Mitsubishi Electric · Air Conditioning
The operation indicator blinks 12 times, indicating an issue with the indoor electronic control system. The unit may not be able to read data correctly from its non-volatile memory.
Haga clic en los pasos para seguir su progreso.
Visually inspect the indoor electronic control P.C. board for damage.
Ensure the board is correctly seated.
The electronic control P.C. board may need to be replaced.