The National Electrical Code (NEC) exists to keep people and property safe from electrical hazards and fires. Electricians like me and Chris Lozano of Frontdoor Home Services spend years learning the ...

My GFCI test button won’t push in when I try to reset it, but nothing has tripped in the breaker box, and the hairdryer works when I plug it into outlets down the hall. Why won’t my GFCI reset?

See? Good and evil. An RCD (or GFCI in the States) is a kind of circuit breaker that trips when the amount of current in the hot and neutral mains power lines aren’t equal and opposite ...