Re: Slightly OT question

[J Miller <reply@here>]

BruceR wrote:
> I installed a couple of simple Leviton motion detector switches each to
> control incandescent bulbs in closets off a bathroom.  They work just
> swimmingly except for one problem:  if the exhaust fan over the toilet
> is turned on - even briefly - one or both (usually both) of the closet
> fixtures will go into a "strobe" mode flashing on and off very quickly.
> To resolve the issue the manual switch must be turned off then back to
> auto for normal operation.  I am assuming the fan is on the same circuit
> but I'm not there now to check that.  Any ideas as to the cause and,
> more importantly, a fix?
>
>

I'd guess the switch is freaking out for one of two reasons:
1)There's noise on the power line when the fan goes on and it sends the
switch into la-la land
2) the "Motion" of the fan blade is freaking out the motion sensor (you
didn't mention if the sensors could "see" the fan)

I'd contact Leviton on this one.  There could be a way to filter the
power at the fan or switches (many fans actually have a single outlet
inside that the small fan plugs into)