Troubleshooting Guide - Viking VDSC367 Service Notebook

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
Ice maker will not operate
Refrigerator too warm
Refrigerator too cold
Freezer too warm
Freezer too cold
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
Freezer too warm
Shut off arm
Water valve
Water supply
Door opening
Warm food placed in unit
Control setting
Door seal
Airflow
Refrigerator fan
Temperature setting
Control board
Airflow
Control setting
Door seal
Dirty condenser
Control board
Temperature setting
Defrost thermostat
Control board
Control setting
Door seal
Dirty condenser Condens-
er/evaporator fan Control
board
Freezer thermistor
Defrost thermostat
Evaporator fan
Defrost heater
Sabbath Mode
Open circuit
Correction
Verify voltage
Reset breaker
Turn to the "ON" position
Ensure unit is level
Verify operation of float
Verify heater is working
Verify freezer temperature
Verify the arm is in the "ON" position
Verify valve operation
Verify water supply
Minimize door openings
Allow temperatures to stabilize
Move control to medium setting
Verify closure, replace if needed
Ensure airflow is not obstructed
Verify movement/operation of fan
Move control to medium setting
Verify proper operation
Verify airflow is proper
Move control to medium setting
Verify closure, replace if needed
Clean condenser coil
Verify operation
Move to medium setting
Verify thermostat is closing
Verify operation
Move to medium setting
Verify closure, replace if needed
Clean condenser coil
Verify movement/operation of fan
Verify operation
Verify thermistor is not shorted
Verify thermostat is closing
Check connection and possible short open condition
Verify operation of Sabbath Mode
Repair/replace wiring
Diagnostics
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