Hi EXPERTS!

This is the greatest forum on the net... but I think I'll have you stumped on this one. On my breaker panel I have a GFI circuit breaker... it has a red test button on it. At any rate, when I switch on my under counter low-voltage lighting that circuit pops. The really bizarre thing is that the low-voltage lights are not on that breaker and continue to work!!! Even worse.... it only happens about 75% percent of the time. It also appears that something that is on the popping circuit breaker has to be ON in order for it to trip. I talked to a friend about this and he said it was Impossible. But I soon proved to him that it indeed was possible. Any suggestions? Thanks in advance. I truly appreciate your words of wisdom.

paul

 

From what you described, I would guess that the lighting circuit is sharing it's neutral with the GFCI circuit, or at some point the two neutrals are connected together.

 

hello Paul,
i have to agree with lefty sounds like a shaired nutural problem. if the lights r on a red wire and gfi on black, or vice cersa trace them back in panel and ill bet u find they shair the nutural.