Somebody's done something to the wiring. Each GFCI should be fed by a circuit breaker. It does the leakage sensing, and when it trips, that GFCI, and each of it's downstream, or slave, outlets (usually 4 of them) get shut off also. Begin by replacing the tripped GFCI. It may have fried internally by the overload. It is not designed to be overload protection, but leakage protection. The circuit breaker feeding it should trip in an overload. However, If any of your GFCIs are "alive" with all circuit breakers off, then something is very wrong. The GFCIs would have to be wired "hot" to the input, without the benefit of a circuit breaker on the input side. If that's true, it's time to call a pro.
|