Fantastic Vent wall switch

[Capt Mike]

Looking for this particular combo switch for a Fantastic vent on a 2008 38 PDQ. The rheostat for the fan speed is working only on full ahead. Tried to remove the knob without any luck. Any ideas would be much appreciated.

[Ed Adair]

The knob on mine has a set screw on the side of it.

[Capt Mike]

From what I can see on the set screw, it’s either an Allen screw or a torx? I can’t get anything in there to loosen it.

[Ed Adair]

If I remember correctly it’s an allen 

[Bob Danny]

Could it be the contact on the fan opening, mine where dirty and corroded, after cleaning it worked fine. 

[Capt Mike]

I’m going to get some new Allen wrenches and get the rheostat replaced.

 Thanks for all the help folks!!

[cbr046]

14 hours ago, Capt Mike said:

I’m going to get some new Allen wrenches and get the rheostat replaced.

You might try getting a metric set, too.  Some of the smaller sizes are in 0.5 mm increments . . . that's 20 thousandths!  Make sure you have a tight fit to keep from stripping out the head

Try spraying tuner cleaner inside the potentiometer / rheostat first. 

- bob

[Capt Mike]

Thank you Bob H. I’ll try that spray first.