Saturday night I decided to wire the garage. I got most of it done
and all of it works fine except for one GFI. That GFI did work just
fine. I jusdt installed it a few weeks ago in our den, but I removed
it after the household PMS master determined that Ivory is not white
enough. So this GFI was working just fine. Now it dont work. The
instant I plug something into it, it trips. I tried two trouble
lights, my circular saw, drill, and grinder. All of them make it trip
the second I plug them in. All of these things work fine on other
outlets and other GFIs.

I must admit that by the time I got to this outlet I had finished off
two 12 packs of beer, so I thought that maybe I pinched a wire when I
put the outlet in the box. I pulled it out of the box yesterday and
there are no pinched wires. What the heck could be causing this?
By the way, when it trips I can see a visible flash inside of it.

I have never had this happen before. It makes no sense.

Ken