For some units this sound is normal upon start up.
Attic fan loud noise.
This can cause the fan to start making constant noise and in some cases even a loud squealing sound.
Therefore take this noise issue as an indicator and step ahead to solve it right away.
Temp 84f at 5pm.
Attic fan making loud noise attic fans rattling and shaking are quite common and it s a problem faced by many homeowners who have fans.
The attic fan kept my house cooler by 8f compared to pre fan installation days.
If it is really bothersome to the owner the system may need to be re piped up the outside of the home.
If it s an electric fan turn the mains off.
There can be issues like motor dis function ball bearing damage and so on.
If you hear the clicking noise while the ac is running it could mean a small object has nestled its way into your blower fan so the object hits against the fan as it spins.
Outdoor fan motors and indoor blower motors squeal loudly when they re going bad.
If you have a closed off attic open a window at the other end or install one to solve this problem.
This happens when the fan doesn t receive enough air.
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.
Before inspecting individual parts of your attic fan and fixing anything make sure that the fan is detached from its power source.
And the first signal of any such issue is the attic fan humming noise.
Blower and fan noises such as squeaks squeals and rattles may be transmitted through the duct system.
Remove the current worn out bearings and replace them.
Companies that supply radon products manufacturer different style air flow mufflers.
Running an attic fan isn t just running any other fan of your home.
The blower wheel and housing will also squeal when they malfunction.
A gable attic fan is attached to the attic wall by screws and if they are loose the vibration can cause an awful noise.
Due to regular wear and tear these bearings can become worn out or lose their lubrication ability.
After attic fan installation ac still off during day.
This was observed on numerous days following the installation.
And if it s powered by solar panels turn those off instead.
You need to secure the screws in place more tightly by rotating the screwdriver clockwise.
If you can hear air flow noise through the drywall your only partial solution is installing a lower wattage fan in the attic.
