Attic fans also have small ball bearings that help lubricate the fan s movement.
Attic fan clicking noise.
Pay particular attention to the box in the ceiling.
Unfortunately there is no easy way to determine whether your fan has a loose component.
Reasons behind your attic fan humming noise reason 1 of 4.
Shut off the fan before examining the blades and see if there s a problem or not.
Blade is made of thin metal sheets in most of the household fans.
Due to excessive pressure or sudden strikes these blades might get bent or damaged.
Be as gentle as possible when cleaning the blades since exerting some pressure on them may make them imbalanced.
And there is no exception with the attic fans as well.
If the blades are unbalanced you can balance them yourself.
This problem is easy to correct and generally only requires a set of screwdrivers.
Here s how you tighten fan blade screws.
Remove the current worn out bearings and replace them.
Use a microfiber towel to clean the dust then use an all purpose cleaner to wipe the blades.
The only way to be sure is to climb up on your step ladder and check each component individually.
If the fan blades are imbalanced or bent they can hit against one another or against other parts of the fan.
This can cause the fan to start making constant noise and in some cases even a loud squealing sound.
This will definitely produce noise while the blades are rotating.
The dust may be the cause of the clicking noise being produced by your fan and cleaning it may help reduce the noise.
Due to regular wear and tear these bearings can become worn out or lose their lubrication ability.