How To Wire A 3 Way Dimmer Switch. The first thing you will have to realize is that you can only replace ONE of the existing three-way switches with a three-way dimmer switch. With a few tools and your handy wiring diagram, you can add a custom lighting solution to any room in your house.
If you are replacing an existing dimmer, you would need to unscrew the wire nuts around the switch wires and house wires. There are rocker, toggle and push-pull styles, and they come in a large number of colors and designs. Follow Dominick as he shows you step by step how to get it right.
With a three-way dimmer, you can control a light with two switches.
They include short wire leads that you connect to the circuit wires with twist-on wire Although they look a little different, dimmer switches are installed much like standard light switches.
If you are replacing an existing dimmer, you would need to unscrew the wire nuts around the switch wires and house wires. A three-way switch is built and. You will see a black screw and two gold screws on the switch.