Good Sam Club Open Roads Forum: Tech Issues: Installing a dimmer switch
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Installing a dimmer switch

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev  |  Next
wnjj

Cornelius, Oregon

Senior Member

Joined: 01/11/2007

View Profile


Offline
Posted: 03/21/21 07:46pm Link  |  Quote  |  Print  |  Notify Moderator

Unplug the white wire(s) from the existing switch. If the ceiling lights still work but the blue light in the switch does not, that is the ground wire.

If that’s the ground wire, connect it to the black wire on the new switch. After that, determine which of the red wires is 12V by checking with a voltmeter. That wire goes to red on the new switch and the other goes to white. If you don’t have a meter or test light, just hook one red wire to red and the other to white on the new switch. If it doesn’t work, swap them.

Bobbo

Wherever I park

Senior Member

Joined: 09/16/2007

View Profile



Good Sam RV Club Member

Offline
Posted: 03/21/21 08:10pm Link  |  Quote  |  Print  |  Notify Moderator

My sister called me in a panic because she replaced a lightbulb in a ceiling fixture (stick and brick, not RV) with an LED bulb and there was a HORRIBLE sizzling noise, then the light went out. I went over and noted that the light had a dimmer switch and the LED bulb was not dimmable. Replaced the dimmer switch with ON/OFF switch, threw away ruined LED bulb, and all was well.


Bobbo and Lin
2017 F-150 XLT 4x4 SuperCab w/Max Tow Package 3.5l EcoBoost V6
2017 Airstream Flying Cloud 23FB


ScottG

Bothell Wa.

Senior Member

Joined: 02/25/2005

View Profile



Posted: 03/21/21 09:31pm Link  |  Quote  |  Print  |  Notify Moderator

Bobbo wrote:

My sister called me in a panic because she replaced a lightbulb in a ceiling fixture (stick and brick, not RV) with an LED bulb and there was a HORRIBLE sizzling noise, then the light went out. I went over and noted that the light had a dimmer switch and the LED bulb was not dimmable. Replaced the dimmer switch with ON/OFF switch, threw away ruined LED bulb, and all was well.


If a dimmer for an incandescent bulb is used, it will indeed fry the LED. Using an LED dimmer like the OP has purchased will work fine. All 12V LED's are capable of being controlled by that style of dimmer as long as the load is within the dimmers range - 10A in the case of the OP's dimmer.

C Schomer

Pueblo West, Co.

Senior Member

Joined: 12/26/2000

View Profile


Offline
Posted: 03/22/21 12:35am Link  |  Quote  |  Print  |  Notify Moderator

Lightning 55 please post ordering info for that switch...that's exactly what I need. I ordered a dimmer for my ceiling LEDs and it does the dimming through the gnd. wire instead of the 12+. The wiring and color codes are right on the back of your switch. I hope it's rated for LEDs.
My light switch panel has no gnd... Just 12 POS coming in and all the switch legs going out but it will be easy to pull a neg.
I found an awesome 5k temp/5300 lumens dimmable led sticky strip to convert my fluorescant ceiling lights. Super white, no hint of blue or yellow. Ill try to find the info from Amazon for anyone who's interested.
Here it is to copy/paste
https://www.amazon.com/gp/product/B00PUY74TG/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&th=1

* This post was edited 03/22/21 12:55am by C Schomer *

ScottG

Bothell Wa.

Senior Member

Joined: 02/25/2005

View Profile



Posted: 03/22/21 09:04am Link  |  Quote  |  Print  |  Notify Moderator

12V LED dimmers will have both + & - inputs and outputs. If it only hooks up to one or the other, it's not LED specific and wont work right.
The switch can be wired as usual, through only one side.

C Schomer

Pueblo West, Co.

Senior Member

Joined: 12/26/2000

View Profile


Offline
Posted: 03/22/21 07:20pm Link  |  Quote  |  Print  |  Notify Moderator

Ooopps, double post

* This post was edited 03/22/21 07:34pm by C Schomer *

C Schomer

Pueblo West, Co.

Senior Member

Joined: 12/26/2000

View Profile


Offline
Posted: 03/22/21 07:31pm Link  |  Quote  |  Print  |  Notify Moderator

The neg. to the lights can't be tapped into or seperate the neg. that goes only to the lights I want to dim... It's all in the ceiling and walls. I can only access the POS. At the switch. Is dimming possible? I could use lightning55s switch if it's for LEDs... I would only needed a neg. to the switch, according to the diagram. Thanks!

wopachop

Who run bartertown

Senior Member

Joined: 11/17/2006

View Profile


Offline
Posted: 03/22/21 07:49pm Link  |  Quote  |  Print  |  Notify Moderator

The 2 white wires to the switch are not negative?
I dont see why its not able to work.
1 of the red wires to the switch will be your 12v postive.
The other red wire will be your PWM V+ going out to the light.

Lightning55

Pleasanton, CA

Full Member

Joined: 04/30/2019

View Profile


Offline
Posted: 03/25/21 03:10pm Link  |  Quote  |  Print  |  Notify Moderator

No luck so far. We've tried every combination to wire up this dimmer and can't get it to work. Very frustrating. We think it's a ground circuit issue.
I hate to give up but don't know what else to do.

RickLight

Washington

Senior Member

Joined: 01/22/2017

View Profile



Good Sam RV Club Member

Offline
Posted: 03/25/21 04:18pm Link  |  Quote  |  Print  |  Notify Moderator

Have you tested the voltage of each wire against a known ground?
Is there already some additional switch for the light?


Rick,

2019 Grand Design Reflection 150 273MK
2015 Ford F350 CC SB Lariat Powerstroke
PullRite Superglide

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev  |  Next

Open Roads Forum  >  Tech Issues

 > Installing a dimmer switch
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.