Hoshizaki KM-1301SWH-E Single Unit Connection Detail, Stacked Unit Connection Detail

Page 41

7)Press the actuator paddle, check for continuity across the wires of the red connector. When the actuator paddle is engaged, the mechanical bin control switch is open.

If closed, check that the actuator paddle is not restricted. Clean if necessary. See

"IV.C.2.b) Mechanical Bin Control Cleaning." If the mechanical bin control switch still reads closed, replace the mechanical bin control.

8)Reconnect the red connector to the control board RED K4 connector, then move the control switch to the "ICE" position. Turn on the power supply.

9)Check that the green "BC CLOSED" LED on the control board is on.

10)Allow the unit to cycle on. Press and hold the actuator paddle. The yellow "BC OPEN"

LED should be on and the unit should shut down according to the chart below. If it does not, replace the control board.

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.

Single Unit Connection Detail

Wire Harness Connector B (for upper unit)

Wire

Bin Control

Harness

Cable Connector

Connector A

Control Board

Red K4

Connector

Actuator Paddle

Stacked Unit Connection Detail

Upper Unit Wire Harness

Connector B (not used)

Upper

Unit Wire

Lower Unit Wire Harness

Harness

Connector A

Connector B

Control Board

Red K4

Connector

Actuator Paddle

Fig. 1

41

Image 41

Contents

Superior Degree Reliability Hoshizaki AMERICA, INC Contents Page Serious injury Important Safety InformationIndicates important information about the use and care UnitKM-1301SAH-E air-cooled Specifications IcemakerKM-1301SWH-E water-cooled KM-1301SRH-E remote air-cooled URC-14FE Condenser UnitSpecifications II. General Information Construction KM-1301SWH-E water-cooled Separators Sequence Cycles and Shutdown Sequence of OperationMinute Fill Cycle Initial Harvest CycleFreeze Cycle S4 Dip Switch Setting Pump-Out 1st Pump-Out FrequencyPump-Out Cycle Harvest CycleCycle at Shutdown Mechanical Bin Control Activation Mechanical Bin Control KM-1301SWH-E, KM-1301SRH-ECycle Steps Minute Fill Harvest Cycle Sequence Flow ChartPump-Out Cycle Mechanical BC Bin Full Shutdown and RestartControl Board Control Board Control Board LayoutNo. of Beeps Type of Alarm Every 3 sec LED Lights and Audible Alarm SafetiesSequence Step Time LEDs are OnHarvest 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 Factory Use S4 dip switch Harvest Pump Timer S4 dip switchFreeze Timer S4 dip switch 9 S4 Dip Switch Setting Pump Motor Time secondsRefill Counter S5 dip switch 2 through Control SwitchFloat Switch Control S5 dip switch Tank Water Tank Headmaster Service Drier Valve Thermistor Auxiliary Code T-0, U-0 Wiring DiagramsKM-1301SAH-E air-cooled U-0 Auxiliary CodeAuxiliary Code U-1 and Later PressureSwitch KM-1301SRH-E remote air-cooled Performance Data 1240 13301780 13351142 12701950 2070Diagnostic 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