Keep your exhaust ventilation fans running efficiently and smoothly to eliminate humidity, odor, and airborne particulates from your bathrooms, closets, mud room, laundry, and more.
Ventilation fans improve indoor air quality by venting moist air quickly outside, which helps to control mold and mildew growth.
Bathroom vents quickly clear steamy mirrors and create a comfortable environment. Without properly installed ventilation, rooms with high humidity can experience paint or wallpaper peeling, or costly damage to drywall and wood structures.
Shop our selection of Century, Fasco, Broan, Nutone, and Bohn exhaust fan motors. Enjoy low prices, fast delivery, and easy installation.
Each motor ships brand new and has a manufacturer's warranty.
How to Replace a Bathroom Fan Motor
The easiest way to fix a bathroom vent fan is to keep the original housing and just replace the motor.
When replacing a bathroom exhaust motor, be sure to turn off the fan at the circuit breaker or fuse box first. Then simply remove the fan cover, unplug and remove the old motor, screw the new motor in place and connect, then put the cover back on and test.
Why is my bathroom vent fan loud?
Many times, when an exhaust fan gets louder than usual or starts to rattle and click, it does not necessarily mean that the unit needs to be replaced.
It could just need a good cleaning.
Dirt and dust build up over time in the fan housing and on the fan blades. This buildup can cause imbalance or loud noise.
Before buying a replacement unit, try these steps to stop your exhaust fan from making noise:
NOTE: Before working on the exhaust fan, be sure the POWER IS OFF for safety.
- Remove the ceiling vent cover, typically attached with a screw or metal clip.
- Wash the vent cover with hot water to remove dust and dirt. Allow to dry.
- Use a vacuum and remove all dirt and dust that is in the vent housing and on the fan blades or blower wheel.
- After removing all the dirt and dust, test the vent by turning it back ON. If the vent noise is gone, the problem is fixed.
- If there is knocking after cleaning out the bathroom exhaust vent and fan or blower wheel, you will need to adjust the fan or blower wheel.
- Turn the exhaust fan OFF. Gently move the fan blades with your finger and look for any obvious signs of it being out of kilter. If you see it’s not moving straight, or it’s hitting the fan housing, then it needs an adjustment. You will need to remove the fan and then remount it. Make sure when you re-install the fan blades that you get everything completely straight or the problem will persist.
- If, after cleaning, there is vibration, then there are probably loose mounting screws or brackets.
- Turn the exhaust fan OFF and use a screwdriver to adjust the fan blade or blower wheel and tighten screws.
- Lubricate around the base of the fan blades with WD-40, or your choice of lubricant. Make sure to spin the blades around a few times while applying lubricant to make sure that it gets deep into the moving parts where the friction is greatest.
- Once your bathroom exhaust fan is no longer making any squeal or loud noises, put the dry vent cover back in place.
