Hoshizaki M029-897 service manual D. Bin Control Check and Cleaning

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D. Bin Control Check and Cleaning

D. Bin Control Check and Cleaning

1. Bin Control Check

This appliance uses a lever-actuated proximity switch to control the ice level in the storage bin. No adjustment is required.

To check, follow the steps below.

1)Turn off the power supply.

2)Remove the front panel, then move the control switch to the "OFF" position.

3)Remove the control box cover. Clear any ice away from BC.

4)Check BC wire harness connections.

5)Disconnect BC wire harness connector from CB CN11 connector.

6)Check for continuity across the wires of BC wire harness connector. When the actuator paddle is not engaged, BC switch is closed. If open, check that the wire harness connector is properly connected and that the actuator paddle is not sticking. Clean if necessary. See "II.D.2. Bin Control Cleaning." If BC switch still reads open, replace BC.

7)Press and hold the actuator paddle; check for continuity across the wires of BC wire harness connector. When the actuator paddle is engaged, BC switch is open. If closed, check that the actuator paddle is not restricted. Clean if necessary. See "II.D.2. Bin Control Cleaning." If BC switch still reads closed, replace BC.

8)Reconnect BC wire harness connector to CB CN11 connector, then move the control switch to the "ICE" position. Turn on the power supply.

9)Allow the icemaker to cycle on. Press and hold the actuator paddle for at least

10 seconds. The icemaker should shut down. If it does not, replace CB.

Note: If BC is engaged (open) while the water tank is opening after the power supply is turned on (or after the "RESET" button is pressed), shutdown does not start: Shutdown occurs 10 seconds after actuator motor's internal position sensor indicates water tank is fully open.

Legend: BC–bin control; CB–control board

Bin Control Bracket

Thumbscrew

Bin Control Cable Connector

1. Bin Control CheckManual backgroundManual background Bin Control

Fig. 1

Switch Mount

Actuator Paddle

Magnet

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Contents HoshizakiHoshizaki America, Inc Stackable Square Cuber Model IM-500SAA618 Highway 74 South Peachtree City, GA Complete and detailed explanation of the problemPhone 1-800-233-1940 770 Fax Attn Hoshizaki Technical Support DepartmentCONTENTS Indicates a situation which could result in damage to the Important Safety Informationserious injury appliance or propertyWARNING, continued 1. Air-Cooled Model SAA I. Construction and Water/Refrigeration Circuit DiagramA. Construction B. Water/Refrigeration Circuit Diagram Water TankShutdown and Restart Sequence Flow Chart II. Sequence of Operation and Service DiagnosisA. Sequence of Operation Flow Chart IM Control Board2. Harvest Cycle B. Sequence of Operation1. Startup Cycle 3. Freeze Cycle4. Shutdown C. Service Diagnosis Table No Ice Production - Possible CauseLong Freeze Cycle Low Ice Production - Possible CauseLong Harvest Cycle Slab Does Not Break Into Separate Cubes - Possible CauseCloudy Cubes - Possible Cause D. Bin Control Check and Cleaning 1. Bin Control Check2. Bin Control Cleaning E. Evaporator Thermistor Check III. Controls and Adjustments A. Control Switch B. Control BoardPart Number P01873-01 Version 1.3A or Later 1. Control Board LayoutIM Control Board C. Control Buttons 1. RESET Button2. SERVICE 1 and SERVICE 2 Buttons D. Control Board Settings Freeze Cycle Water Supply Time 2 Partial Drain CB water supply time 1 CB Setting 12 timer terminatesFreeze Cycle Water Supply Time 1 Partial Drain CB DO NOT ADJUST 3. Press the RESET button to view the item’s value E. Control Board Information Display2. Use the SERVICE 1 and SERVICE 2 buttons to move through the list 4. Press the RESET button to return to list1.0A, displays as follows Freeze cycles interrupted by bin control shutdownexample, 655,350 cycles 2. Checking or Changing the Control Board Model Code F. Control Board Model Code Setting1. Control Board Replacement Page G. Error Codes a To increase dimple diameter H. Quick Adjustments1. Dimple Diameter b To decrease dimple diameterDrain Position 2. Ice ClarityNormal Position 1. Refrigerant Recovery IV. Refrigeration Circuit and Component Service InformationA. Refrigeration Circuit Service Information 2. Brazing 3. Evacuation and Recharge R-404AB. Component Service Information J. Pump Motor Assembly Refer to illustration for assemblyAssembly G. Water Pan AssemblyV. Maintenance 2. Drain the water tank VI. Preparing the Icemaker for Periods of Non-Use1. Remove the water from the icemaker water supply line VII. Disposal 1. IM-500SAA A. Specification DataVIII. Technical Information B. Performance Data C. Wiring Diagram 1. IM-500SAA