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Lightning55's avatar
Lightning55
Explorer
Sep 01, 2019

Need help with dimmer switch

I've got a Jayco Eagle HT 30.5MBOK 5th wheel that has about 7-8 ceiling lights. They are way too bright so I want to install a dimmer switch. The new dimmer switch looks very similar except it has a slide dimmer next to the ON-Off rocker switch. When I pulled out the original switch I determined that the red wire with white stripe is hot. It is looped with a connector that is spliced into the wire that plugs into the back of the switch (see pics). It's 12v hot all the time. The black wire goes to the lights and is powered when the rocker switch is turned on. The new switch has 3 wires and the instructions to hook this up is not at all what they describe the wiring in the instructions that came with the new switch. I'm stumped....It seems that the light circuit is powered up and the rocker switch completes and interrupts the circuit but the dimmer is set up for a different wiring system. Any 12V gurus out there that can give me some help?

14 Replies

  • Your pics are not showing. That will probably simplify your question if you can get them to post. As stated above confirm it is a low voltage switch.

    It sounds like it can be set up as a three way switch.
  • Hi,

    Another question: The dimmer you purchased, is it for 120V lighting circuits or 12V lighting circuits?

    Can you post the make and model number of the dimmer switch?

    ~Rick
  • I'm assuming your light's are LED's. Some led lights are not dim-able.
  • I'm assuming your light's are LED's. Some led lights are not dim-able.

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