Noisey 12 volt fan

[Gone2long]

Originally Posted by ronbo1

Hella fans get noisy and vibrate when the blades accumulate dirt. Also, you may try to isolate the fan from the bracket by using rubber washers from a bike tire.

Ronbo

Great idea. I will try this. Some of the 4 working fans are less noisy than the others, and I think this may be the reason.

Thanks again,

G2L

[Gone2long]

Originally Posted by ronbo1

Hella fans get noisy and vibrate when the blades accumulate dirt. Also, you may try to isolate the fan from the bracket by using rubber washers from a bike tire.

Ronbo

Checked and found that my fans are Hella too. Will try your fix.

Also, they are powered by a solar array. Could this be causing the fluxuations in fan velocity that I am also noticing? When some of the four fans speed up, they predictably get a bit noisier.


G2L