Fujitsu · Air to Water Heat Pumps
The system detects an issue with room sensor 1, indicating it cannot accurately measure the room temperature in the primary zone.
Click steps to track your progress.
Attempt a manual fault reset via the info key on the unit's display.
Power cycle the heat pump system by turning it off at the main breaker for 60 seconds, then restoring power.
Ensure the room sensor is not covered by furniture or curtains and is away from heat sources or drafts.
Check the sensor's wiring connections for looseness, damage, or incorrect polarity (if safely accessible with power off).
If the issue persists, contact a qualified technician to test or replace the room sensor.