Mitsubishi Electric · MSZ-FH Air Conditioners
During normal operation troubleshooting, the POWER lamp flashes seven times. This indicates a problem with the outdoor unit's control system.
Click steps to track your progress.
Turn OFF the power supply to the unit for a few minutes, then turn it back ON to attempt a reset.
If the issue persists, contact an authorized service technician for diagnosis.
This typically requires replacing the inverter P.C. board or the outdoor electronic control P.C. board.