Troubleshooting Chart - Viking VCSB481 Service Notebook

ICE MAKER TROUBLESHOOTING CHART
Problem
Warm freezer
Broken locking tab on vertical cam
Shorted and burned module shut-off
switch and contacts
Stalled or stripped motor
Contaminated module.
Motor won't run when "T" and "H" test
points are shorted.
Open or missing thermostat
No power to ice maker (harness)
Jammed cubes
Notice size and density of cubes
Frozen fill tube
Kinked water line
Obstructed water line to ice maker or
refrigerator.
Clogged water valve
No power to water valve
Low water pressure
Open heater circuit
Closed thermostat
Damaged heater tulips on module
Short heater pins that do not
contact module
Raised shut-off arm
Water or ice in actuator/housing hole
Small or burred housing hole
Large or burred actuator O.D.
No or Low Ice Production
Action
Adjust freezer control or repair refrigerator
Replace Ice Maker
Replace Ice Maker
Replace Ice Maker
2:30 Ejector Position
Replace Ice Maker
Replace or install thermostat Apply alumilastic
Determine discontinuity by tracing power
Un-jam cubes
Check fill tube cup assembly
Replace water valve
Un-kink line and check line for weak sections
Clear water line
Replace water valve
Determine discontinuity by tracing power
Short "T" and "H" test points for 10 seconds.
Remove jumpers. Catch water in glass.
Increase water pressure to 20-120 (1.4-8.2 bar)
140cc's.
Replace Ice Maker
Replace Ice Maker
Replace Ice Maker
Replace Ice Maker
Lower shut-off arm to begin cycle
Replace Ice Maker
Replace Ice Maker
Replace Ice Maker
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