Hoshizaki 73180 service manual

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6)Freeze Cycle – BCH, GM, FM, CR, and Comp energize. NOTICE! Some units contain a sticker that states: "The bin control heater has been disconnected. DO NOT reconnect the bin control heater." In this case, leave BCH disconnected or replace BC assembly with 3A2561A03. Ice production starts 4 to 6 minutes after Comp energizes depending on ambient and water conditions. Refill: The float-operated

WV allows water into the reservoir as needed to continue the icemaking process. If the water supply is cut off or GM stops during the freeze cycle, the cold evaporator temperature causes STS to open and de‑energize all components except BCH and optional drain pump HS-0248.

Diagnosis: Check that GM, FM, and Comp energize. If not, check the power switch, STS, BC assembly, GM external protector, GM windings (check when GM is cool), GM capacitor, voltage to FM, FM windings, fan blade binding, voltage on CR, PTC relay, voltage on Comp external protector, Comp terminals, and Comp windings. If optional drain pump HS‑0248 is installed, see "IV.E. Optional Drain Pump HS-0248." If GM starts, but the auger does not turn, check the spline coupling between the auger and GM.

7)Shutdown (bin full) – Ice fills storage bin to level of BC. BC opens within 10 seconds after ice contact. BCH remains energized. GM, FM, CR, and Comp de‑energize. Diagnosis: When the icemaker is running, hold ice in contact with BC bulb. If the components fail to de‑energize within 10 seconds, check BC. See "IV.C. Bin Control Check."

Legend: BC–bin control thermostat; Comp–compressor; CR–compressor relay; FM–fan motor; GM–gear motor; STS–suction temperature safety (low water/freeze‑up safety)

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Contents 100BAF-DS 100BAF-AD 100BAF-ADDS Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Auxiliary Codes A-1 and Earlier Specifications 100BAFAuxiliary Codes A-2 and Later 100BAF-DS 100BAF-DS, 2. Auxiliary Codes A-2 and Later 100BAF-AD 100BAF-AD, 2. Auxiliary Codes A-2 and Later 100BAF-ADDS 100BAF-ADDS, 2. Auxiliary Codes A-2 and Later Front II. General Information ConstructionAuxiliary Codes Rear Auxiliary CodesIcemaking Unit Freeze Cycle Sequence of OperationFill Cycle Auxiliary Codes A-1 and Earlier Auxiliary Codes A-2 and Later Auxiliary Codes A-2 and Later Wiring DiagramIcemaker with Optional Drain Pump HS-0248 100BAF Series Performance DataDiagnostic Procedure IV. Service DiagnosisIce Production Check Page Auxiliary Codes A-2 and Later Bin Control Check Float Switch Check Lower Float white Plastic Retainer Clip Float Switch CleaningOverview Optional Drain Pump HS-0248Drain Pump Check Priming Instructions Float Switch Cleaning No Ice Production Possible Cause Startup Diagnostic ChartsShutdown Fill Cycle and Refill Cycle Shutdown Service for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge R-134a BrazingComponent Important Notes for Component ReplacementRemoval and Replacement of Evaporator Assembly Components Upper Bearing Wear Check Removal and Replacement of Extruding Head Removal and Replacement of Auger Removal and Replacement of Evaporator Page 5b. Lower Housing Page VI. Maintenance Frequency Area Task Maintenance ScheduleCleaning Solution Cleaning and Sanitizing InstructionsPage Sanitizing Solution Page Cleaning Solution Page Sanitizing Solution Storage Bin Drain Condenser Auxiliary Codes A-1 and Earlier Skip to step VII. Preparing the Icemaker for Periods of Non-UseVIII. Disposal
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