input to the control boards The overlay connects to the control board via a ribbon cable Overlay Switch 9 Reverse procedure to reinstall 8 The control panel can now be removed and the high voltage and low voltage boards are accessible 7 Remove the two strain relief s...

Страница 16: ...l sections Page 14 The unit uses a control board in conjunction with an overlay switch to operate functions of the refrigerator freezer Interaction with the low voltage board is via the ribbon cable attached to the overlay switch Low Voltage Board Overlay Switch continued 3 Peel overlay off control panel and remove remove adhesive to ensure replacement overlay adheres properly 4 Reverse procedure ...

Страница 17: ... be measured when in the 0 position and 0 VAC should be measured when in the position 2 Switch bracket is mounted on electronics box with two 1 4 hex head screws 3 Reverse procedure to reinstall The Compressor is operated by a Inverter that varies the voltage to the compressor This is determined by the frequency input from the low voltage board Inverter 1 To access the inverter remove upper air gr...

Страница 18: ...e upper machine compartment of the unit 120 VAC is supplied to the fan when the Compressor Condenser Fan relay closes to E4 on the High Voltage Board 1 To access the condenser fan assembly remove upper air grill assembly remove control panel assembly see Air Grill and Control Panel Removal sections Page 14 2 Remove the control box in order to gain easy access to the door hinge area for service The...

Страница 19: ...y or death disconnect electrical power source to unit unless test procedures require power to be connected Ensure all ground wires are connected before certifying unit as repaired and or operational Parts Location Refrigerator Compartment Plasma Cluster Light Assembly Fan Assembly Fresh Food Thermistor ...

Страница 20: ...shelves remove covers in upper left and right rear corners The unit uses a fan to circulate air through the refrigerator compartment Fresh Food Fan Assembly To check bulb verify ﬁlament is not broken resistance in the bulb and voltage is supplied to the socket 2 Remove screws securing cover 3 Disconnect wiring and fan is accessible 4 Reverse procedure to reinstall The unit uses 40 watt bulbs to li...

Страница 21: ...esistance vs temperature chart on Page 12 and Cut in and Cut out temperature chart on Page 42 To access remove top shelf if required remove covers in upper left and right rear corners see Fan Assembly Access section disconnect wiring and thermistor is accessible Fresh Food Thermistor To access remove 3 1 4 screws securing Plasma Cluster to refrigerator ceiling lower Plasma Cluster and disconnect w...

Страница 22: ...ath disconnect electrical power source to unit unless test procedures require power to be connected Ensure all ground wires are connected before certifying unit as repaired and or operational Water Valve Drain pan heater Service fan Icemaker Freezer thermistor Evaporator fan Parts Location Freezer Compartment ...

Страница 23: ...maker to let air circulate will help make ice faster After the ice forms the ice maker continues to wait until it reaches 15ºF before it starts the harvest cycle This ensures that the ice is solid in all the cavities At 15ºF the thermostat closes the mold heater turns on and the ejector blades rotate up and forward until they stall out against the ice The motor is designed to stall out and is gear...

Страница 24: ... side of line voltage V Water valve connection Place a 14 gauge jumper wire across test points T and H With hands clear of the ice maker manually close the freezer door switch This will put the ice maker in a manual cycle If the ejector does not rotate this indicates no power to the ice maker Trace power from the wall socket to the door switch and to the connector Repair circuit and connections or...

Страница 25: ...le Ohmmeter Checks No power to icemaker and Ejector blades in end of cycle Test Points Component Module Position Ohms L H Mold Heater Attached to support 264 L M Motor Separate from heater 16 100 Module Voltage checks with motor or test light power to icemaker Test Points Component Line Voltage 0 Volts L N Module Power On Power Off T H Bimetal Open Closed L H Heater On Off L M Motor On Off N V Wat...

Страница 26: ...rically open this indicates an overheat in the ice maker and the ice maker must be replaced The unit uses a fan motor to pull air over the evaporator coil and circulate it throughout the unit Evaporator Fan TCO Freezer Door Release clip 1 To access the evaporator fan motor open and remove freezer door press release clips forward on door glides to disengage door 2 Remove ice maker see Access Ice Ma...

Страница 27: ...move the yellow wire from E2 on the HV board Using an Ohm reading apply one lead to the yellow wire and the other to neutral E9 The resistance should be approximately 30 3 Ohms When the fan relay is energized Line voltage is sent to E2 and then to the Freezer fan motor If voltage is present and no fan movement replace fan motor Defrost Heater The defrost terminator is a bimetal switch that is norm...

Страница 28: ... Freezer Thermistor The freezer thermistor is a device that reads freezer temperatures The temperature of the freezer is measured and the thermistor cycles the compressor on and off to achieve the freezer setting selected by the end user To access the freezer thermistor open and remove freezer door see Evaporator Fan Access section Page 26 The freezer thermistor is now accessible Remove screws and...

Страница 29: ...sistance is approximately 790 Ω Verify 120 VAC to the heater and the ﬂoat switch is closed If the switch is closed and no voltage is supplied verify wiring power disconnect switch has not been turned ON and supply voltage If voltage is supplied the ﬂoat switch is closed and the heater does not energize replace the heater To avoid risk of electrical shock personal injury or death disconnect electri...

Страница 30: ...isplay the value of the thermistor temperature with the offset no filtering is applied to the display This readout will reflect instantaneous temperature changes on the freezer thermistor as shown in illustration next column Defrost mode selection Unit is shipped in Adaptive defrost mode this can be changed to Conventional defrost mode using the following procedure while in Mode A Press the FAST C...

Страница 31: ...ce this will result in the display CLF Pressing and releasing HIGHER or LOWER pads will bring the numeric display up pressing and releasing changes in increments of 1 HZ holding the key down changes in increments of 5 HZ This value should be set at 65HZ for this model refrigerator see Table 1 on Page 42 To exit the low speed adjustment press and release ACTIVATE CONTROLS one time which will result...

Страница 32: ...alues are set by eeprom Table 1 on Page 42 lists eeprom values set by model code Press REF TEMP to select the refrigerator compartment the display will illuminate REFRIGERATOR on display Next Press and release HIGHER or LOWER which will result in displaying degrees in Fahrenheit For the refrigerator section this should be set to 6o F see Table 1 on Page 42 using Higher and Lower pads See illustrat...

Страница 33: ...igit version as follows A the major version B the minor version C the build number Exiting Mode A Program Mode B If you are not already in Mode A go back to Mode A instructions on Page 30 Once you are in Mode A PrA in display press and release ACTIVATE CONTROLS one time and display will change to Prb signifying that control is now in Program Mode B see illustration below Adjust Freezer Temperature...

Страница 34: ...del code where several control values are set by eeprom Table 1 on Page 42 lists eeprom values set by model code Press and release REF TEMP pad once the REFRIGERATOR indicator will illuminate and the current refrigerator offset will be displayed along with o F Adjust MAX FRZ duration Adjust MAX REF duration While in Mode B press and release MAX REF one time this will result in MAX REF illuminating...

Страница 35: ...ons Adjust Compressor High Frequency This adjustment is not a field adjustment and should not be performed by technicians This is a factory only adjustment If you see CHF in the display immediately exit Mode B by holding ACTIVATE CONTROLS for three seconds until you get three audible beeps Return to your previous actions Adjust DC Fan Cycling On Time Adjust DC Fan Cycling Off Time This adjustment ...

Страница 36: ...itten to the eeprom and that the system has left Mode B and returned to Mode A The other way to ensure changes have been written into the eeprom is to press and hold ACTIVATE CONTROLS for three seconds and you will get three audible tones along with a normal temperature display This indicates that you have left Mode B and returned to normal operation Failure to do this will cause system to time ou...

Страница 37: ...Mode B instructions on Page 33 Once you are in Mode B Prb in display press and hold ALARM OFF for three seconds and display will change to PrC signifying that control is now in Program Mode C see illustration below Program Mode C Set Model type Setting the model code is required whenever the low voltage board is replaced this will update all of the settings indicated in Table 1 on Page 42 for the ...

Страница 38: ...lay changing to rLL Adjust Refrigerator Upper Temperature Limit While in Mode C press and hold MAX REF and then press and hold the HIGHER pad for three seconds this will result in the display changing to rUL Adjust Refrigerator Lower Temperature Limit Pressing and releasing HIGHER and LOWER pads will increase or decrease the set point which should be set at 5o F Defrost lockout adder This adjustme...

Страница 39: ... and is ignored by any other unit configuration Plant mode This adjustment is not a field adjustment and should not be performed by technicians This is a factory only adjustment If you see Pt in the display immediately turn power switch to OFF Turn power back on and start over ACTIVATE CONTROLS To exit Mode C and retain any changes made in system up to this point you must press and release ACTIVAT...

Страница 40: ... zone above Then pressing and releasing ALARM OFF once will clear the HIGH TEMP off the screen and the zone indicator will stop flashing 2 Open Thermistor Alarm Thecontrollerwillsenseanopenthermistorcondition within 15 seconds of power on Open Refrigerator Thermistor Alarm When the control senses that the refrigerator thermistor is open oPn is displayed on the control along with the zone REFRIGERA...

Страница 41: ...e faulty zone temperature control in the other zone is unaffected The visual alarms will reset by themselves within 15 seconds of the open thermistor condition being corrected and temperature control reverts back to normal operation 4 Power Loss Alarm If the control experiences a power loss condition and power is restored the Power Loss alarm is displayed This consists of the POWER indicator being...

Страница 42: ...out o F FRZ Cut In o F FRZ Cut out o F REF user default temp REF user default temp BM36 136 65 9 0 6 6 7 8 38 0 SxS42 342 75 6 2 6 6 7 7 38 0 SxS42D 242 75 8 4 6 6 7 7 38 0 SxS48 348 75 4 5 6 6 7 7 38 0 SxS48D 248 75 8 1 6 6 7 7 38 0 AF30 530 75 2 7 8 38 0 AF36 536 75 1 6 6 38 0 AR30 430 75 6 6 6 38 0 AR36 436 65 5 6 6 38 0 TABLE 1 Model types ...

Страница 43: ...ght cover with both hands and pull down Replace bulb with an incandescent medium base tubular bulb with a maximum of 40 watts Replace cover by engaging light bracket with the back ﬁngers on the light cover Once engaged snap the front ﬁngers on the light cover Note The clear section of the light cover is considered the back section Reconnect power or turn power disconnect switch to the ON position ...

Страница 44: ...use damage 3 Using a 5 16 head wrench turn the front F adjustment screws to raise or lower the front of the refrigerator 2 Remove upper kickplate screws using a Phillips screwdriver Remove kickplate assembly 3 Remove grille assembly 4 Remove four side screws and remove unit top 5 Loosen the four hinge screws Adjust door 6 Reverse procedure for reinstallation 1 Remove lower kickplate screws using a...

Страница 45: ... Viking Preferred Service 45 Note DO NOT use an electric device Overtightening can cause damage 5 Reinstall kickplate 4 Using a 5 16 head wrench turn the rear R adjustment screws to raise or lower the rear of the refrigerator ...

Страница 46: ...compressor input power Check compressor winding resistances Check leakage current between hermetic terminal pins and compressor shell If resistance or leakage current is out of spec replace the compressor If resistance and leakage current are within spec check inverter compressor cable for open circuit Unplug inverter from power supply and wait for 2 minutes reconnect the inverter to the power sup...

Страница 47: ...ts E12 E11 N A Neutral Out lights E13 E11 115 VAC Aux Heater Dis penser units only E14 E11 115 VAC E11 Ground E1 Refrigerator Condensate Fans E4 Compressor E3 Line In 120 VAC E2 Evaporator Fan E7 Refrigerator Door Switch E8 Freezer Door Switch E9 Neutral L1 Line In 120 VAC E5 Defrost Terminator E6 Defrost Heater E12 Neutral in E13 Light Relay E14 E14 Aux Heater High Voltage Board To avoid risk of ...

Страница 48: ...und See Note 2 below P4 9 Defrost termina tion signal 25 8 vdc 38 vdc ref to chas sis grnd See Note 2 below P4 10 Door signal 25 8 vdc 38 vdc ref to chas sis grnd See Note 2 below P4 11 PS Reference 0 vdc DC P4 12 30 vdc 22 8 vdc 38 vdc ref to chas sis ground See Note 2 below P4 13 Not used AC P4 14 Not used AC P4 15 Light enable relay 17 8 vdc 38 vdc ref to chas sis ground See Note 2 below Low Vo...

Страница 49: ...rd Airﬂow Move control to medium setting Verify proper operation Verify airﬂow is proper Freezer too warm Control setting Door seal Dirty condenser Control board Move control to medium setting Verify closure replace if needed Clean condenser coil Verify operation Freezer too cold Temperature setting Defrost thermostat Control board Move to medium setting Verify thermostat is closing Verify operati...

Страница 50: ...ace water valve depending on type Insufﬁcient water to ice maker with correct ﬁll time Check for restrictions in supply line and valve especially saddle valves Low water pressure at supply Increase water pressure to 20 120 PSI Low water pressure at water valve Look for restrictions in line Excessive water pressure Install pressure regulator and set to 60 PSI Low water ﬁll volume Adjust water ﬁll s...

Страница 51: ...7 F Replace thermostat Closed thermostat won t open above 32 F Replace thermostat Thermostat out of calibration Replace thermostat Heater not staked in mold Replace ice maker Won t cycle test with power available Replace ice maker Won t eject ice with power available Replace ice maker To avoid risk of electrical shock personal injury or death disconnect electrical power source to unit unless test ...

Страница 52: ...Wiring Diagrams 52 2012 Viking Preferred Service Chart for cable view layout Wiring and Component Testing High Voltage Board ...

Страница 53: ...ssover Fan 24 VDC Freezer Thermistor Evaporator Fan 120 VAC Top Mullion Heater Bottom Mullion Heater Automatic Ice Maker Defrost Terminator Defrost Heater Freezer Section Door Light Switch Drain Pan Heater Float Switch Service Fan Drain Pan 24 VDC Water Fill Valve Service connection for mullion heaters Service connection for service fan Refrigerator Compartment Freezer Compartment Bottom of Cabine...

Страница 54: ...Wiring Diagrams 54 2012 Viking Preferred Service UPPER SECTION ...

Страница 55: ...Wiring Diagrams 2012 Viking Preferred Service 55 LOWER SECTION ...

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