I was investigating why this thing was so noisy and why I had water droplets collecting on the ceiling around it. I found that the fan was actually running backwards. It was not blowing the air out but trying to pull the air in.
Thank you for your question on the AR80LX ventilation fan with light. Our fan motors are not capable of running backwards. If you are experiencing air blowing into the room, this usually indicates a stuck damper, improper duct size or duct work, or an issue with the wall cap or roof cap. An immediate elbow right off the housing can also cause this. We would recommend that you contact our Technical Support Department directly at 800-637-1453 for further discussion.
Date published: 2017-01-16