Troubleshooting GFIs

[alparker]

A friend of mine came to me with a problem. His house has a GFI installed and when it rains the GFI trips. He has checked all the outlets for proper wireing and did not find a problem. How can he isolate where the GFI is being triggered without disconnecting each outlet and waiting for it to rain?
Location of the home is in central Florida.

 

[charlie b]

I am closing this thread, in accordance with the Forum’s rules. This Forum is intended to assist professional electricians, inspectors, engineers, and other members of the electrical industry in the performance of their job-related tasks. Although your member profile shows that you have some involvement in this industry, your question makes it clear that you are assisting in the performance of electrical work at a friend’s home, and that you are not an electrician. We are not permitted to provide “how-to” assistance to a “do-it-yourself” person.

Let me offer thanks for your contribution to ptonsparky and Al, but I will have to delete your posts.