Attic Fan Vibration Noise Blades

The attic fan tends to makes a humming noise when it has a few blades and is running at a high speed setting.

Attic fan vibration noise blades.

Shut off the fan before examining the blades and see if there s a problem or not. This might cause due to the striking of the bent blade to other parts of the fan. Attic is 1 500 sqft. Manufacturer airvent inc model 53850 suggested use up to 2100sqft.

A gable attic fan is attached to the attic wall by screws and if they are loose the vibration can cause an awful noise. Besides being annoying the vibration could lead to loose. Blades are essential parts of every fan and there is no difference with attic fan as well. In case the fan blades are imbalanced or bent it might call up a humming or rattling noise in the fan.

The fan blade pass frequency noise level intensity varies with the number of blades and the rotation speed of the wheel and can be expressed as bpf n t 60 1. If the fan makes a constant metal clanking noise in all probability the fan blades are imbalanced. 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. This will definitely produce noise while the blades are rotating.

The lateral deflection is minimal think back massager not a ceiling fan with one blade. When the outdoor fan or condenser fan blades are out of alignment the fan vibrates like it is out of balance. Clanking is another sign of a loose or out of balance part. This video is p.

Crappy fan or improper mounting. This is something that can occur even in regular ceiling fans as a consequence of regular use. Check for imbalanced or bent blades. The parts inside the sealed unit have likely failed and the compressor itself may have become loose possibly necessitating a replacement.

If the fan blades are imbalanced or bent they can hit against one another or against other parts of the fan. A newly installed attic fan vibrates. This sound can also mean that the indoor blower or outdoor fan and its blades are out of balance and hitting other parts. In such cases either balance them out or replace the blades entirely.

I explore ways to repair this. 1 5500cfm attic fan with thermostat and humidistat.