The outdoor unit of air conditioning refrigeration does not turn.

It may be that the contactor of the air conditioner has failed, or it may be caused by insufficient voltage during the operation of the air conditioner. In addition, the damage of the air conditioning control transformer and the failure of the computer board will cause the air conditioning unit not to rotate in the cooling mode. If the contactor fails, it needs to be repaired. Treatment method of air conditioning refrigeration external machine not rotating: 1. The control transformer is damaged, which leads to the non-rotation of the air conditioning refrigeration unit. It is necessary to cut off the air conditioning power supply, disassemble the transformer and measure the resistance value of the transformer coil. If it is found that the resistance values are different, it is necessary to replace a new transformer, and then turn on the power again, so that the outdoor unit of the air conditioner can resume its rotation. 2. Check whether the rheostat outside the air conditioner is damaged, and disassemble the machine shell for testing. If the fuse inside the machine is black, it needs to be replaced. Attention should be paid to unplugging the air conditioning power plug as far as possible in thunderstorm weather to avoid damaging the rheostat when the external machine is struck by lightning. 3. The failure of the computer board of the air conditioner will also cause the external unit of the air conditioner to be unable to rotate, so it is necessary to carry out professional testing on the computer board of the air conditioner, and it is best to contact the professionals of after-sales or maintenance of the air conditioner to operate and detect the failure of specific parts of the computer board for specific maintenance. 4. The bearing of the fan blade of the outdoor unit of the air conditioner is seriously worn or the outdoor unit can't rotate due to foreign objects embedded and stuck. Just replace the bearing and clean the foreign matter accordingly.