How To Tell If Your Bathroom Exhaust Fan Is Working. Options for Fixing Bathroom Ventilation Problems. If your fan motor is operating properly it will suck the paper up to the grill and hold it there.

If they are not open it means the fans are not hooked up or the fans are not strong enough or the louvers are stuck. When the fan cuts on the damper opens to let the air out. Exhausting moist bathroom air into the attic is very destructive to wooden attic structures and insulation.
This type of bath fan doesnt exhaust air to the exterior.
Make sure it is not tripped off. If you find filters when you remove the grille you have a recirculating fan. The greater the air flow the more the credit card will swing open. Second with the fan on go outdoors and take a look at the.
