I have a box in my bathroom with 2 light switches. I'm trying to replace one light switch with a light switch + outlet. The existing switch has a black (hot) wire and a black output to the light fixture. I need to add a common/neutral/white wire to the new switch which will also have a GFCI 120v outlet. In the box there are 4 white wires connected together with one of those 4-plug wire connectors. I have always used twist-caps before to connect 3 wires at most. I am not familiar with these plug-in type connectors. It looks like those plugs are one-way / insert only / no removal. I believe I need to tap into that with a 5th white wire, but there are no open slots in the plug connector. What should I do?
In my opinion, these things Quik-Conns, are trouble. The safest, best way out of this is to call a pro. The reason why is that the NEC does not allow a GFCI receptacle on with a lighting circuit. If you have a stack switch/GFCI receptacle, you will notice that there wires coming from the switch part while the GFCI has screw terminals. This is so they shall be kept separate. Good luck in all you do and may God bless. EDIT: The only acceptable way to remove wires from them is to cut them loose. If you pull, tug or jerk them out, you will actually loosen the tabs that make contact, thus causing a loose connection which leads to them overheating. Heat cause fire. Get the point? If you have to do this, Cut them. Strip 1-1/4 of insulation off of the four existing wires and 1 pig-tail. Twist all 5 wires together, cutting off the excess. Install a Big Blue wire-nut. I advise against doing it this way, as it will not meet the National Electrical Code, and insurance companies look for ANYTHING to deny a claim.
