Hoshizaki M029-897 C. Control Buttons, RESET Button, SERVICE 1 and SERVICE 2 Buttons

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C. Control Buttons

The control board features RESET, SERVICE 1, and SERVICE 2 Buttons

1.RESET Button

•Press briefly to go to initial harvest cycle.

•Press and hold for 3 seconds to enter control board setting mode. For details about control board settings, see "III.D. Control Board Setting Mode and Control Board Settings."

2.SERVICE 1 and SERVICE 2 Buttons

•Press the "SERVICE 1" or "SERVICE 2" button briefly to display the current freeze cycle termination temperature (Control Board Setting 2). This setting controls dimple diameter. For details about adjusting the dimple diameter, see "III.H.1. Dimple Diameter." NOTICE! Do not decrease dimple size below 3/16" (5 mm).

•Press and hold the "SERVICE 1" button for 3 seconds to enter information display and model code setting mode. For details about information display and model code setting, see "III.F. Model Code Setting Mode."

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Contents Stackable Square Cuber Model IM-500SAA HoshizakiHoshizaki America, IncAttn Hoshizaki Technical Support Department Complete and detailed explanation of the problemPhone 1-800-233-1940 770 Fax 618 Highway 74 South Peachtree City, GACONTENTS appliance or property Important Safety Informationserious injury Indicates a situation which could result in damage to theWARNING, continued A. Construction I. Construction and Water/Refrigeration Circuit Diagram1. Air-Cooled Model SAA Water Tank B. Water/Refrigeration Circuit DiagramIM Control Board II. Sequence of Operation and Service DiagnosisA. Sequence of Operation Flow Chart Shutdown and Restart Sequence Flow Chart3. Freeze Cycle B. Sequence of Operation1. Startup Cycle 2. Harvest Cycle4. Shutdown No Ice Production - Possible Cause C. Service Diagnosis TableSlab Does Not Break Into Separate Cubes - Possible Cause Low Ice Production - Possible CauseLong Harvest Cycle Long Freeze CycleCloudy Cubes - Possible Cause 1. Bin Control Check D. Bin Control Check and Cleaning2. Bin Control Cleaning E. Evaporator Thermistor Check B. Control Board III. Controls and Adjustments A. Control SwitchIM Control Board 1. Control Board LayoutPart Number P01873-01 Version 1.3A or Later 2. SERVICE 1 and SERVICE 2 Buttons 1. RESET ButtonC. Control Buttons D. Control Board Settings Freeze Cycle Water Supply Time 1 Partial Drain CB water supply time 1 CB Setting 12 timer terminatesFreeze Cycle Water Supply Time 2 Partial Drain CB IM-500SAA 4. Press the RESET button to return to list E. Control Board Information Display2. Use the SERVICE 1 and SERVICE 2 buttons to move through the list 3. Press the RESET button to view the item’s valueexample, 655,350 cycles Freeze cycles interrupted by bin control shutdown1.0A, displays as follows 1. Control Board Replacement F. Control Board Model Code Setting2. Checking or Changing the Control Board Model Code Page G. Error Codes b To decrease dimple diameter H. Quick Adjustments1. Dimple Diameter a To increase dimple diameterNormal Position 2. Ice ClarityDrain Position A. Refrigeration Circuit Service Information IV. Refrigeration Circuit and Component Service Information1. Refrigerant Recovery 3. Evacuation and Recharge R-404A 2. BrazingB. Component Service Information G. Water Pan Assembly Refer to illustration for assemblyAssembly J. Pump Motor AssemblyV. Maintenance 1. Remove the water from the icemaker water supply line VI. Preparing the Icemaker for Periods of Non-Use2. Drain the water tank VII. Disposal VIII. Technical Information A. Specification Data1. IM-500SAA B. Performance Data 1. IM-500SAA C. Wiring Diagram