Exhaust Fan On Roof Making Noise

Remove the current worn out bearings and replace them.

Exhaust fan on roof making noise.

They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling. It is easy to ignore these noises however further investigation into these noises may help prevent an exhaust hood failure which could eventually lead to a multi day kitchen shut down. When the fan is turned on it draws attic insulation down from the top of the ceiling into the blower wheel. Cut through any sealer that may be present.

Lubricating the motor and even the fan blades of a bathroom exhaust fan can help keep it quiet while it does its job. A new kit from broan and nutone lets you cut fan noise almost in half meaning the fan is barely audible. Installing the new fan and motor only takes about 10 minutes with no rewiring or duct work required. I ve seen fans put in at all angles and with ceiling cutouts that don t match the fan can shape.

The kit works on most broan nutone and nautilus bathroom fans most bath fans are one of these brands. Once your bathroom exhaust fan is free of dust and dirt and no longer making any squeal or loud noises put the clean vent cover back in place. Lift up the edges of the surrounding roof shingles so you can see the edges of the vent. The only noise a running exhaust hood fan should make is the hum of the motor and any noises outside of that humming range should be taken as a warning.

Remove the screws holding the vent in place. Exhaust fan motor the exhaust fan motor bearings might be worn out. Attic fans also have small ball bearings that help lubricate the fan s movement. Climb onto the roof and locate the vent that is causing the noise.

To determine if the motor bearings are worn out try wiggling the motor shaft back and forth. Exhaust fans help ventilate the air in a room. The motor shaft should not move at all. The builder didn t seal the fan to the ceiling.

Insulation will upset the balance of the blower wheel creating noise and reducing air flow. Once the fan blade or blower wheel is spinning properly and no longer making noise use a small drop of lubricant on the motor shaft as this part can squeak and cause the noise. They are typically easier to install and won t detract from the appearance of your roof. Trouble shoot why a fan is noisy.

This can cause the fan to start making constant noise and in some cases even a loud squealing sound.