Modification of Old Electrical Work

How do you wire a GFCI outlet if your wiring only has 2 wires into the box?

Answer

Wiki User
05/31/2009

You will have to run new electrical wire or a single ground wire back to the panel (though the former is highly recommended). A GFCI outlet will cut off the circuit if it senses voltage leaking to ground. If there is no ground wire, it will not function.