Fujitsu · Air to Water Heat Pumps
The LED on the outdoor unit flashes 24 times. This indicates a problem with the suction pressure sensor, which measures the pressure of the refrigerant returning to the compressor.
Click steps to track your progress.
Perform a full power reset of the heat pump system by turning off the main breaker for 60 seconds and then turning it back on.
Ensure the outdoor unit is clear of any obstructions that might impact its operation.
If the error persists, contact a qualified technician to diagnose or replace the suction pressure sensor.