Service Diagnosis - Ice-O-Matic GEM0650A/W Service And Installation Manual

GEM0650/0956/1256 A/W
Symptom
No ice is made nothing operates.
No ice, auger motor is turning.
Possible Cause
•Unit off due to no power
•Unit off due to master switch in OFF
position
•Unit off due to low water level
•Unit off due to ice level sensors.
(Photo Eyes ) blocked.
•Unit off due to scale on water level
sensor.
•Unit off due to high pressure control open.
•Auger motor hums but does not turn.
•Unit is shut down.
•Low pressure control open.
•No power to circuit board.
•Circuit board gear motor relay will
not close.
•Compressor contactor coil is open.
•Compressor will not start.
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Service Diagnosis

Probable Correction
•Restore Power
•Switch master Switch to ON
•Check water supply, filter
strainer, float valve. Correct
water supply.
•Check/clean ice level sensors.
•Clean water level sensor.
•Check for water interruption
(water cooled) or fan motor
failure.
•Auger can't turn. Circuit board
has not yet shut it down.
•Circuit board has shut ice
machine down due to high
auger motor amp draw. Check
for cause of high amp draw,
including bearings, gear motor
condition and scale on auger
and in evaporator.
•Auger not turning due to:
motor failure; auger relay
failure on circuit board; or
or gears stripped. Check
drive train.
•TXV restricted or not metering.
Check bulb temperature.
•Lack of refrigerant, check for
leak.
•Check for a restricted system.
•Check harness
•Hi or low pressure cut outs
open.
•Check/replace board.
•Check/replace contactor.
•Check start capacitor.
•Check start relay.
•Check compressor windings.