Hoshizaki M029-897 Low Ice Production - Possible Cause, Long Harvest Cycle, Long Freeze Cycle

Contents HoshizakiHoshizaki America, Inc Stackable Square Cuber Model IM-500SAAComplete and detailed explanation of the problem Phone 1-800-233-1940 770 Fax618 Highway 74 South Peachtree City, GA Attn Hoshizaki Technical Support DepartmentCONTENTS Important Safety Information serious injuryIndicates a situation which could result in damage to the appliance or propertyWARNING, continued I. Construction and Water/Refrigeration Circuit Diagram A. Construction1. Air-Cooled Model SAA B. Water/Refrigeration Circuit Diagram Water TankII. Sequence of Operation and Service Diagnosis A. Sequence of Operation Flow ChartShutdown and Restart Sequence Flow Chart IM Control BoardB. Sequence of Operation 1. Startup Cycle2. Harvest Cycle 3. Freeze Cycle4. Shutdown C. Service Diagnosis Table No Ice Production - Possible CauseLow Ice Production - Possible Cause Long Harvest CycleLong Freeze 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 Board1. Control Board Layout IM Control BoardPart Number P01873-01 Version 1.3A or Later 1. RESET Button 2. SERVICE 1 and SERVICE 2 ButtonsC. Control Buttons D. Control Board Settings water supply time 1 CB Setting 12 timer terminates Freeze Cycle Water Supply Time 1 Partial Drain CBFreeze Cycle Water Supply Time 2 Partial Drain CB Control Board CB Setting Menu E. Control Board Information Display 2. Use the SERVICE 1 and SERVICE 2 buttons to move through the list3. Press the RESET button to view the item’s value 4. Press the RESET button to return to listFreeze cycles interrupted by bin control shutdown example, 655,350 cycles1.0A, displays as follows F. Control Board Model Code Setting 1. Control Board Replacement2. Checking or Changing the Control Board Model Code Page G. Error Codes H. Quick Adjustments 1. Dimple Diametera To increase dimple diameter b To decrease dimple diameter2. Ice Clarity Normal PositionDrain Position IV. Refrigeration Circuit and Component Service Information A. Refrigeration Circuit Service Information1. Refrigerant Recovery 2. Brazing 3. Evacuation and Recharge R-404AB. Component Service Information Refer to illustration for assembly AssemblyJ. Pump Motor Assembly G. Water Pan AssemblyV. Maintenance VI. Preparing the Icemaker for Periods of Non-Use 1. Remove the water from the icemaker water supply line2. Drain the water tank VII. Disposal A. Specification Data VIII. Technical Information1. IM-500SAA B. Performance Data C. Wiring Diagram 1. IM-500SAA