Attic Fan Vibration Noise

A gable attic fan is attached to the attic wall by screws and if they are loose the vibration can cause an awful noise.

Attic fan vibration noise.

Remove the current worn out bearings and replace them. Therefore take this noise issue as an indicator and step ahead to solve it right away. A newly installed attic fan vibrates. This is actually the most common noise issue with attic fans.

In order to get rid of the hum you need to either operate the fan at a low speed or replace the fan with a new one that has more blades. This can cause the fan to start making constant noise and in some cases even a loud squealing sound. The ventilator fan s blade may be a little out of balance causing it to vibrate excessively or the fan s mounting may not be secured well enough or secured too well. The mount can become loose especially on fans that are installed on the roof.

While avoiding the debate over the risk benefit why install these things at all. Besides being annoying the vibration could lead to loose. Another cause could be twigs or leaves that have clogged your system. Obviously the fan s vibration noise is being transmitted into the living area at a higher level than you re willing to accept.

In addition to bees ailion says raccoons squirrels and birds have been known to get into attics and cause noises. The lateral deflection is minimal think back massager not a ceiling fan with one blade. 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. And the first signal of any such issue is the attic fan humming noise.

The vibration is most likely the result of a wobble in the fan that could be caused by some loose screws or a fan blade out of balance. You need to secure the screws in place more tightly by rotating the screwdriver clockwise. There can be issues like motor dis function ball bearing damage and so on. A rattling noise can mean that your air conditioner is starting to deteriorate and some of its parts are loosening.

Attic fans also have small ball bearings that help lubricate the fan s movement. Due to regular wear and tear these bearings can become worn out or lose their lubrication ability. Running an attic fan isn t just running any other fan of your home. If it s loose it will wobble and vibrate against the surface creating a huge racket.

Originally posted by david cloutier.