Hoshizaki KM-1301SRH-E, KM-1301SAH-E, KM-1301SWH-E Important Notes for Component Replacement

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B. Important Notes for Component Replacement

CAUTION

When replacing a component listed below, see the notes to help ensure proper operation.

Component		Notes

Compressor	Install a new start capacitor, run capacitor, and start relay.

Expansion Valve	• Attach the expansion valve bulb to the suction line in the same location as the previous
	bulb.
	• The bulb should be between the 10 and 2 o'clock position on the tube.
	• Secure the bulb with the clamp and holder, then insulate it.

Hot Gas Valve	• Replace the strainer when replacing the hot gas valve.
Liquid Line Valve	• Use copper tube of the same diameter and length when replacing valve lines.
Fan Motor	Install a new capacitor.

Pump Motor	Install a new capacitor.

Thermistor	• Attach the new thermistor to the suction line in the same location as the previous
	thermistor.
	• The thermistor should be at the 12 o'clock position on the tube.
	• Smoothly fill the recessed area of the thermistor holder with high thermal conductive
	type sealant. Hoshizaki America part number 4A0683-01 (Silicone Heat Sink Compound
	10-8108 manufactured by GC Electronics), KE-4560 RTV (manufactured by ShinEtsu
	Silicones), or equivalent are recommended.
	• Secure the thermistor with the holder, then insulate it.
	• Be very careful to prevent damage to the leads.
	Thermistor Lead	Thermistor Holder

Foam Insulation		Cable Tie

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Contents Superior Degree Reliability Hoshizaki AMERICA, INC Contents Page Indicates important information about the use and care Important Safety InformationSerious injury UnitSpecifications Icemaker KM-1301SAH-E air-cooledKM-1301SWH-E water-cooled KM-1301SRH-E remote air-cooled Condenser Unit URC-14FESpecifications II. General Information Construction KM-1301SWH-E water-cooled Separators Minute Fill Cycle Sequence of OperationSequence Cycles and Shutdown Initial Harvest CyclePump-Out Cycle S4 Dip Switch Setting Pump-Out 1st Pump-Out FrequencyFreeze Cycle Harvest CycleMechanical Bin Control KM-1301SWH-E, KM-1301SRH-E Cycle at Shutdown Mechanical Bin Control ActivationPump-Out Cycle Sequence Flow ChartCycle Steps Minute Fill Harvest Cycle Mechanical BC Bin Full Shutdown and RestartControl Board Control Board Layout Control BoardSequence Step LED Lights and Audible Alarm SafetiesNo. of Beeps Type of Alarm Every 3 sec Time LEDs are OnControls and Adjustments Default Dip Switch SettingsHarvest Timer S4 dip switch 1 Pump-Out Timer S4 dip switch 3 Pump-Out Frequency Control S4 dip switch 5Time seconds Inlet Freeze Timer S4 dip switch 9 Harvest Pump Timer S4 dip switchFactory Use S4 dip switch S4 Dip Switch Setting Pump Motor Time secondsControl Switch Float Switch Control S5 dip switchRefill Counter S5 dip switch 2 through Tank Water Tank Headmaster Service Drier Valve Thermistor KM-1301SAH-E air-cooled Wiring DiagramsAuxiliary Code T-0, U-0 U-0 Auxiliary CodeAuxiliary Code U-1 and Later PressureSwitch KM-1301SRH-E remote air-cooled Performance Data 1780 13301240 13351950 12701142 2070IV. Service Diagnosis Diagnostic ProcedurePage S4 Dip Switch Setting Pump-Out 1st Pump-Out Frequency Shutdown Thermostatic Bin Control KM-1301SAH-E Mechanical Bin Control KM-1301SWH-E, KM-1301SRH-EControl Board Check Bin Control Check Thermostatic Bin Control Check KM-1301SAH-EMechanical Bin Control Check Single Unit Connection Detail Stacked Unit Connection DetailMechanical Bin Control Cleaning Float Switch Check and Cleaning Float Switch CheckFloat Switch Cleaning Adjustment of Water Regulating Valve water-cooled model Thermistor CheckDiagnostic Charts No Ice ProductionNo Ice Production Possible Cause No Ice Production Possible Cause Freeze Up Freeze Up Possible Cause Harvest CycleFreeze Up Possible Cause Freeze Cycle Low Ice Production Low Ice Production Possible Cause Long Harvest CycleLong Freeze Cycle Replacement of Components Service for Refrigerant LinesRefrigerant Recovery Brazing Evacuation and Recharge R-404APage Important Notes for Component Replacement ComponentVI. Cleaning and Maintenance Cleaning ProcedureIce Chute Float Switch Assembly Drain Plug Sanitizing Procedure Following Cleaning Procedure Maintenance Remove the water from the icemaker water supply lineDrain the water tank