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Old 04-20-2010, 09:20 PM   #1
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humming ceiling fans


Anybody know what causes humming in a ceiling fan. Several are doing it These are 25 year old Hunter Originals which were converted from 2 to 3 speed. Thanks,

Peyton

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Old 04-20-2010, 09:41 PM   #2
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Humming is usually caused by poorly wound motors. This is the same reason you can't put variable-speed controls on a "cheapo" fan.

As far as Hunter goes, I think they actually have their own specific brand of controls that they recommend.

What exactly did you upgrade from 2- to 3-speed? Wallbox control (what brand)? Fan model?

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Old 04-20-2010, 09:56 PM   #3
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Quote:
Originally Posted by brich View Post
Humming is usually caused by poorly wound motors. This is the same reason you can't put variable-speed controls on a "cheapo" fan.

As far as Hunter goes, I think they actually have their own specific brand of controls that they recommend.

What exactly did you upgrade from 2- to 3-speed? Wallbox control (what brand)? Fan model?
No controls on them, just pull switches. The 2 to 3 speed conversion was done with a 3 speed pull switch and some capacitors. It was a long time ago and don't remember the details. They are the old style with the big old flat motor running in oil bearings.

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Old 04-20-2010, 10:40 PM   #4
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humming ceiling fans


If I remember right those big " birds " { excuse my pun on this one } they are PSC { permant split capaitour } and they are only two speed format and try to run with modern varibale speed controller it is not worth a crap they will humm and they will be more pronouced { louder } when the motor fan switch on motour itself is on low speed mode.

So there is two ways you can deal is get proper three speed dehummer speed control or just use the standard toggle switch.

Merci,Marc
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