In summer, the ambient temperature is very high, but the temperature in the freezer is very low. When people open the refrigerator frequently, there will be an obvious temperature difference between the inside and outside of the refrigerator, and the water vapor in the environment will suddenly get cold in the freezer of the refrigerator, which will turn into frost. If it is not handled in time, it will form a thick layer of ice over time.

Frost often occurs in the freezer of the refrigerator, which consumes a lot of electricity and takes up a lot of space in the freezer. Here I'll tell you a little trick to keep the refrigerator from frosting: first, defrost the freezer, and then coat the inner wall of the freezer with a layer of cooking oil, so that the refrigerator won't frost.

The temperature on the back side is relatively low, generally below zero. The causes are as follows: too many things are refrigerated, which blocks the internal gas flow. In addition, its refrigeration is intermittent, and it can freeze during the refrigeration period.

There is no vent hole in the general refrigerator freezer. The so-called vent hole is actually a drain hole, and the water flows to the top water tray of the compressor. The heat generated by the compressor makes the water evaporate, and the reason for freezing at the vent hole is that the drain pipe is blocked, which can be dredged with 1.5-meter copper core wire.