Hoshizaki DKM-500BAH Removal and Replacement of Thermistor, Removal and Replacement of Fan Motor

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I. Removal and Replacement of Thermistor

IMPORTANT

1.Fragile, handle very carefully.

2.Always use a recommended sealant (High Thermal Conductive Type), Model KE4560RTV manufactured by SHINETSU SILICONE, Part Code 60Y000-11, or Part Code 4A0683-01 or equivalent.

3.Always use a recommended foam insulation (non-absorbent type) or equivalent.

4.Do not shorten or cut the thermistor leads when installing it.

1)Turn off the power supply.

2)Remove the panels. Be sure to disconnect the dispense switch connector from the control box when removing the front panel.

3)Remove the control box cover.

4)Disconnect the thermistor leads from the K3 connector on the control board.

5)Remove the plastic cable ties, foam insulation, thermistor holder and thermistor.

6)Scrape away the old sealant on the thermistor holder and the suction pipe.

7)Wipe off moisture or condensation on the suction pipe.

Thermistor Lead

Cable Tie

Foam Insulation

Thermistor Holder

8)Smoothly apply recommended sealant (KE4560RTV, Part Code 60Y000-11 or 4A0683-01) to the thermistor holder concave.

9)Attach the new thermistor to the suction pipe in the same position as the previous thermistor. Be very careful to prevent damage to the leads. Secure it using the thermistor holder and recommended foam insulation.

10)Secure the insulation using the plastic cable ties.

11)Connect the thermistor leads through the bushing of the control box to the K3 connector on the control board.

Note: Do not cut the leads of the thermistor while installing it.

12)Replace the control box cover and the panels in their correct positions.

13)Turn on the power supply.

J.Removal and Replacement of Fan Motor

Note: When replacing a fan motor with defective winding, it is recommended that a new capacitor be installed.

1)Turn off the power supply.

2)Remove the panels. Be sure to disconnect the dispense switch connector from the control box when removing the front panel.38

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Contents DKM-500BAH Hoshizaki AMERICA, INC Contents Page Specifications DKM-500BAHII. General Information Construction DKM-500BAHSequence of Operation DKM-500BAH Sequence Flow Chart and Component Operation CycleControl Board Control Board Control Products E Control BoardControl Board Layout Low Water Safety Harvest Backup Timer and Freeze TimerHigh Temperature Safety Maximum Water Supply Period 6 minutesLED Lights and Audible Alarm Safeties PM, SR, DVHarvest Control Thermistor Controls and AdjustmentsDefault Dip Switch Settings Harvest Timer dip switch 1 Pump-Out Timer dip switch 3Bin Control Pump-Out Frequency Control dip switch 5Freeze Timer dip switch 9 Machine Will Not Start Bin Control TroubleshootingControl Board Check Procedure Machine Will Not Shut OffControl Switch SwitchesControl Board Replacement Service SwitchCirculate WashDKM-500BAH Wiring Diagram Timing Chart Page Performance Data 110IV. Service Diagnosis Minute Diagnostic Procedure No Ice Production Diagnostic ChartsIce Making Problem Possible Cause Remedy Problem Possible Cause Remedy Evaporator is Frozen Up Low Ice Production Abnormal IceOther DispensingProblem Possible Cause Remedy Refrigerant Recovery Removal and Replacement of ComponentsService for Refrigerant Lines Evacuation and Recharge R-404ARemoval and Replacement of Compressor BrazingRemoval and Replacement of Drier Removal and Replacement of Expansion Valve Removal and Replacement of Hot Gas ValveRemoval and Replacement of Evaporator Removal and Replacement of Condenser Removal and Replacement of Thermistor Removal and Replacement of Fan MotorRemoval and Replacement of Inlet Water Valve Removal and Replacement of Pump MotorRemoval and Replacement of Spray Tubes Removal and Replacement of Gear MotorRemoval and Replacement of Dispense Switch Removal and Replacement of SolenoidCleaning Procedure Icemaker VI. Cleaning and Maintenance InstructionsCleaning Instructions Sanitizing Procedure Icemaker Cleaning Procedure Bin Sanitizing Procedure BinExterior Panels Maintenance InstructionsPreparing the Icemaker for Long Storage Air Filters

DKM-500BAH specifications

The Hoshizaki DKM-500BAH is a high-performing ice maker renowned in the food service industry for its reliability and efficiency. This unit excels in producing crescent-style ice, which is highly sought after for its ability to chill beverages effectively while minimizing dilution. The Hoshizaki reputation for quality is well-reflected in the DKM-500BAH, making it a popular choice in restaurants, bars, and other establishments that demand high ice production capacity.

One of the standout features of the DKM-500BAH is its impressive ice production capability. This model has the capacity to produce up to 500 pounds of ice per day, ensuring that businesses with high-volume demands can meet their needs without interruption. The unit operates on a refrigerant system designed for optimal energy efficiency, which can lower operating costs and contribute to sustainability goals.

The DKM-500BAH utilizes advanced technology, including Hoshizaki's patented ice-making mechanism. This system features a stainless steel evaporator that enhances durability and ice quality. The crescent-shaped ice it produces has a slower melt rate, making it perfect for restaurants and bars that focus on customer experience. Additionally, the unit is equipped with a cycle control that ensures ice is produced consistently.

Another critical aspect of the DKM-500BAH is its user-friendly design. It features a front-facing control panel that allows for easy monitoring and adjustment of settings. A built-in diagnostics system alerts users to potential issues, enabling prompt maintenance and reducing downtime. The removable air filter is another convenience, making it simple to clean and maintain the unit’s efficiency.

Moreover, the construction of the DKM-500BAH is noteworthy. It features a corrosion-resistant stainless steel exterior that ensures longevity and maintains hygiene standards. The unit also has an insulated storage bin that holds up to 250 pounds of ice, making it an efficient solution for busy settings.

In summary, the Hoshizaki DKM-500BAH is a robust ice maker that combines high production capacity, advanced technology, and user-friendly features. Its build quality and efficient performance position it as a leader in the commercial ice-making market, making it an ideal investment for establishments requiring reliable ice supply.
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