Bathroom Fan Not Working Well

Bathroom ceiling fan troubleshooting tips motor not running.

Bathroom fan not working well. It sounds like maybe the fan flow is hitting an obstruction that s deflecting part of the air back into the bathroom. Remove the grille and try to find and clear the clog with a brush preferably one that s specifically for cleaning ducts. It could be that bad suction is not caused by the motor. You can replace a dead motor without tearing out the ceiling and replacing the whole thing.

Typically this may be the case if you have lived in a house a while before cleaning your bathroom extractor fan. Testing your bathroom fan let s say the circuit breaker is reset the switch is working the gfci is reset the motor is clean and oiled and the motor is not burnt out. You can also improve venting and prevent roof rot by running the vent through the roof and not leave it in the attic as was done by many contractors. Negative pressure ventilation believe it or not your bathroom extractor fans and your kitchen extractors are negative pressure systems.

A working fan will grasp it tightly. If the bathroom fan motor won t run run either the motor is burned out or the electrical power to. It sounds like maybe the fan flow is hitting an obstruction that s deflecting part of the air back into the bathroom. You flip the switch and it turns on but it s still not working.

Remove the cover and use a flashlight to examine the fan blades for dust and debris. The accumulation of dust in the fan blades is one of the most common problems that may cause the bathroom extractor fan to stop working. If it doesn t there might be a blockage in the duct connecting to the exhaust fan. No bath fans should not be blowing air into the bathroom.

Grinding or squealing motor. Bathroom fan motors that grind or squeal as they run may have dry bearings.