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Heidi HawkinsAug 16, 2025
What to do if the Aircare HORIZON shows 'F' before it's empty?
- KKathleen GrahamAug 16, 2025
If the refill display shows “F” before the reservoir is empty in your Aircare Humidifier, make sure the unit is set up on a level surface, both side to side and front to back. This ensures the float can properly sense the water level.