Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki KM-1301SWH-E, KM-1301SRH-E, KM-1301SAH-E service manual No Ice Production Possible Cause

Models: KM-1301SRH-E KM-1301SWH-E KM-1301SAH-E

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No Ice Production - Possible Cause

	14. Float Switch	a) Float does not move freely.
	See "IV.D. Float Switch Check	b) Defective.
	and Cleaning."	b) Defective.
	and Cleaning."
	15. Compressor	a) Compressor relay/magnetic contactor contacts bad or coil winding
		open.

		b) Start capacitor or run capacitor defective.

		c) Internal overload protector open.

		d) Starter contacts bad or coil winding open.
		e) Protector tripped.
		f) Compressor defective.

	16. Pump Motor	a) Motor winding open.

		b) Bearing worn out or locked rotor.

		c) Defective capacitor.
		d) Mechanical seal worn out.

	17. Pump-Out Check Valve	a) Leaking by.

	18. Water System	a) Water leaks causing short freeze time.

	19. Fan Motor	a) Motor winding open.
		b) Bearing worn out or locked rotor.

		c) Defective capacitor.

	20. Liquid Line Valve (if applicable)	a) Closed in freeze cycle.

		b) Open in harvest cycle.
	21. Expansion Valve (TXV)	a) Bulb loose.

		b) Operating erratically.

	22. Headmaster (C.P.R.) (remote	a) Open out of temperature/pressure range.
	condenser unit)

	23. Water Regulating Valve	a) Insufficient water supply.
	(water‑cooled model)	b) Out of adjustment.
	See "IV.F. Adjustment of Water	b) Out of adjustment.
	See "IV.F. Adjustment of Water
	Regulating Valve."

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Hoshizaki KM-1301SWH-E, KM-1301SRH-E, KM-1301SAH-E service manual No Ice Production Possible Cause

Contents

Superior Degree Reliability Hoshizaki AMERICA, INC Contents Page Unit Important Safety InformationSerious injury Indicates important information about the use and careKM-1301SAH-E air-cooled Specifications IcemakerKM-1301SWH-E water-cooled KM-1301SRH-E remote air-cooled URC-14FE Condenser UnitSpecifications KM-1301SAH-E air-cooled II. General Information ConstructionKM-1301SWH-E water-cooled Separators Initial Harvest Cycle Sequence of OperationSequence Cycles and Shutdown Minute Fill CycleHarvest Cycle S4 Dip Switch Setting Pump-Out 1st Pump-Out FrequencyFreeze Cycle Pump-Out CycleCycle at Shutdown Mechanical Bin Control Activation Mechanical Bin Control KM-1301SWH-E, KM-1301SRH-EMechanical BC Bin Full Shutdown and Restart Sequence Flow ChartCycle Steps Minute Fill Harvest Cycle Pump-Out CycleControl Board Control Board Control Board LayoutTime LEDs are On LED Lights and Audible Alarm SafetiesNo. of Beeps Type of Alarm Every 3 sec Sequence StepHarvest Timer S4 dip switch 1 Controls and AdjustmentsDefault Dip Switch Settings Time seconds Inlet Pump-Out Timer S4 dip switch 3Pump-Out Frequency Control S4 dip switch 5 S4 Dip Switch Setting Pump Motor Time seconds Harvest Pump Timer S4 dip switchFactory Use S4 dip switch Freeze Timer S4 dip switch 9Refill Counter S5 dip switch 2 through Control SwitchFloat Switch Control S5 dip switch Tank Water Tank Headmaster Service Drier Valve Thermistor U-0 Auxiliary Code Wiring DiagramsAuxiliary Code T-0, U-0 KM-1301SAH-E air-cooledAuxiliary Code U-1 and Later PressureSwitch KM-1301SRH-E remote air-cooled Performance Data 1335 13301240 17802070 12701142 1950Diagnostic Procedure IV. Service DiagnosisPage S4 Dip Switch Setting Pump-Out 1st Pump-Out Frequency Mechanical Bin Control KM-1301SWH-E, KM-1301SRH-E Shutdown Thermostatic Bin Control KM-1301SAH-EControl Board Check Mechanical Bin Control Check Bin Control CheckThermostatic Bin Control Check KM-1301SAH-E Stacked Unit Connection Detail Single Unit Connection DetailMechanical Bin Control Cleaning Float Switch Check Float Switch Check and CleaningFloat Switch Cleaning Thermistor Check Adjustment of Water Regulating Valve water-cooled modelNo Ice Production Possible Cause Diagnostic ChartsNo Ice Production No Ice Production Possible Cause Freeze Up Possible Cause Harvest Cycle Freeze UpFreeze Up Possible Cause Freeze Cycle Long Freeze Cycle Low Ice ProductionLow Ice Production Possible Cause Long Harvest Cycle Refrigerant Recovery Replacement of ComponentsService for Refrigerant Lines Evacuation and Recharge R-404A BrazingPage Component Important Notes for Component ReplacementCleaning Procedure VI. Cleaning and MaintenanceIce Chute Float Switch Assembly Drain Plug Sanitizing Procedure Following Cleaning Procedure Remove the water from the icemaker water supply line MaintenanceDrain the water tank