RBM wrote:
I agree with Doug, whenever I've had intermittent tripping of GFCI breakers,
its always turned out to be an outside outlet with water getting in. Also
I'd question a central vac that's not on a dedicated circuit. The ones I've
wired require a 20 amp circuit by themselves
"Doug Miller" wrote in message

That's what I thought too, and the code here probably requires it. I
didn't install the vac though, and it might have been ok all those years
ago. I'm not positive about the exterior outlets and I didn't remove
them to check because they are sealed with caulk. The seal looks good
but I guess this summer I know what I'll have to do.

Rob