Attic Fan Vibration

A newly installed attic fan vibrates.

Attic fan vibration.

Crappy fan or improper mounting. The lateral deflection is minimal think back massager not a ceiling fan with one blade. Remove the current worn out bearings and replace them. I m new to the forum and i m hoping to get some help.

The purpose of an attic fan is to lower the temperature in the attic by blowing out hot air. Attic fans also have small ball bearings that help lubricate the fan s movement. It is screwed into a plywood frame which is attached to the. Most attic fans have an in built thermostat that moderates their usage by turning them on and off depending on the temperature in the attic.

If this does not stop the noise then slide a washer over the screw so it will be positioned between the screw and the fan. A gable attic fan is attached to the attic wall by screws and if they are loose the vibration can cause an awful noise. This can cause the fan to start making constant noise and in some cases even a loud squealing sound. I have a ventilation fan installed in my attic at one gable vent.

Besides being annoying the vibration could lead to loose. Due to regular wear and tear these bearings can become worn out or lose their lubrication ability.