HUF68A-D, HWF68A-D | Hoshizaki HUR40A(-D), HWR40A(-D), HUR96A(-D)

D. HUF68A(-D), HWF68A(-D)

115/60/1

Transformer Output 10V at 115V

Note: Jumper (color: white) between pins 7 and 8 of connector K151 may not be present on all units, but this will not adversely affect performance.

CAUTION

Before diagnosing and/or servicing the unit, confirm that you have the proper wiring diagram by checking against the diagram located inside the front panel.

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Hoshizaki HUR40A(-D), HWR40A(-D), HUR96A(-D), HUR68A(-D), HWR68A(-D) service manual HUF68A-D, HWF68A-D

Contents

Superior Degree Reliability Energy Star Contents Page Specifications Nameplate Ratings DimensionsUndercounter Model Names HUR40A, HUF40A Units mm 1a. HUR40A-D, HUF40A-D 2a. HWR40A-D, HWF40A-D HWR40A, HWF40A 3a. HUR68A-D, HUF68A-D HUR68A, HUF68A 4a. HWR68A-D, HWF68A-D HWR68A, HWF68A HUR96A Units mm 5a. HUR96A-D HWR96A Units mm 6a. HWR96A-D Evaporator Case II. General Information Construction Sequence of Operation and Timing Charts Refrigerators Continuous Operating ModeSequence of Operation Operating Timing Chart Freezers Continuous Operating Mode Freezers Continuous Defrost End Defrost thermistor reaches defrost Refrigerators Energy Saving Operating Mode Energy Board Self Check Minute Delay Freezers Energy Saving Operating Mode Freezers Energy Control Board Start-Up Delay Front Relay Wiring Harness K311Thermistor Wiring Harness K151 Rear Gaining Access to Settings and Diagnostics Settings and Diagnostics Temperature Display Switching the Display Between Fahrenheit and Celsius F5Adjusting the Setpoint Temperature Cabinet Temperature Correction calibration factor Later Section Settings and Diagnostics Menu Defrost Interval F0 Defrost Termination Temperature F1 Setpoint Temperature Differential F2 Low Temperature Alarm Delay Time F4 High Temperature Alarm Delay Time F3 Alarm History F6 Temperature Display Scale F5 Operating Modes Compressor Run Time F7 Perimeter Frame Heater ContinuousEnergy Saving Alarm Signals Alarm Code Problem III. Service Diagnosis Alarm Codes Error Code Priority Description Alarm Display Priority Possible Causes Alarm Details and CountermeasuresHigh Temperature Alarm E1 Reset Options Low Temperature Alarm E2 High Pressure Alarm E4 Defrost Alarm E3 Clogged Filter Alarm E7 Defrost Temperature Sensor Malfunction Alarm E8 Clogged Filter Sensor Malfunction Alarm E9 Control Board Error Alarms EA and ED Problem Possible Cause Remedy Diagnosis Chart Problem Possible Cause Remedy Problem Possible Cause Remedy Thermistor Check Brazing IV. Removal and Replacement of ComponentsService for Refrigerant Lines Refrigerant Recovery Evacuation and Recharge Removal and Replacement of Compressor Removal and Replacement of Refrigeration Unit Removal and Replacement of Evaporator Page Page Clogged Filter Thermistor sensor Removal and Replacement of ThermistorsCabinet Thermistor Defrost Thermistor Removal and Replacement of Defrost Heater Removal and Replacement of Door Gasket Removal and Replacement of Control Board Evaporator Fan Motor Removal and Replacement of Fan MotorsDoor Re-Hinging and Drawer Conversion Condenser Fan Motor Cleaning Cleaning and Maintenance Instructions Drawers MaintenanceAir Filter Shelves 115/60/1 A2. HUR40A-D, HWR40A-D auxiliary code Q6 and later HUF40A-D, HWF40A-D C1. HUR68A, HWR68A auxiliary code Q5 and earlier C2. HUR68A-D, HWR68A-D auxiliary code Q6 and later HUF68A-D, HWF68A-D HUR96A-D, HWR96A-D