Troubleshooting Guide - Viking VCRB5301 Service Manual

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.

Troubleshooting Guide

Below and on the following page are some general guides should a problem be detected. Please
refer to the test procedures in this manual to determine the defective component.
Problem
Unit will not operate
Water overflows
defrost pan
Refrigerator too warm
(AR Model)
Refrigerator too warm
(AR Model)
Unit runs continually
Frost on evaporator
Unit running and no lights
©2012 Viking Preferred Service
! WARNING
Probable Cause
Power supply
Circuit breaker
Power switch
Unit not level
Float switch
Pan heater
Control setting
Door seal
Dirty condenser Defective thermistor
Control board
Temperature setting
Defective thermistor
Control board
Control setting
Door seal
Dirty condenser
Condenser/evaporat
or fan Defective
thermistor Control
board
Evaporator fan
Door not sealing
properly
Sabbath Mode
Open circuit
Troubleshooting
Correction
Verify voltage
Reset breaker
Turn to the "ON" position
Ensure unit is level
Verify operation of float switch
Verify heater is working
Move control to medium setting
Verify closure, replace if needed
Clean condenser coil
Replace thermistor
Verify operation
Move to medium setting
Replace thermistor
Verify operation
Move to medium setting
Verify closure, replace if needed
Clean condenser coil
Verify movement/operation of fan
Replace thermistor
Verify operation
Check connection and possible short open condition
Adjust door seal or replace.
Take out of Sabbath Mode
Repair/replace wiring
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