Hoshizaki DKM-500BAH service manual Problem Possible Cause Remedy

Page 31

Problem

Possible Cause

Remedy

 

 

4. Wiring to gear motor.

4. Check for loose

 

 

 

connection or open

 

 

 

circuit, and replace wiring

 

 

 

as needed.

 

 

 

 

 

 

5. Defective capacitor.

5. Replace.

 

 

 

 

 

 

6. Agitator rotates in

6. Check leads and reverse

 

 

reverse direction.

the connections.

 

 

 

 

 

e) Solenoid

1. Solenoid winding

1. Replace

 

 

open.

 

 

 

 

 

 

 

2. Wiring to solenoid.

2. Check for loose

 

 

 

connection or open

 

 

 

circuit, and replace wiring

 

 

 

as needed.

 

 

 

 

 

 

3. Overload due to

3. After tightening, apply

 

 

loosening screws.

thread sealant to the

 

 

 

parts.

 

 

 

 

 

f) Mechanism

1. Chain out of position

1. Place in position or

 

 

or loose.

tighten.

 

 

 

 

 

 

2. Corrosion.

2. Apply oil.

 

 

 

 

 

 

3. Key of sprocket is not

3. Place in position.

 

 

in position.

 

 

 

 

 

 

 

4. Bad alignment of

4. Readjust.

 

 

sprocket.

 

 

 

 

 

 

 

5. Foreign matter

5. Remove foreign matter.

 

 

interrupting agitator.

 

 

 

 

 

 

g) Ice Storage

1. No ice or little ice in

1. Make ice.

 

 

storage bin.

 

 

 

 

 

 

 

2. Ice bridge or block

2. Break with a poker.

 

 

formed.

 

 

 

 

 

[2] Abnormal noise.

a) Gear Motor or Gear

1. Bearing worn out.

1. Replace.

 

Head

 

 

 

2. Grease leaks.

2. Supply grease and

 

 

 

 

 

replace O-ring.

 

 

 

 

 

b) Mechanism

1. Bad setting.

1. Apply oil and readjust.

 

 

 

 

 

 

2. Bad alignment of

2. Readjust.

 

 

sprocket.

 

 

 

 

 

 

 

3. Foreign matter

3. Remove foreign matter.

 

 

interrupting agitator.

 

 

 

 

 

 

c) Solenoid

1. Overload due to

1. After tightening, apply

 

 

loosening screws.

thread sealant to the

 

 

 

parts.

 

 

 

 

 

 

2. Foreign matter on

2. Clean.

 

 

plunger.

 

 

 

 

 

31

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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 Board Layout Control Products E Control BoardControl Board Maximum Water Supply Period 6 minutes Harvest Backup Timer and Freeze TimerHigh Temperature Safety Low Water SafetyPM, SR, DV LED Lights and Audible Alarm SafetiesDefault Dip Switch Settings Controls and AdjustmentsHarvest Control Thermistor Pump-Out Timer dip switch 3 Harvest Timer dip switch 1Freeze Timer dip switch 9 Pump-Out Frequency Control dip switch 5Bin Control Machine Will Not Shut Off Bin Control TroubleshootingControl Board Check Procedure Machine Will Not StartService Switch SwitchesControl Board Replacement Control SwitchWash CirculateDKM-500BAH Wiring Diagram Timing Chart Page 110 Performance DataIV. Service Diagnosis Minute Diagnostic Procedure Ice Making Diagnostic ChartsNo Ice Production Problem Possible Cause Remedy Problem Possible Cause Remedy Evaporator is Frozen Up Abnormal Ice Low Ice ProductionDispensing OtherProblem Possible Cause Remedy Evacuation and Recharge R-404A Removal and Replacement of ComponentsService for Refrigerant Lines Refrigerant RecoveryBrazing 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 TubesRemoval and Replacement of Solenoid Removal and Replacement of Dispense SwitchCleaning Instructions VI. Cleaning and Maintenance InstructionsCleaning Procedure Icemaker Sanitizing Procedure Icemaker Sanitizing Procedure Bin Cleaning Procedure BinAir Filters Maintenance InstructionsPreparing the Icemaker for Long Storage Exterior Panels

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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