Fujitsu · Air Conditioners
The red LED flashes five times and the green LED flashes two times on the indoor unit. This indicates that the Intelligent Power Module (IPM) protection circuit has activated, usually due to an internal electrical fault or stress.
Click steps to track your progress.
Turn off the power supply to the air conditioner at the circuit breaker.
Wait for 5-10 minutes to allow the unit to cool down and reset.
Restore power and attempt to restart the unit.
If the IPM protection error persists, this indicates a serious internal fault requiring a professional technician.