1, the temperature difference in the fresh-keeping room is too large, and the temperature of the indoor evaporator is too low, which leads to the phenomenon of freezing in the fresh-keeping room. The problem can be solved by adjusting the temperature of the fresh-keeping room to 4-8 degrees.

2. When opening and closing the fresh-keeping room of the refrigerator, the door seal is not strict or the door is not closed for a long time, which causes the freezing phenomenon in the fresh-keeping room.

3. There was a problem with the thermostat in the fresh-keeping room, which caused the compressor to work nonstop for a long time, and then caused the fresh-keeping room to freeze.