Manuals
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Hoshizaki
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Kitchen Appliance
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Refrigerator
Hoshizaki
73168
service manual
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73168
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Service Menu Chart
Alarm Signal
Dimension
Maintenance
Reset Options
Control Board Check Procedure
Controls and Adjustments
Refrigerant Recovery
Temperature Setpoint
Safety
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3.
HPR100A(-D)
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Contents
Superior Degree Reliability Number Issued Revised
Hoshizaki AMERICA, INC
Contents
Page
Page
Indicates important information about the use and care
Important Safety Information
Serious injury
Unit
Specifications Nameplate Ratings
Dimensions
II. General Information Construction
Power Switch ON, Rail Cooling Switch OFF
Power Switch ON, Rail Cooling Switch Normal or LOW
Sequence of Operation
Cool Down Restart
Cabinet Defrost
Cabinet Defrost Power Switch ON, Rail Cooling Switch OFF
Rail Defrost
Power Switch ON, Rail Cooling Switch OFF Cabinet
Operation
Power Switch ON, Rail Cooling Switch Normal or LOW Position
Rail Cooling
Cabinet and Rail Cooling
Control Board
Control Board Location
Front Rear
Control Board Layout
Service Menu
LED Display and Service Lock-Out
Alarm Signal
Compressor Short Cycle Protection
Controls and Adjustments
Switch Settings
Temperature Display
Temperature Setpoint
Energy Saving Mode
Cabinet Defrost
Temperature Correction Factor
Service Menu
Service Menu Access
Service Menu Chart
Alarm Signals
Control Board Check Procedure
Control Board Replacement
Thermistor Check
Perimeter Heater
Compressor Protector
III. Service Diagnosis
Alarm Signals
Alarm Priority Problem Reset, Corrections, and Adjustments
High Temperature Alarm E1
Reset Options
Low Temperature Alarm E2
Cabinet Defrost Alarm E3
High Condenser Temperature Alarm clogged filter E7
Defrost Thermistor cabinet Malfunction Alarm E8
Possible Causes
5a. Secondary Defrost Thermistor Rail, not used
Condenser Thermistor Malfunction Alarm E9
Service Chart
Control Board Alarms EA and ED
No Operation
Cabinet Cooling
Problem Possible Cause Remedy
Rail Cooling
Cabinet Defrost
Other
IV. Removal and Replacement of Components
Service for Refrigerant Lines
Refrigerant Recovery
Brazing
Evacuation and Recharge R-404A
Page
Removal and Replacement of Refrigeration System Cartridge
Refrigerant Recovery Procedure
Page
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
Removal and Replacement of Thermistors and Thermostat
Cabinet Thermistor
Defrost Thermistor
Defrost Thermostat
Rail Thermistor
Removal and Replacement of Defrost Heater
Condenser Thermistor clogged filter
Removal and Replacement of Fan Motors
Cabinet Fan Motor
Condenser Fan Motor
Rail Fan Motor
Removal and Replacement of Door Gasket
Door Re-Hinging and Drawer Conversion
Cleaning and Maintenance Instructions
Work Surface
Cabinet Interior
Rail and Rail Cover
Exterior
Door/Drawer Gaskets
Rail Condensate Pan
Maintenance
Power Supply Connection
Air Filter
Shutdown and Long Storage
Refrigeration Circuit VI. Technical Information
HPR100A-D
Wiring Diagrams
HPR46A-D
2a. HPR72A-D Auxiliary Code U-5 and Earlier
2b. HPR72A-D Auxiliary Code U-6 and Later
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