Summary of Air Conditioning Service Experience:

1: Should we replace the indoor or outdoor unit board? The problem might be located there if we need to repair the board.

Please provide the specific air conditioner model and product name, as there are many Daikin air conditioner models with different accessories.

Check for fluctuating voltage on the 3 and 0 terminals of the external machine. If there's none, the connection wire or internal computer board is faulty. If there is, the external machine board is damaged. Check the 12v and 5v voltages on the external machine board.

4: The outdoor unit's computer board for Daikin Air Conditioning is faulty. Remove the side cover of the outdoor unit and check if the p-board light is flashing. If it is, replace the internal and external connection wires. If it's not亮, the outdoor unit's p-board is likely faulty; replace it with a new one. Also, inspect whether the compressor is damaged and check the module as well.

For more information about Daikin AC service issues in Hangzhou, please call for inquiries.