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Thread: Issue with wiring of Lutron Diva dimmer. Original switch has 5 wires.

  1. #1
    Junior Member
    Join Date
    Sep 2020
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    Issue with wiring of Lutron Diva dimmer. Original switch has 5 wires.

    I have installed several of the Lutron Diva dimmer switches in my house with no problem. Like the others, the switch I am replacing is a 3 way. However instead of three wires plus ground on the original switch, there are 4 wires plus ground. There are 2 black wires and 2 red wires. One black and one red are connected to brass screws at the top of the switch and the other black and other red are connected to dark colored screws at the bottom of the switch. I am assuming that two of the existing wires will be connected to a single wire on the Diva dimmer, but I am not sure how to determine which two?

  2. #2
    Senior Member
    Join Date
    Jan 2019
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    181
    That's a 4 way switch, you will have to replace one of the other switches or move to the Maestro line if you want to control from all locations.
    Evan Kirkhart- Home Electronics Solutions
    evan@homeelectronics.solutions

  3. #3
    Junior Member
    Join Date
    Sep 2020
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    I have the same question.. with lights controlled by 3 switches and replacing 1 switch with a DVCL-153P dimmer.Did you solve it by attaching the two red wires, or the two black wires coming out of the wall and which dimmer wire did you join it with?

  4. #4
    Authorized Lutron Contributor
    Join Date
    May 2013
    Posts
    269
    If 2 wires are on the same connection, then this isn't a 4 way, but just a 3 way with a shared power wire. The 2 wires that are tied together would go to the black wire on the Diva dimmer. One of those wires is the constant feed coming from the breaker and the other is a constant going out to another location, possibly an outlet or another switch in a different location.

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