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Viking VUWC144 - User Manual

Viking VUWC144
25 pages
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Manual
This manual is to be used by qualied appliance technicians only.
Viking does not assume any responsibility for property damage
or personal injury for improper service procedures done by an
unqualied person.
Service
SMR-0003
July 2008
DFRD144
DFUR143
DFUR144
DFUW144
DUAR143
DUAR144
DURD144
DUWC144
VUAR143
VUAR144
VURD144
VUWC144
2008 24 Inch
Undercounter
Refrigeration
This Base Manual covers general and
specic information including, but not
limited to the following models:

Questions and Answers

  • J
    Joshua EstesSep 8, 2025
    Why door is closed but the light is still on inside of Viking VUWC144?
    • C
      Christian HallSep 8, 2025
      If the door is closed but the light remains on, it's likely that the “LIGHT” button was not pressed before the door was last closed. Press the “LIGHT” button to disengage the light.
  • S
    Sarah BishopAug 23, 2025
    Why temperature controls are not raising or lowering the set temperature on Viking Refrigerator?
    • J
      Joseph WongAug 23, 2025
      If the temperature controls are not adjusting the set temperature, make sure you press and hold the “SET” button while pressing either the “WARMER” or “COLDER” button. This will raise or lower the set temperature by one degree F or C, depending on the setting.
  • G
    Gregory BerryAug 25, 2025
    What to do if audible alarm sounding three times every 30 seconds and LED light flashing green on Viking Refrigerator?
    • R
      Ricardo JohnsonAug 25, 2025
      If you hear an audible alarm sounding three times every 30 seconds and see the LED light flashing green, this indicates a Door Ajar alarm. To resolve this, simply close the refrigerator door securely.
  • K
    kathyaveryAug 26, 2025
    What to do if audible alarm sounding six times every minute and LED light flashing red on Viking Refrigerator?
    • S
      Sandra HernandezAug 27, 2025
      If you hear an audible alarm sounding six times every minute and the LED light is flashing red, this indicates a High and Low Temperature alarm. Press the “ON/OFF” button for approximately one second to reset the audible and display alarms. Note that the alarm will resume if the alarm condition still exists.
  • S
    Steve CooperAug 27, 2025
    What does it mean if LED light flashing amber and no audible signal heard on Viking Refrigerator?
    • R
      Rebecca WilliamsAug 27, 2025
      If the LED light is flashing amber and there is no audible signal, this indicates a Power Failure alarm. You can reset the audible and display alarms by pressing the “ON/OFF” button for approximately one second. Keep in mind that this alarm is normal upon initial installation because the unit was run at the factory to verify quality, and the alarm will resume if the alarm condition still exists.
  • M
    Michael GomezSep 22, 2025
    How to disable Tru Protect™ on Viking VUWC144 Refrigerator?
    • L
      ljonesSep 22, 2025
      To disable Tru Protect™, press and hold the “SET” button for five seconds. A steady amber light on the LED indicates Tru Protect™ is disabled.
  • K
    Kyle Long Jr.Sep 16, 2025
    What does E4 error code mean on Viking Refrigerator?
    • K
      Kimberly AdamsSep 16, 2025
      If you see an E4 error code on the display panel and hear an audible alarm sounding six times every minute, this indicates a display thermistor “sensor A” fault. Here are some possible solutions: * Check the wiring diagram on the back of the unit and reconnect any disconnected wires. * Replace the thermistor if the wires are shorted. * Replace the thermistor if it is faulty.
  • A
    Adam RomanSep 18, 2025
    How to enable Tru Protect™ on Viking VUWC144?
    • R
      Robert Stout MDSep 18, 2025
      To enable Tru Protect™, press and hold the “SET” button for five seconds. A steady green light on the LED indicates Tru Protect™ is engaged.
  • J
    Jennifer SchmidtSep 7, 2025
    How to disable Service Mode on Viking VUWC144 Refrigerator?
    • S
      Samuel HamiltonSep 7, 2025
      To exit Service Mode, press and hold the “WARMER” button while pressing the “COLDER” button four times within five seconds.
  • P
    Paul JohnsonSep 4, 2025
    What to do if compressor, condenser fan, internal fan(s), heater, reverse gas solenoid, and alarms are not working on Viking VUWC144?
    • M
      Michelle WernerSep 4, 2025
      If the compressor, condenser fan, internal fan(s), heater, reverse gas solenoid, and alarms are not working but the display is functioning normally, it is likely that Show Room Mode is enabled. To exit Show Room Mode, press and hold the “ON/OFF” button while performing a “Power On Reset” (POR), meaning disconnect and reconnect the power supply to the unit.

Summary

Important Information

Notices for Service Technicians

Guidelines and responsibilities for qualified appliance technicians performing service on Viking products.

Safety Symbols and Warnings

Explanation of safety symbols (Danger, Warning, Caution) to ensure safe operation and prevent injury.

General Information

Preparation Before Servicing

Essential safety precautions and work area preparation before attempting any service on Viking products.

Electrical Requirements

Specifies electrical needs, including voltage, frequency, and proper grounding, with safety warnings.

Sealed System Basics

Fundamental practices for servicing sealed refrigeration systems, emphasizing leak detection and component replacement.

Diagnostic Information

System Leaks and Restrictions

Diagnosing low side leaks, high side leaks, and restricted capillary tubes within the refrigeration system.

Re-charging Procedures

Step-by-step instructions for re-charging the refrigeration system after repairs.

Thermistor Component Overview

Details the functions of evaporator and display thermistors and the consequences of their failure.

Warning Alarms and Resetting

Explanation of warning alarms (door ajar, temperature, power failure) and how to reset them.

Compressor Component Overview

Details on the compressor's role and common faults, including electrical checks.

Error Code Detection and Reference

Information on error codes generated by the system and their potential causes and troubleshooting steps.

Troubleshooting Procedures

System Component Failure Troubleshooting

Troubleshooting when compressor, fans, heater, or alarms are not working correctly.

Alarm Condition Troubleshooting

Diagnosing and resolving audible alarms for door ajar and high/low temperature conditions.

Error Code Troubleshooting

Diagnosing and resolving specific error codes (E1-E4) related to component failures.

Component Testing Procedures

Thermistor Component Testing

Testing methods for display and evaporator thermistors, comparing resistance values to temperature charts.

Viking VUWC144 Specifications

General IconGeneral
BrandViking
ModelVUWC144
CategoryRefrigerator
FinishStainless Steel
Energy Star CertifiedNo
InstallationBuilt-In
DoorGlass
Weight150 lbs
TypeWine Cellar
Temperature Range40°F - 65°F
Shelves6
Width23.875 inches

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