Fujitsu · Air to Water Heat Pumps
The hydraulic unit's green LED flashes nine times and the red LED flashes five times. This indicates a problem with detecting the compressor's rotational position or an issue during the compressor's startup sequence.
Click steps to track your progress.
Power cycle the heat pump system by turning off the main breaker for 60 seconds and then restoring power.
Ensure stable and consistent power supply to the outdoor unit.
If the error persists, contact a qualified technician immediately, as this error often points to significant issues with the compressor or inverter system requiring specialized repair.