Nibe · Ground Source Heat Pumps
This B alarm indicates a continuous issue with the outdoor temperature sensor. It may be due to an open/short circuit or a defective sensor. The system might be set to minimum supply temperature.
Click steps to track your progress.
Ensure the outdoor temperature sensor is properly connected.
Inspect the sensor for any damage.
Since this is an information alarm, it should reset automatically if the cause is fixed.
If the green light and service technician symbol persist, contact your installer.