Hoshizaki 73168 service manual Shutdown and Long Storage

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C. Shutdown and Long Storage

WARNING

1.When preparing the unit for long storage, prevent the doors/drawers from closing to reduce the risk of children getting trapped.

2.To reduce the risk of electric shock, do not touch the attachment plug or switches with damp hands.

3.To unplug the unit, be sure to pull the attachment plug and do not jerk the power cord. It could be damaged and cause fire or electric shock.

4.When shutting down the unit for more than one week, move the power switch to the "OFF" position and unplug the unit.

5.Do not plug in/unplug the unit to start/stop operation. Make sure the power switch is in the "OFF" position before plugging in or unplugging the unit to help reduce the risk of electric shock.

1)Before shutting down the unit, move food into another refrigerator or freezer.

2)Open the front panel and move the power switch to the "OFF" position. The unit will shut down.

3)Unplug the unit.

4)Close the front panel.

IMPORTANT

When preparing the unit for long storage, perform the cleaning and maintenance operations detailed in "V. Cleaning and Maintenance Instructions."

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Contents Superior Degree Reliability Number Issued Revised Hoshizaki AMERICA, INC Contents Page Page Serious injury Important Safety InformationIndicates important information about the use and care UnitDimensions Specifications Nameplate RatingsII. General Information Construction Power Switch ON, Rail Cooling Switch Normal or LOW Power Switch ON, Rail Cooling Switch OFFSequence of Operation Cabinet Defrost Cool Down RestartRail Defrost Cabinet Defrost Power Switch ON, Rail Cooling Switch OFFOperation Power Switch ON, Rail Cooling Switch OFF CabinetRail Cooling Power Switch ON, Rail Cooling Switch Normal or LOW PositionCabinet and Rail Cooling Control Board Location Control BoardControl Board Layout Front RearAlarm Signal LED Display and Service Lock-OutService Menu Compressor Short Cycle ProtectionSwitch Settings Controls and AdjustmentsTemperature Display Energy Saving Mode Temperature SetpointCabinet Defrost Temperature Correction Factor Service Menu Access Service MenuService Menu Chart Control Board Check Procedure Alarm SignalsControl Board Replacement Perimeter Heater Thermistor CheckCompressor Protector Alarm Signals III. Service DiagnosisAlarm Priority Problem Reset, Corrections, and Adjustments Reset Options High Temperature Alarm E1Low Temperature Alarm E2 Cabinet Defrost Alarm E3 High Condenser Temperature Alarm clogged filter E7 Possible Causes Defrost Thermistor cabinet Malfunction Alarm E85a. Secondary Defrost Thermistor Rail, not used Condenser Thermistor Malfunction Alarm E9 Control Board Alarms EA and ED Service ChartNo Operation Cabinet Cooling Problem Possible Cause Remedy Rail Cooling Cabinet Defrost Other Service for Refrigerant Lines IV. Removal and Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge R-404A BrazingPage Refrigerant Recovery Procedure Removal and Replacement of Refrigeration System CartridgePage Refrigeration System Pump‑Down Procedure Page Defrost Thermistor Rail Thermistor Removal and Replacement of Compressor Removal and Replacement of Cabinet Evaporator Removal and Replacement of Expansion Valve Removal and Replacement of Liquid Line Valve Removal and Replacement of Condenser Cabinet Thermistor Removal and Replacement of Thermistors and ThermostatDefrost Thermistor Rail Thermistor Defrost ThermostatCondenser Thermistor clogged filter Removal and Replacement of Defrost HeaterCabinet Fan Motor Removal and Replacement of Fan MotorsRail Fan Motor Condenser Fan MotorDoor Re-Hinging and Drawer Conversion Removal and Replacement of Door GasketWork Surface Cleaning and Maintenance InstructionsExterior Rail and Rail CoverCabinet Interior Door/Drawer GasketsPower Supply Connection MaintenanceRail Condensate Pan Air FilterShutdown and Long Storage HPR100A-D Refrigeration Circuit VI. Technical InformationHPR46A-D Wiring Diagrams2a. HPR72A-D Auxiliary Code U-5 and Earlier 2b. HPR72A-D Auxiliary Code U-6 and Later Awaiting Data