I installed a GFI recepticale next to the kitchen sink. When I first installed it everything seemed fine. About a week later it would just trip out for no apparent reason. After a week of this I figured it was bad so I replaced it. This one started doing it after a couple hours. It's installed in a duel box with a switch that works the garbage disposal. I have one side of the line for the disposal running straight through to the disposal and the other side running through the switch. It gets it power from the line side of the receptical. It still works when the breaker is tripped out. I do have more than two lines attached to the load side of the receptical but they go to the other recepticals around the counter top. Nothing has to be turned on for this to happen.

is there a way to trace circuits to see which breaker controls what outlet without shutting it off? If so, what kind of test equipment do i need and is it hard to use. thanks, Joe