Ice-O-Matic GEM1256A/W Service Diagnosis, Symptom, Possible Cause, Probable Correction, Page

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GEM0650/0956/1256 A/W		Service Diagnosis
Symptom	Possible Cause	Probable Correction
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) or 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.

No ice, auger motor is turning.

•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.

•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.

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Contents GEM0650A/W,GEM0956A/W and GEM1256A/W SERVICE AND INSTALLATION MANUALGEM0655 Air Page GEM0650/0956/1256 A/W ForwardKeep this manual for future reference PageTable Of Contents Table of ContentsFreight Claim Procedure Inspect PromptlyVisible Loss or Damage Concealed Loss or DamageWarranty ICE-O-MaticLimitation of Warranty Filing a ClaimFor the Installer Installation GuidelinesElectrical Specifications AdjustmentsFor The Installer GEM0650/0655/0956A/WGEM1256A/W Ice Machine Specifications Bin ApplicationLocation Storage BinIce machine Water LimitationsGEM 0650/0956/1256 A/W For the Plumber Water InletWATER COOLED MODELS AIR COOLED MODELSFor the Electrician Electrical ConnectionsWater Cooled Models Air Cooled ModelsGEM0650/0956/1256A/W Final Check ListPre-StartInspection Start UpStart Up Component Description Air Cooled Model ShownGEM0650/0956/1256 A/W Component Description Ice Sweep Bearing Breaker/Divider Auger Evaporator Motor Water SealTo Reset Electrical SequenceElectrical Sequence Shut DownOperation Water Water SystemHigh Pressure Cut Out- Automatic Reset Low Pressure Cut Out- Automatic ResetOperation: Performance Typical Low Side PressureSanitizing and Cleaning ICE MAKING SYSTEM: In place cleaningscheduled at a minimum of twice a year KEEP OUT OF THE REACH OF CHILDRENBearing Maintenance Bearing MaintenanceNote Left Hand Threads Bin Control Sensor Sensor MaintenanceWater Sensor Maintenance Air Cooled Clean the air cooled condenserGEM0956 GEM0650Auger Maintenance 1. Disconnect electrical power to the ice machineAuger 2. Turn off the water supply to the ice machineService Diagnosis SymptomPossible Cause Probable CorrectionService Diagnosis Control System Diagnostics 4.High pressure cut out checkWater Reservoir R&R- Water Reservoir, Bin ControlBin Controls Ice Level Sensors To Remove the Breaker Bearing Assembly R&R-Bearingand BreakerR&R-Auger To Remove the AugerR&R-WaterSeal To Remove the Water SealRemoval of the Water Seal To Replace the Water SealTo Replace the Evaporator R&R-EvaporatorTo Reassemble the Evaporator and Auger To Remove and Repair the Gear Motor Assembly R&R-GearMotorTo Check the Gear Motor To Inspect the Gear MotorR&R-FanBlade and Motor Refrigeration Service Instructions for Liquid Charging R404AGEM0650 Wiring Diagram Wiring Diagram GEM0650 A/WGEM0956 Wiring Diagram Wiring Diagram GEM0956 A/WGEM1256 Wiring Diagram Wiring Diagram GEM1256 A/WGEM0655 Wiring Diagram Wiring Diagram GEM0655 AirService History What to Do Before Calling for Service