When maintaining the air conditioner, please unplug the power plug from the socket before disassembling the equipment. Operating on electrified equipment can cause electric shock. If it is necessary to turn on the power supply for maintenance or test the circuit, do not remove any live parts of the equipment. If refrigerant gas is discharged during maintenance, do not touch the discharged refrigerant gas. Refrigerant gas can cause frostbite.
After listening and reading, you can also check by touching. Touch is mainly to sense whether the temperature of each component of the air conditioner is normal during operation, so that we can check whether the fault of the air conditioner is caused by excessive temperature during operation.