In case the fan blades are imbalanced or bent it might call up a humming or rattling noise in the fan.
Roof fan rattling.
In case you have found any bent or unbalanced blades you should step in to fix it up.
This will definitely produce noise while the blades are rotating.
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If the blades are unbalanced you can balance them yourself.
If the fan makes a constant metal clanking noise in all probability the fan blades are imbalanced.
Attic fan roof mounted type and ceiling shutters.
There are loud banging noises coming from our attic roof.
When i was about 16 my father installed an attic power vent fan.
The electrical contractor in the equipment can also make a chattering sound which can damage other components including the compressor if allowed to continue.
You could fell the rush of air being pulled into the attic.
A rattling noise can mean that your air conditioner is starting to deteriorate and some of its parts are loosening.
Most of the noises seem to be coming from the top of the walls.
Another cause could be twigs or leaves that have clogged your system.
This is something that can occur even in regular ceiling fans as a consequence of regular use.
This will give the fan the airflow it needs.
If you have a closed off attic open a window at the other end or install one to solve this problem.
Attic fans rattling and shaking are quite common and it s a problem faced by many homeowners who have fans.
Its not all in one area.
In such cases either balance them out or replace the blades entirely.
Shut off the fan before examining the blades and see if there s a problem or not.
How i fixed our noisy roof turbine ventilator.
This happens when the fan doesn t receive enough air.
As i sit here in bed trying to get some sleep i cannot.
It s the same process for what we do in case of larger fans.
It comes from all around the room.
If the fan blades are imbalanced or bent they can hit against one another or against other parts of the fan.
The house had a removable cover to get into the attic.
This might cause due to the striking of the bent blade to other parts of the fan.
If the entrance cover was left open and the fan came on.
It literally sounds like someone punching sheetrock.