NIBE · S-Series Heat Pumps
Ice is building up on the outdoor unit's fan, grille, or fan cone. This can restrict airflow, reduce efficiency, and potentially damage the fan.
Click steps to track your progress.
Activate the 'fan de-icing' function in your NIBE indoor module/control module. If the problem recurs, try 'continuous fan de-icing'.
Ensure that the air flow to S2125 is not blocked by foreign objects like leaves, snow, or debris.
Manually clear any excessive ice from the fan, grille, and fan cone if safe to do so (do not use sharp objects or hot water directly).
If ice build-up is frequent or severe, contact a NIBE service technician to check the defrosting function.