Hoshizaki DKM-500BAH Maintenance Instructions, Preparing the Icemaker for Long Storage, Condenser

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B. Maintenance Instructions

1. Exterior Panels

To keep the exterior clean, wipe occasionally with a clean and soft cloth. Use a damp cloth containing a neutral cleaner to wipe off oil or dirt buildup.

2. Air Filters

The plastic mesh air filters (located behind the louvers on either side of the unit) remove dirt and dust from the air, and keep the condenser from getting clogged. As the filters get clogged, the icemaker's performance will be reduced. Check the filters at least twice a month. When they are clogged, use warm water and a neutral cleaner to wash the filters.

3. Condenser

Check the condenser once a year and clean if required by using a brush or vacuum cleaner. More frequent cleaning may be required depending on the location of the icemaker.

C. Preparing the Icemaker for Long Storage

IMPORTANT

When shutting off the icemaker for an extended time, drain the water tank and remove the ice from the bin. The bin should be cleaned and dried. Drain the icemaker to prevent damage to the water supply line at sub-freezing temperatures, using a foot or hand pump. Shut off the icemaker until proper air temperature is resumed.

1)Turn off the power supply.

2)Remove the front panel and disconnect the connector from the control box.

3)Move the control switch on the control box to the SERVICE position. Then move the service switch to the DRAIN position.

4)Replace the front panel in its correct position.

5)Turn on the power supply for 2 minutes to allow the machine to drain.

6)Turn off the power supply.

7)Remove the front panel.

8)Move the control switch to the OFF position.

9)Close the water supply line shut-off valve.

10)Remove ice from the bin, then clean and dry the bin.

11)Reconnect the connector from the front panel to the control box and replace the front panel in its correct position.

IMPORTANT

When the icemaker is not used for two or three days, move only the control switch to the OFF position.

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Image 45 Contents
DKM-500BAH Hoshizaki AMERICA, INC Contents Page DKM-500BAH SpecificationsDKM-500BAH II. General Information ConstructionSequence of Operation Cycle DKM-500BAH Sequence Flow Chart and Component OperationControl Board Control Products E Control Board Control Board LayoutControl Board High Temperature Safety Harvest Backup Timer and Freeze TimerLow Water Safety Maximum Water Supply Period 6 minutesPM, SR, DV LED Lights and Audible Alarm SafetiesControls and Adjustments Default Dip Switch SettingsHarvest Control Thermistor Pump-Out Timer dip switch 3 Harvest Timer dip switch 1Pump-Out Frequency Control dip switch 5 Freeze Timer dip switch 9Bin Control Control Board Check Procedure Bin Control TroubleshootingMachine Will Not Start Machine Will Not Shut OffControl Board Replacement SwitchesControl Switch Service SwitchWash CirculateDKM-500BAH Wiring Diagram Timing Chart Page 110 Performance DataIV. Service Diagnosis Minute Diagnostic Procedure Diagnostic Charts Ice MakingNo Ice Production Problem Possible Cause Remedy Problem Possible Cause Remedy Evaporator is Frozen Up Abnormal Ice Low Ice ProductionDispensing OtherProblem Possible Cause Remedy Service for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge R-404ABrazing Removal and Replacement of CompressorRemoval and Replacement of Drier Removal and Replacement of Hot Gas Valve Removal and Replacement of Expansion ValveRemoval and Replacement of Evaporator Removal and Replacement of Condenser Removal and Replacement of Fan Motor Removal and Replacement of ThermistorRemoval and Replacement of Pump Motor Removal and Replacement of Inlet Water ValveRemoval and Replacement of Gear Motor Removal and Replacement of Spray Tubes Removal and Replacement of Solenoid Removal and Replacement of Dispense SwitchVI. Cleaning and Maintenance Instructions Cleaning InstructionsCleaning Procedure Icemaker Sanitizing Procedure Icemaker Sanitizing Procedure Bin Cleaning Procedure BinPreparing the Icemaker for Long Storage Maintenance InstructionsExterior Panels Air Filters