There are two switches – the left is for the fan, the right is for the light. They operate independently. I want to replace the light switch with one that has a motion sensor.There are four sets of bundled wires coming out of the back of the box. Each bundle has a white, a black, and a copper wire.Two black wires come out of each switch. The top wires go into two of the bundles in the back of the box, the bottom wires are connected with each other and with two more black wires coming out of the other two bundles coming out of the back of the box.All the white wires are twisted together with a red cap. All of the copper wires are twisted together with another red cap.My motion sensor has a red, black, green and yellow wire. The directions say the yellow wire is not used, because this is not a 3-way light. Is there a straightforward way to do this?
Sure is!. You wire it exactly the way the instructions say to. Which is to use the 2 wires on the existing switch. The bare wire on the switch (if present) is the ground and goes to the green. Just like the instructions say. You are apparently letting all those other wires scare you. The motion sensor is nothing more than an automatic switch. It does the same thing the existing switch does, using the exact same wires. Do Not touch any of the existing splices. Look again at the instructions. Take a deep breath and have at. I've been in control cabinets with Hundreds of wires in them. I ignored all but the ones I need to work on. Other wise I would still be there trying to figure it out! (chuckle)
