When the ice maker is making ice, the refrigerant is compressed into high-pressure gas by the compressor and enters the condenser. It is condensed into liquid in the condenser and then throttled by the expansion valve and flows into the evaporator. After absorbing the heat of the water in the evaporator, it becomes a low-temperature and low-pressure gas and is then absorbed and compressed by the compressor. As ice cubes are formed, the suction pressure gradually decreases. 

Solutions to high temperature of ice machine:

1. Check the water tank behind the refrigerator to see if the defrost water flows directly into the water tank. Once it flows in, it will cause water accumulation in the refrigerator. Slightly raise the front of the refrigerator to ensure that the defrost water flows smoothly into the water tank.

2. Improper adjustment or blockage of the throttle valve and excessive or too small refrigerant flow affect the flow of refrigerant entering the evaporator. The throttle valve is too open, the greater the refrigerant flow, the evaporation pressure and temperature will gradually increase with the temperature, and the warehouse temperature will decrease slowly.

3. There is too much air and refrigerant oil in the evaporator, and more refrigerant oil is attached to the inner and outer surfaces of the evaporator outer tube. The heat transfer coefficient will decrease. There is more air in the heat transfer tube, the heat exchange area of the evaporator is small, the heat transfer power is reduced, and the warehouse temperature reduction rate gradually decreases.

4. There is a lot of frost or dust on the surface of the ice maker evaporator, and the heat transfer effect will gradually decrease.

The ice making machine is a refrigeration machine that cools water through an evaporator and generates ice. The shape of the ice generated varies depending on the principle and production method of the evaporator.