Clean the cold room
First, turn off the power supply of the refrigerator, and then clean out the things placed in the refrigerator to keep the inside of the refrigerator clean.
Check the power supply
Secondly, connect the power supply of the refrigerator to ensure that it is in a normal power-on state. Then adjust the temperature setting of the refrigerator. The temperature setting in summer and winter is different. Set its temperature to see whether its refrigeration function is restored and whether its refrigeration effect is obvious.
Check the compressor
Then, whether there is sound in the compressor (this sound is caused by the normal operation of the refrigerant in the refrigeration system in the refrigerator), if there is sound, the compressor is working normally. If not, it means that there is something wrong with the compressor or there is too little refrigerant, which needs to be added. In both cases, maintenance personnel should be asked to repair it.
Check the refrigeration system
If there is no problem after the above test, it means that the compressor of the refrigerator is working normally, so you need to touch the side of the refrigerator to see if there is any fever. If not, it may be a refrigerant leak in the refrigeration system. This situation should be repaired in time.