What happened when the alarm kept ringing after the refrigerator was powered off and restarted?

2. The refrigerator door is not closed tightly;

3, frozen liquid leakage;

4. Compressor failure;

5. Alarm when the temperature is too high.

Extended data

Observe the surface phenomenon of refrigerator when working and analyze the fault symptoms;

① Observe the frosting on the evaporator surface. If the frost on the evaporator surface is uneven or incomplete, it means that the refrigerant in the refrigeration system is insufficient and there is a leak. If the frost layer on the evaporator surface is too thick, defrost it in time or reset the defrosting time.

② Look at the cooling speed of the freezer. If the refrigeration speed is obviously lower than the original normal operation speed, it is caused by the lax closing of the refrigerator door (aging or damage of the magnetic sealing strip), insufficient refrigerant in the refrigeration system, too much dust on the condenser surface or too thick frost on the evaporator surface. All these will make the compressor work for a long time and the temperature drop slowly.

③ Check the external surface of the refrigeration system (especially the surface of the joint and evaporator). If there is oil stain on the outer surface of the refrigeration system, it means that there is leakage, which will lead to the decrease of refrigeration capacity, uneven or incomplete frost on the evaporator surface, and even the refrigeration system completely loses its refrigeration capacity.

④ Check the suction line on the compressor. If there is frost or dew on the gas pipeline, it may be that the refrigerant is charged too much, or the frost layer of the evaporator is too thick, resulting in poor evaporation of refrigerant liquid in the evaporator, and it reaches the suction pipeline to further absorb heat, evaporate, frost and dew. Severe frosting and condensation may occur on the compressor.

Regular and proper maintenance can prolong the service life of refrigerator.

1. Be sure to clean the dust on the condenser and compressor on the back or bottom of the refrigerator. You can use a vacuum cleaner or brush to remove dust. Be careful not to wipe the dust on the refrigerator and compressor with a wet cloth.

2. When the refrigerator is out of service for a long time, you should first cut off the power supply, take out all the food in the refrigerator, clean the inside and outside of the refrigerator, and open the door for several days in a row to make the refrigerator fully dry and dispel the peculiar smell in the refrigerator.

3. Check the drain pipe. If the drain pipe is blocked, water will leak into the refrigerator. Poke the drain pipe with a wire to remove the things accumulated on the drain pipe.

4. Don't neglect the cleaning of the door sealing strip. Dilute the bleach with 10 times of water, and then dip it in a toothbrush to clean it. Finally, rinse off the bleach with water. The adhesive tape is dirty and easy to age, which will affect the tightness of the refrigerator and increase power consumption.

5. Check the vibration, noise and temperature of the compressor. When touching the compressor shell during operation, there should be no obvious vibration, and the compressor should not be started obviously during the day.

6. Pay attention to check whether there are cracks in the power cord to prevent leakage.

7. Wash and dry the inside and outside of the refrigerator with warm water or neutral detergent, and open the refrigerator door for ventilation and drying for one day.

References:

Baidu encyclopedia-refrigerator