Hoshizaki HWR40A(-D), HUR96A(-D), HUR68A(-D), HUR40A(-D) Freezers Continuous Operating Mode

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2. Freezers – Continuous Operating Mode

a) Sequence of Operation

POWER ON

Board Self Check

1.Frame heater(s) on

2.Evaporator fan(s) on

2 minute delay

1.Compressor start-up

2.Condenser fan start-up

Cycle Off (Cut-out temperature reached) [Minimum 2 minutes]

1.Compressor off

2.Condenser fan off

Cycle On (Cut-on temperature reached) [Minimum 2 minutes]

1.Compressor start-up

2.Condenser fan start-up

Continue as normal cycling

Defrost Start Preprogrammed time interval

1.Compressor off

2.Evaporator fan(s) off

3.Condenser fan off

4.Defrost heater on

5. "dF" displayed

Defrost end Defrost thermistor reaches defrost termination temperature, or defrost timer reaches 1 hour Defrost heater off

Five minutes after defrost heater off

1.Compressor on

2.Condenser fan on

Five minutes after compressor start-up

1. Evaporator fan(s) on

Eight minutes after evaporator fan start‑up "dF" no longer displayed, cabinet temperature displayed

Note:

1)Cut-on, cut-off, and cabinet temperature are read by the same sensor, called the "cabinet thermistor."

2)The defrost thermistor reads the evaporator temperature.

3)There is a five second evaporator fan startup delay when the compressor and fan would otherwise start together.

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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, HWF40A3a. HUR68A-D, HUF68A-D HUR68A, HUF68A4a. HWR68A-D, HWF68A-D HWR68A, HWF68AHUR96A Units mm 5a. HUR96A-D HWR96A Units mm 6a. HWR96A-D Evaporator Case II. General Information ConstructionSequence of Operation and Timing Charts Refrigerators Continuous Operating ModeSequence of Operation Operating Timing ChartFreezers Continuous Operating Mode Freezers Continuous Defrost End Defrost thermistor reaches defrost Refrigerators Energy Saving Operating ModeEnergy Board Self Check Minute Delay Freezers Energy Saving Operating ModeFreezers Energy Control Board Start-Up DelayFront Relay Wiring Harness K311Thermistor Wiring Harness K151 RearGaining Access to Settings and Diagnostics Settings and DiagnosticsTemperature Display Switching the Display Between Fahrenheit and Celsius F5Adjusting the Setpoint Temperature Cabinet Temperature Correction calibration factor Later Section Settings and Diagnostics MenuDefrost Interval F0 Defrost Termination Temperature F1Setpoint Temperature Differential F2 Low Temperature Alarm Delay Time F4 High Temperature Alarm Delay Time F3Alarm History F6 Temperature Display Scale F5Operating Modes Compressor Run Time F7Perimeter Frame Heater ContinuousEnergy Saving Alarm Signals Alarm Code Problem III. Service Diagnosis Alarm CodesError Code Priority Description Alarm Display PriorityPossible Causes Alarm Details and CountermeasuresHigh Temperature Alarm E1 Reset OptionsLow Temperature Alarm E2 High Pressure Alarm E4 Defrost Alarm E3Clogged 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 ChartProblem Possible Cause Remedy Problem Possible Cause Remedy Thermistor Check Brazing IV. Removal and Replacement of ComponentsService for Refrigerant Lines Refrigerant RecoveryEvacuation and Recharge Removal and Replacement of Compressor Removal and Replacement of Refrigeration UnitRemoval and Replacement of Evaporator Page Page Clogged Filter Thermistor sensor Removal and Replacement of ThermistorsCabinet Thermistor Defrost ThermistorRemoval and Replacement of Defrost Heater Removal and Replacement of Door GasketRemoval and Replacement of Control Board Evaporator Fan Motor Removal and Replacement of Fan MotorsDoor Re-Hinging and Drawer Conversion Condenser Fan MotorCleaning Cleaning and Maintenance InstructionsDrawers MaintenanceAir Filter Shelves115/60/1 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