Bathroom exhaust fan making loud noise. There is a build-up of dust and debris in the fan. It could be the fan itself. I am adding bathroom fans to the house I recently moved into. Noisy or broken bathroom exhaust fan. Turn off the power to the fan remove the grill grasp the fan and wiggle it. If you hear a banging or clanging noise coming through your bathroom fan when its windy it is likely that the wind is picking up the vent flap and hitting it continuously with a banging noise. That fan sounded like a airplane.
Lack of proper lubrication. You can often tell if this is the cause if there is vibration on the ceiling and walls as well. A loud fan may be good for masking bathroom noise but the jet engine roar is downright annoying the rest of the time. As you can see there are plenty of reasons why you have a noisy. The motor shaft should not move at all. Quick video showing how to stop your bathroom exhaust cover from making a loud buzzing noise. To determine if the bearings are worn out wiggle the motor shaft back and forth.
The motor shaft should not move at all. Quick video showing how to stop your bathroom exhaust cover from making a loud buzzing noise. Now it opens when its turned on and makes ZERO flapping noise when its not.
All I had to do was loosen the mounting screws in the ceiling joists. A loud fan may be good for masking bathroom noise but the jet engine roar is downright annoying the rest of the time. When the fan loosens the vibration generated by the motor and fan will not be retained. However over time you might notice that the bathroom fan is becoming louder sometimes making unpleasant squeaking noises. What if the bathroom exhaust is making noise but it isnt a windy day.