Shut off the fan before examining the blades and see if there s a problem or not.
Attic fan vibration noise blades.
Attic is 1 500 sqft.
Clanking is another sign of a loose or out of balance part.
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.
In case the fan blades are imbalanced or bent it might call up a humming or rattling noise in the fan.
Crappy fan or improper mounting.
I explore ways to repair this.
Blades are essential parts of every fan and there is no difference with attic fan as well.
If the fan makes a constant metal clanking noise in all probability the fan blades are imbalanced.
This video is p.
The lateral deflection is minimal think back massager not a ceiling fan with one blade.
This might cause due to the striking of the bent blade to other parts of the fan.
This sound can also mean that the indoor blower or outdoor fan and its blades are out of balance and hitting other parts.
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.
When the outdoor fan or condenser fan blades are out of alignment the fan vibrates like it is out of balance.
This will definitely produce noise while the blades are rotating.
Besides being annoying the vibration could lead to loose.
Check for imbalanced or bent blades.
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.
1 5500cfm attic fan with thermostat and humidistat.
A newly installed attic fan vibrates.
The parts inside the sealed unit have likely failed and the compressor itself may have become loose possibly necessitating a replacement.
Manufacturer airvent inc model 53850 suggested use up to 2100sqft.
This is something that can occur even in regular ceiling fans as a consequence of regular use.
In such cases either balance them out or replace the blades entirely.
If the fan blades are imbalanced or bent they can hit against one another or against other parts of the fan.