Want to split one light switch


Old 01-25-01, 01:10 PM
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I have a light and a fan vent in the bathroom that both turn on with a single light switch. Can I separate the two using a double switch faceplate so that each light switch operates the light and fan individually? What are the connections? Thanks!
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Old 01-25-01, 02:41 PM
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You need to get out your voltage tester, and remove the switch plate to see how the switch is wired. Observe the safety stuff found on this site as 120 volts can kill you dead.

Hopefully you will find the following: three romex cables with a black, white and ground in each. With the switch off, one of the bronze posts should have 120 volts between it and ground. Follow this wire(it should be black) to it's cable at the back of the box. This cable is the power feed to the panel. That cable should have a white wire that goes to the other whites from the other two cables. All should be under a wirenut. The other two black wires should be wire nutted together to the second post of the switch. All grounds should be tied together and to the switch. You can turn off the power, buy a stacked switch, and seperate the combined black wires to the different posts of the switch. Install the power black wire (the one from the panel) to the 'common' post on the stacked switch. Install the ground wire. Install the switch and you are good to go.

If your situation is not like this, you will need to repost with your exact wire content in your switch box, and what each wire is connected to.
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