I had the same problem the April in the Keys. It had rained for several days, very windy, and we tripped the breaker that controlled the tv, icemaker, slide outlets, etc. When we got home, I had an electrician come over and find the fault. The major cause was the breaker itself. It isn't actually a GFI, but is an "arc-fault" breaker which is very sensitive to moisture. The outlets for the icemaker and refriderator were not on waterproof boxes and were very succeptible to moisture. He replaced the breaker and installed exterior outlet boxes that protect the circuits better. Like Jim, when the system dried out, it started working again, but I still had the replacements made. Note: this is the first time in over 5 years that we ever had a problem with this.