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

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4. Operating Modes	31
a) Continuous	32
b) Energy Saving	32
c) Automatic Corrections Made During Energy Saving Operating Mode	32
E. Perimeter Frame Heater	32
III. Service Diagnosis	33
A. Alarm Codes	33
1. Alarm Display Priority	34
2. Alarm Details and Countermeasures	35
a. High Temperature Alarm (E1)	35
b. Low Temperature Alarm (E2)	36
c. Defrost Alarm (E3)	37
d. High Pressure Alarm (E4)	37
e. Clogged Filter Alarm (E7)	38
f. Defrost Temperature Sensor Malfunction Alarm (E8)	39
g. Clogged Filter Sensor Malfunction Alarm (E9)	40
h. Control Board Error Alarms (EA and ED)	41
B. Diagnosis Chart	42
C. Thermistor Check	45
IV. Removal and Replacement of Components	46
A. Service for Refrigerant Lines	46
1. Refrigerant Recovery	46
2. Brazing	46
3. Evacuation and Recharge	47
B. Removal and Replacement of Refrigeration Unit	48
C. Removal and Replacement of Compressor	48
D. Removal and Replacement of Evaporator	49
E. Removal and Replacement of Capillary Tube / Suction Line Assembly	51
F. Removal and Replacement of Thermistors	52
G. Removal and Replacement of Door Gasket	53
H. Removal and Replacement of Defrost Heater	53
I. Removal and Replacement of Control Board	54
J. Removal and Replacement of Fan Motors	55
K. Door Re-Hinging and Drawer Conversion	55
V. Cleaning and Maintenance Instructions	56
A. Cleaning	56
B. Maintenance	57
VI. Wiring Diagrams	58
A1. HUR40A, HWR40A (auxiliary code Q5 and earlier)	58
A2. HUR40A(-D), HWR40A(-D) (auxiliary code Q6 and later)	59
B. HUF40A(-D), HWF40A(-D)	60
C1. HUR68A, HWR68A (auxiliary code Q5 and earlier)	61
C2. HUR68A(-D), HWR68A(-D) (auxiliary code Q6 and later)	62
D. HUF68A(-D), HWF68A(-D)	63
E. HUR96A(-D), HWR96A(-D)	64

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Contents Superior Degree Reliability Energy Star Contents Page Dimensions Specifications Nameplate RatingsUndercounter Model Names HUR40A, HUF40A Units mm 1a. HUR40A-D, HUF40A-D HWR40A, HWF40A 2a. HWR40A-D, HWF40A-DHUR68A, HUF68A 3a. HUR68A-D, HUF68A-DHWR68A, HWF68A 4a. HWR68A-D, HWF68A-DHUR96A Units mm 5a. HUR96A-D HWR96A Units mm 6a. HWR96A-D II. General Information Construction Evaporator CaseRefrigerators Continuous Operating Mode Sequence of Operation and Timing ChartsSequence of Operation Timing Chart OperatingFreezers Continuous Operating Mode Freezers Continuous Refrigerators Energy Saving Operating Mode Defrost End Defrost thermistor reaches defrostEnergy Freezers Energy Saving Operating Mode Board Self Check Minute DelayFreezers Energy Start-Up Delay Control BoardRelay Wiring Harness K311 Thermistor Wiring Harness K151Rear FrontSettings and Diagnostics Gaining Access to Settings and DiagnosticsSwitching the Display Between Fahrenheit and Celsius F5 Temperature DisplayAdjusting the Setpoint Temperature Cabinet Temperature Correction calibration factor Settings and Diagnostics Menu Later SectionDefrost Termination Temperature F1 Defrost Interval F0Setpoint Temperature Differential F2 High Temperature Alarm Delay Time F3 Low Temperature Alarm Delay Time F4Temperature Display Scale F5 Alarm History F6Compressor Run Time F7 Operating ModesContinuous Perimeter Frame HeaterEnergy Saving III. Service Diagnosis Alarm Codes Alarm Signals Alarm Code ProblemAlarm Display Priority Error Code Priority DescriptionAlarm Details and Countermeasures High Temperature Alarm E1Reset Options Possible CausesLow Temperature Alarm E2 Defrost Alarm E3 High Pressure Alarm E4Clogged Filter Alarm E7 Defrost Temperature Sensor Malfunction Alarm E8 Clogged Filter Sensor Malfunction Alarm E9 Control Board Error Alarms EA and ED Diagnosis Chart Problem Possible Cause RemedyProblem Possible Cause Remedy Problem Possible Cause Remedy Thermistor Check IV. Removal and Replacement of Components Service for Refrigerant LinesRefrigerant Recovery BrazingEvacuation and Recharge Removal and Replacement of Refrigeration Unit Removal and Replacement of CompressorRemoval and Replacement of Evaporator Page Page Removal and Replacement of Thermistors Cabinet ThermistorDefrost Thermistor Clogged Filter Thermistor sensorRemoval and Replacement of Door Gasket Removal and Replacement of Defrost HeaterRemoval and Replacement of Control Board Removal and Replacement of Fan Motors Door Re-Hinging and Drawer ConversionCondenser Fan Motor Evaporator Fan MotorCleaning and Maintenance Instructions CleaningMaintenance Air FilterShelves Drawers115/60/1 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