1. The power to the refrigerator should be cut off first. 2. If there is a problem with the sealing strip, the sealing strip should be replaced in time. 3. You can adjust the refrigerator settings. 4. It may be caused by opening the refrigerator door too frequently. Do not always open the refrigerator door. Relevant knowledge: 1. If the refrigerator door is not closed tightly, causing severe freezing, you should first cut off the power of the refrigerator, and then use a hair dryer or electric fan to blow towards the frozen area in the freezer to remove the frozen area. Melt as quickly as possible. You can also put a bowl of hot water in the refrigerator and close the refrigerator door. After a period of time, the ice cubes in the refrigerator will melt. After the ice cubes melt, wipe off the water stains with a towel. 2. If the inspection finds that the refrigerator door always cannot close tightly or there is a large gap after the door is closed, it may be caused by the aging of the sealing strip of the refrigerator door, and the sealing strip should be replaced in time. 3. Check whether the refrigerator setting is set too low. If the setting temperature is too low, it may cause severe freezing of the refrigerator. 4. When we put food in the refrigerator, we should try to place it as far forward as possible, especially to avoid blocking the hole at the back of the refrigerator, which will also affect the cooling of the refrigerator. 5. Do not open and close the refrigerator door too frequently, because there is a big temperature difference between the temperature inside the refrigerator and the actual temperature outside. Frequent opening and closing of the refrigerator door will affect the performance of the refrigerator.