Air conditioning service experience summary as follows:

1: Replace the indoor or outdoor unit board; the issue might be located there if the board needs repairing.

2: Please specify the air conditioner model and product name. Daikin has a variety of air conditioner models, and the accessories for the products differ.

3: Check for fluctuating voltage on the external machine's terminal 3 and 0 wire. If there is none, the connecting wire or internal PCB is faulty. If there is, the external PCB is faulty. Check for 12v and 5v voltages on the external PCB.

4: The Daikin AC outdoor unit's computer board is faulty. Remove the side cover of the outdoor unit and check if the p board light blinks. If it does, replace the internal and external connection wires. If it doesn't light up, the outdoor unit's p board is likely faulty, so replace it with a new one. Also, check if the compressor is damaged, and inspect the module as well.

For more information on Hangzhou Daikin air conditioning services, please call for inquiries.