Maintenance analysis of various faults of ice making machine and problems of easy breakage of ice making machine

As an indispensable electrical device in modern life, ice making machines bring great convenience to our daily lives. However, as the use time increases, the ice machine will inevitably experience various failures. This article will provide a detailed analysis of common ice machine faults and provide corresponding maintenance methods to help you easily solve ice machine problems.

1. Analysis and solutions to the problem of ice making machine not dropping ice

The ice cube is too thin:

Phenomenon: The ice cube melts on the ice tray before it is completely formed.

Cause: The ice thickness probe is improperly adjusted, resulting in insufficient ice thickness.

Solution: Adjust the ice thickness probe and turn the screw inward to make the iron plate farther away from the ice tray to increase the thickness of the ice cubes.

The ice tray is too dirty:

Phenomenon: There are stains or scale on the surface of the ice tray, which affects the ice cubes from falling off.

Solution: Use anti-scaling agent and acidic liquid to clean the ice tray to ensure the surface is clean.

Desoldering the ice tray:

Phenomenon: The metal part on the ice tray is separated from the plastic part or cracked.

Solution: If the front ice tray is desoldered, you can remove the desoldered part; if the reverse copper pipe is desoldered, it is recommended to replace the ice tray or perform welding repair.

Large amount of condensate water output:

Phenomenon: There is still a large amount of condensed water discharged during defrost.

Solution: Adjust the pressure stop valve to reduce the water output.

Defrost valve does not open:

Phenomenon: The defrost valve does not work properly, causing the ice cubes to fail to fall off.

Solution: Check whether the defrost valve can open normally. If it cannot, replace the defrost valve. If it can open, the computer board may be faulty and requires professional maintenance.

2. Failure analysis of ice making machine with little or no ice production

Reduced ice production:

Reasons: The capillary tube or expansion valve is clogged, the moisture in the system is too high causing slight ice blockage, the condensation system is clogged, the refrigerant is insufficient or leaking, and the evaporator is too dirty.

Solution: Check and clear the clogged parts one by one, replenish the refrigerant, and clean the evaporator.

Compressor works intermittently:

Reasons: Too low voltage, poor contact point, system pressure protection, compressor starter failure, dirty condenser leading to high pressure protection.

Solution: Check the power supply, replace poor contacts, check and adjust the system pressure, replace the compressor starter, and clean the condenser.

Wet ice borneol is not hard:

Reasons: The ambient temperature is too high, too much refrigerant is added, the water supply in the water distribution pan is too large, and the compressor power is insufficient.

Solution: Lower the ambient temperature, adjust the amount of refrigerant, reduce the water supply in the water distribution pan, and replace the compressor with a more powerful one.

3. Other common faults and repair methods of ice machines

Compressor works but does not cool:

Cause: Refrigerant fluid leaks or the two-way solenoid valve is damaged.

Solution: After detecting the leak, repair the leak and add refrigerant fluid or replace the solenoid valve.

Ice cubes do not fall off:

Reason: Water temperature probe failure or controller failure.

Solution: Measure the resistance of the water temperature probe and replace the controller (if the resistance is abnormal), or adjust the resistance to the normal range.

The water shortage light is on but the machine does not replenish water automatically:

Reason: There is no water in the pipeline or the water inlet solenoid valve is faulty.

Solution: Check the water inlet situation in the pipeline and open the waterway, or replace the water inlet solenoid valve.

The compressor works but the water pump does not:

Reason: The water pump is damaged or blocked by internal scale.

Solution: Clean the water pump or replace it with a new one.

The refrigeration system is not cooling or has poor cooling:

Reasons: Refrigeration system leakage, dirty blockage, compressor failure, de-icing solenoid valve air leakage, micro leakage.

Solution: Re-weld the process pipe and pressurize it to check for leaks and repair the welding, clean the dirty blockage at the capillary inlet, replace the compressor, force de-icing and tap the valve body to remove impurities or replace the valve body.

Compressor is noisy:

Reasons: There is loud internal noise in the compressor, external resonance sound, and the snap ring is decoupled.

Solution: Replace the compressor or eliminate external causes (such as pipe contact, uneven ground), and replace with a new compressor (if the snap ring is decoupled).

The easily damaged parts of the ice machine are as follows:

1. Ice full sensor

2.Ice thickness sensor

3. Temperature sensor

4·Water level sensor

5.Thermal resistance

6. Heat dissipation components

7.Water pump

8. Water inlet pump

9. Drainage pump

10.Ice machine motherboard

4. Summary

Ice machines will inevitably encounter various failures during use, but as long as you master the correct maintenance methods, you can easily solve the problems. This article provides a detailed analysis of common ice machine failures and solutions, hoping to help you better maintain and use your ice machine. If you encounter a complex or difficult-to-solve fault, it is recommended to contact professional Junhong electrical maintenance personnel for maintenance.