Prepare for the troubleshooting first thing first you have to prepare to get into the inner portion of the.
Attic fan motor making noise.
A humming noise may mean items on the fan need to be resecured.
Check for imbalanced or bent blades.
Attic fans also have small ball bearings that help lubricate the fan s movement.
P p i went into the attic almost passed out and tried to see if there were any lube points.
If the fan blades are imbalanced or bent they can hit against one another or.
Unless the fan is locked up solid.
Blower and fan noises such as squeaks squeals and rattles may be transmitted through the duct system.
Went to hd and lowes picked up a new thermostat and fan motor.
Was gone for about an hour p p came back and the fan is running.
If an object is spun at a high rate of speed without the object being balanced vibration noise shaking and extreme damage can occur.
It was running at a very low rpm.
A rubbing noise may be 2 moving parts of the fan are touching.
It would start up and then stop less than a minute later.
The blower wheel and housing will also squeal when they malfunction.
P my attic fan started squeaking this morning.
A buzzing noise can be from an electrical issue.
Detach the fan from the power source.
Attic fans gable vent fans generally aren t made to be serviced the fan is probably pressed onto the motor shaft and there s no practical way to replace it in the field.
7 essential tips 1.
The attic fan tends to makes a humming noise when it has a few blades and is running at a high speed setting.
How to quiet a noisy attic fan.
For some units this sound is normal upon start up.
Due to regular wear and tear these bearings can become worn out or lose their lubrication ability.
A grinding noise may be from a faulty motor.
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.
Remove the current worn out bearings and replace them.
Check for bent.
Make a pre assumption of the noise source at this stage you should have done some pre assumption on the.
I couldn t see any.
It could be something causing the fan blades to bind but that d make a clattering noise as in a playing card in the bicycle spokes.
A clicking noise may mean a component of the fan is loose.
Outdoor fan motors and indoor blower motors squeal loudly when they re going bad.
Even your lawn motor blade is balanced.
The internals of the electric motor and fan blade within the ceiling or attic fan are all balanced as well.
Before inspecting individual parts of your attic fan and fixing anything make.