Tripping Garage GFCI Traced Back to a Moisture-Damaged Outdoor Outlet

A garage GFCI that keeps tripping is one of those problems homeowners tend to ignore - until they can't anymore. Reset it enough times and it stops resetting at all. That's usually when we get the call.

On this one, we came out to track down why the garage GFI kept cutting out. The answer was outside. The outdoor outlet mounted on the exterior wall near the water lines had moisture getting in - no proper weather protection, and it was causing the whole circuit to trip. That's the thing about GFCI circuits: one bad device downstream can take out everything connected to it. The garage outlet, the bathroom outlet, outlets you didn't even realize were on the same circuit.

We replaced the faulty outdoor outlet and installed a proper weatherproof cover to keep moisture out going forward. Then we verified everything with an outlet tester at each location - checking for correct wiring, proper GFCI function, and no faults. The bathroom that had mysteriously lost power? Also back online once the root cause was fixed.

This is exactly why electrical troubleshooting matters. Swapping a device without diagnosing the actual problem just kicks the issue down the road. We traced it, fixed it at the source, and made sure every outlet on that circuit was wired correctly and code-compliant before we left.

Moisture and outdoor outlets are a tough combination - especially with water lines running nearby. If something keeps tripping in your garage or bathroom and you can't figure out why, there's a good chance the problem isn't where you think it is.