6. Identify cables/wires
Important:
DO NOT install the GFCI receptacle in an
electrical box containing (a) more than four (4)
wires (not including the grounding wires) or
(b) cables with more than two (2) wires (not
including the grounding wire). Contact a
qualied electrician if either (a) or (b) are true.
If you are replacing an old receptacle, pull it out
of the electrical box without disconnecting the
wires.
•
If you see one cable (2-3 wires), it is the
LINE cable. The receptacle is probably in
position C (see diagram to the right).
Remove the receptacle and go to step 7A.
• If you see two cables (4-6 wires), the
receptacle is probably in position A or B
(see diagram to the right). Follow steps a-e
of the procedure to the right.