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I want to replace a faulty dimmer switch with a new one, but the new switch has 3 wires and the old switch was connected by a yellow wire and a black wire. How do I connect the red, black and green wires from the new switch to them?

  • Thank you so much! It worked. I didn't have a ground but wrapped the extra wire like you said. And thank you for your quick response. – Lou Nov 12 '15 at 18:06
  • I am glad it worked any idea why I got a - vote ??? – Ed Beal Nov 12 '15 at 18:33
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connect the black to black, connect yellow to red, green goes to the bare copper that should be in the box if you dont have a ground (bare copper)in the back of your box put a wirenut on the green so it cant find your hot by accident

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  • Why was this given a downvote? It sounds right... – bitsmack Nov 12 '15 at 17:14

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