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Hoshizaki DKM-500BAH service manual Bin Control Troubleshooting, Machine Will Not Start

Models: DKM-500BAH

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shut down the unit. However, to prevent incomplete batches of ice from forming on the evaporator, the control board will only shut down the machine within the first 5 minutes of the freeze cycle. If ice pushes the lever in after the first five minutes of the freeze cycle, the control board will allow the machine to complete the freeze cycle and the following harvest cycle before shutting down the machine.

Dip switch number 7 must be in the ON position for the control board to receive input from the bin control.

4. Bin Control Troubleshooting

a)Machine Will Not Start

1)Move dip switch no. 7 to the OFF position. If the machine starts up within a few seconds, the bin control is the likely problem. If the machine does not start up, refer to section "IV. Service Diagnosis" to verify that non-bin control related issues are resolved.

2)Check to make sure shipping tape has been removed and the wires are connected properly.

3)Check to make sure no obstruction prevents the lever from moving to the bin empty position.

4)Check proximity switch continuity to make sure it is not stuck open.

b)Machine Will Not Shut Off

1)Refer to Section "IV. Service Diagnosis" to verify that non-bin control related issues are resolved.

2)Dip switch no. 7 should be in the ON position. If the switch is in the OFF position, the control board will not receive input from the bin control.

3)Check to make sure no obstruction prevents the lever from moving to the bin full position.

4)Push the lever in within the first 5 minutes of the freeze cycle. If the machine does not shut off, check the resistance values of the resistor wire harness. You should read approximately 15.8 KΩ between the black terminal and the red terminal that connect to the K4 connector on the control board when the lever is in the bin full position (proximity switch open). If this reads approximately 7.9 KΩ, the resistors may be miswired or the proximity switch may be stuck closed. Switch the black and white wires in the terminal housing or order a replacement wire harness. If this does not resolve the problem, replace the bin control assembly.

5. Control Board Check Procedure

Before replacing a control board that does not show a visible defect and that you suspect is bad, always conduct the following check procedure. This procedure will help you verify your diagnosis.

1)Check the dip switch settings to assure that #3, 4, 7, 8, 9, & 10 are in the factory default position. Output test switch S3 should be OFF. Switches 1, 2, 5, & 6 are cleaning adjustments and the settings are flexible.

2)Turn the control switch to ICE and check for proper control voltage. If the red LED is ON, the control voltage is good. If the red LED is OFF, check the control transformer circuit.

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Hoshizaki DKM-500BAH service manual Bin Control Troubleshooting, Machine Will Not Start, Machine Will Not Shut Off
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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.