Daikin Indoor Unit Error Codes A0 External protection device activated A1 Malfunction of indoor unit PCB A3 Malfunction of drain Level control system A4 Malfunction of freezing protection A5 High-pressure A6 Fan motor locked, overload, overcurrent...
This list of Mitsubishi Air Conditioning fault codes will give you an idea of what is wrong with your Air Conditioning system. Mitsubishi Air Conditioning Error codes: P1 Intake sensor error P2 P9 Pipe sensor error E6 E7 Indoor/outdoor unit communication...
