What is the weather like at home? Is it cold?

First, it may be the lack of refrigerant after leakage (commonly known as "lack of snow"), so it is enough to add refrigerant.

Second, the power supply voltage is not enough, so the compressor can't work normally. It is recommended to install a voltage regulator.

Third, the cooling power of air conditioner is too small and the room area is too large; The room is not well insulated. These factors should be fully considered when buying air conditioners.

Fourth, the external environment temperature is too high, and the cooling time is longer than usual. ?

Five, the air conditioner is not cleaned and maintained for a long time. Clean up in time.

6. The copper pipe connecting the indoor unit and the outdoor unit is too long. Find a professional to debug.