Nov 12, 2021
What will happen if the aluminum defrost heater of the refrigerator is broken?
When the refrigerator has a defrosting failure in the defrosting system, the whole machine has poor cooling. The following 3 types of failure phenomena may occur.
1. No defrosting at all, and the entire evaporator is full of frost.
2. The part of the evaporator near the heating tube is defrosted normally, and the left and right sides and the top farther from the heating tube are full of frost.
3. The frost layer of the evaporator is normal, and the water tank to the bottom of the evaporator is full of ice.
Specific reasons and troubleshooting methods:
1. Observe whether the defrost load failure indicator light is flashing.
A. If there is no fault indicator light flashing, it means that the defrosting information terminal is faulty. Generally, it is the fault of the evaporator temperature sensor and its circuit short circuit and leakage.
B. If the fault indicator light flashes, it means that the defrosting load is faulty. Generally, the defrost heating pipe is open or its circuit is open. Pay special attention to whether the fit between the defrost heating tube inserter and the socket is tight.
4.When the frost layer has not been completely removed, the resistance value of the defrosting temperature sensor has dropped to the level of exiting the defrosting.
5.The heating temperature of the water tank is not enough during defrosting.
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