Ice-O-Matic GEM1856 GEM Models A/W Service Diagnosis

GEM Models A/W Service Diagnosis

No ice is made nothing operates. •Unit off due to no power •Restore Power

•Unit off due to master switch in OFF •Switch master Switch to ON

position

•Unit off due to low water level •Check water supply, filter

strainer, float valve. Correct

water supply.

•Unit off due to ice level sensors. •Check/clean ice level sensors.

(Photo Eyes ) blocked.

•Unit off due to scale on water level •Clean water level sensor.

sensor.

•Unit off due to high pressure control open. •Check for water interruption

(water cooled) of fan motor

failure.

•Auger motor hums but does not turn. •Auger can’t turn. Circuit board

has not yet shut it down.

•Unit is shut 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.

•Low pressure control open. •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.

•No power to circuit board. •Check harness

•Hi or low pressure cut outs

open.

•Circuit board gear motor relay will •Check/replace board.

not close.

No ice, auger motor is turning. •Compressor contactor coil is open. •Check/replace contactor.

•Compressor will not start. •Check start capacitor.

•Check start relay.

•Check compressor windings.