Much depends upon what type of motor is in the ceiling fan. There are more
than one type of AC motors without brushes.

Klem/Lenny hasn't revealed what type of AC motor he's referring to.. nor
anything specific regarding the "generic" controller that wasn't supplied
with the fan.

--
Cheers,
WB
..............


"Paul G." wrote in message
...

I had a fan that was noisy like that, and stuck a 5-10 uF capacitor
in series with the motor. You can't use the dimmer - so you need a
switch to hook the fan either to the controller or the series cap. It
runs quite slowly, and no buzzing. Make sure the capacitor is designed
for line use ..... 250vac or 600vdc should be OK. If it fails, the fan
will just run at full speed. The only worry would be if it were to get
hot say from internal arcing or something wierd like that. To be one
the safe side use a U/L approved or type Z capacitor.
You can cause the cap and inductance of the fan to resonate....
That will cause voltages greater than the line voltage to appear
across the fan motor, and it go fast, and overheat. Try a few
capacitors, starting at 1uf, and increase until you get the speed you
want.
Some fans have a switch that gives 3-4 speeds, with a series cap,
you can effectively get a much slower range of speeds, and thereby not
need to use a dimmer type speed controller.

Paul G.

On Mon, 18 Jul 2011 06:31:03 -0700 (PDT), klem kedidelhopper
wrote:

On Jul 18, 9:22 am, klem kedidelhopper
wrote:

Thanks Michael for sending me those dimmer links. They are pricey
though... Lenny