Beijing Zhigao Air Conditioning Repair Telephone provides analytical data.
Analysis and maintenance: First, open the outer shell of the outdoor unit and observe that there is no collision inside the pipe. The sound of the compressor is not loud. It is suspected to be caused by the outdoor fan. After turning off the power supply of the compressor, the noise is still too high. Then replace the fan motor, but the noise remains. After careful inspection, it was found that the fan bracket was bent and deformed. After adjusting the bracket vertically and installing the fan for trial operation, everything returned to normal and the buzzing sound disappeared.
Zhigao air conditioner outdoor unit runs with a loud buzzing noise.