Hoshizaki M029-897 Phone 1-800-233-1940 770 Fax, Highway 74 South Peachtree City, GA

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Phone: 1-800-233-1940; (770) 487-2331

WARNING

Only qualified service technicians should install and service the appliance. To obtain the name and phone number of your local Hoshizaki Certified Service Representative, visit www.hoshizaki.com. No service should be undertaken until the technician has thoroughly read this Service Manual. Failure to service and maintain the appliance in accordance with this manual will adversely affect safety, performance, component life, and warranty coverage and may result in costly water damage. Proper installation is the responsibility of the installer. Product failure or property damage due to improper installation is not covered under warranty.

Hoshizaki provides this manual primarily to assist qualified service technicians in the service of the appliance.

Should the reader have any questions or concerns which have not been satisfactorily addressed, please call, send an e-mail message, or write to the Hoshizaki Technical Support Department for assistance.

Phone: 1-800-233-1940; (770) 487-2331

Fax: 1-800-843-1056; (770) 487-3360

E-mail: techsupport@hoshizaki.com

HOSHIZAKI AMERICA, INC.

618 Highway 74 South

Peachtree City, GA 30269

Attn: Hoshizaki Technical Support Department

Web Site: www.hoshizaki.com

NOTE: To expedite assistance, all correspondence/communication MUST include the following information:

•Model Number

•Serial Number

•Complete and detailed explanation of the problem.

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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