56
Service Diagnostics and Procedures
© 2012 Viking Preferred Service
Troubleshooting guide (continued)
Temperature problems probable Cause
Correction
Freezer too cold
Temperature setting
Defrost thermostat
Control board
Thermistor
Move to medium setting
Verify thermostat is closing
Verify operation
Verify operation
Ice Maker problems
probable Cause
Correction
Ice maker will not operate
Freezer too warm
Shut off arm
Water valve
Water supply
Verify freezer temperature
Verify the arm is in the “ON position
Verify valve operation
Verify water supply
Jammed cubes (small or
oversized cubes)
Unit/ice maker not level
Water fill not proper
Level ice maker or unit
Adjust water fill level
Hollow cubes
Low water in mold (Thermostat
short cycle)
Unit/ice maker not level
Obstructions in fill tube
Low water pressure
Clogged filter
Replace ice maker thermostat
Level ice maker or unit
Remove obstructions in fill tub end
Remove obstructions in fill tube
Replace filter
Ice build-up on ejector
blades
Hollow cubes
Ice maker froze up
Fill level
See holl
ow cubes above
Remove ice maker and allow to thaw
Adjust water fill level
Cubes falling back into
mold during ejection
Small cubes
Fill cup displaced
Check fill level
Align fill cup
Raised shut-off arm
Shut-off arm in “OFF” position
Lower shut-off arm to “ON” position
Broken or bent shut-off
arm
Shut-off arm
Ice maker housing broken
Repair /Replace shut-off arm
Replace ice maker
Shut-off arm stuck or
obstructed
Shut-off arm obstructed
Remove obstruction
Ice maker not level
Unit not level
Ice maker not level
Level unit
Level ice maker
Thermostat defective
Thermostat
Replace thermostat
Ice stuck–Heater not
working
Defective heater
Replace ice maker
Won’t cycle test with power
available
Ice maker
Refer to ice maker test procedures (page 51)
Won’t eject ice with power
available
Ice maker
Refer to ice maker test procedures (page 51)
