What to do if my Mitsubishi Electric Mr.Slim PLH18 Air Conditioner unit will not start?
- EErnest WilliamsJul 31, 2025
If your Mitsubishi Electric Air Conditioner won't start, check these potential causes: * Ensure the main power switch is turned on and then press the POWER ON/OFF button. * Replace the main power fuse if it has blown. * Reset the outdoor unit’s ground fault breaker if it's open. * If there was a power cut, wait until power is restored and then press the POWER ON/OFF button.