Hoshizaki KM-1301SAH-E, KM-1301SRH-E, KM-1301SWH-E instruction

(2) Mechanical Bin Control (KM-1301SWH-E, KM-1301SRH-E)

When mechanical BC is activated (BC open), the yellow "BC OPEN" LED comes on. The unit then shuts down as outlined in the table below.

Cycle at	Shutdown
Mechanical Bin
Control Activation

Fill Cycle	15 seconds after activation.
Harvest Cycle	At the end of the harvest cycle, or up to 15 seconds into the freeze cycle if activated
	at the end of the harvest cycle.

Freeze Cycle	15 seconds after activation if activated at least 15 seconds before the 5-minute short
	cycle protection timer terminates. Otherwise, at the end of the next harvest cycle.

Legend: BC–bin control; CB–control board; Comp–compressor; FM–fan motor; FMR–fan motor‑remote; F/S–float switch; HGV–hot gas valve; LLV–liquid line valve; PM–pump motor; WV–inlet water valve

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Hoshizaki KM-1301SAH-E service manual Mechanical Bin Control KM-1301SWH-E, KM-1301SRH-E

Contents

Superior Degree Reliability Hoshizaki AMERICA, INC Contents Page Important Safety Information Serious injuryIndicates important information about the use and care Unit Specifications Icemaker KM-1301SAH-E air-cooled KM-1301SWH-E water-cooled KM-1301SRH-E remote air-cooled Condenser Unit URC-14FE Specifications II. General Information Construction KM-1301SWH-E water-cooled Separators Sequence of Operation Sequence Cycles and ShutdownMinute Fill Cycle Initial Harvest Cycle S4 Dip Switch Setting Pump-Out 1st Pump-Out Frequency Freeze CyclePump-Out Cycle Harvest Cycle Mechanical Bin Control KM-1301SWH-E, KM-1301SRH-E Cycle at Shutdown Mechanical Bin Control Activation Sequence Flow Chart Cycle Steps Minute Fill Harvest CyclePump-Out Cycle Mechanical BC Bin Full Shutdown and Restart Control Board Control Board Layout Control Board LED Lights and Audible Alarm Safeties No. of Beeps Type of Alarm Every 3 secSequence Step Time LEDs are On Default Dip Switch Settings Controls and AdjustmentsHarvest Timer S4 dip switch 1 Pump-Out Frequency Control S4 dip switch 5 Pump-Out Timer S4 dip switch 3Time seconds Inlet Harvest Pump Timer S4 dip switch Factory Use S4 dip switchFreeze Timer S4 dip switch 9 S4 Dip Switch Setting Pump Motor Time seconds Float Switch Control S5 dip switch Control SwitchRefill Counter S5 dip switch 2 through Tank Water Tank Headmaster Service Drier Valve Thermistor Wiring Diagrams Auxiliary Code T-0, U-0KM-1301SAH-E air-cooled U-0 Auxiliary Code Auxiliary Code U-1 and Later PressureSwitch KM-1301SRH-E remote air-cooled Performance Data 1330 12401780 1335 1270 11421950 2070 IV. 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-E Control Board Check Thermostatic Bin Control Check KM-1301SAH-E Bin Control CheckMechanical Bin Control Check Single Unit Connection Detail Stacked Unit Connection Detail Mechanical Bin Control Cleaning Float Switch Check and Cleaning Float Switch Check Float Switch Cleaning Adjustment of Water Regulating Valve water-cooled model Thermistor Check No Ice Production Diagnostic ChartsNo Ice Production Possible Cause No Ice Production Possible Cause Freeze Up Freeze Up Possible Cause Harvest Cycle Freeze Up Possible Cause Freeze Cycle Low Ice Production Possible Cause Long Harvest Cycle Low Ice ProductionLong Freeze Cycle Service for Refrigerant Lines Replacement of ComponentsRefrigerant Recovery Brazing Evacuation and Recharge R-404APage Important Notes for Component Replacement Component VI. Cleaning and Maintenance Cleaning Procedure Ice Chute Float Switch Assembly Drain Plug Sanitizing Procedure Following Cleaning Procedure Maintenance Remove the water from the icemaker water supply line Drain the water tank