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07-06-2014, 05:58 PM
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#1
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Senior Member
Join Date: Aug 2012
Location: Alberta
Posts: 157
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Changing a ceiling light
Hello friends,
So one of my ceiling lights had its switch go all mushy and stop transferring power to the light bulbs. I picked up a whole new light assembly for ten bucks. Can I simply cut the white and black wire coming through the ceiling, and splice them into the new light's black and white wires? I'd of course turn off the main fuse before cutting any wire.
thanks!
Kevin
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2012 Springdale 179
2008 Dodge Ram 2500 6.7
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07-06-2014, 06:35 PM
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#2
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,984
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Sure, Disconnect the battery (easier than pulling a fuse and getting the wrong one) cut the wires and connect the new light fixture.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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07-06-2014, 06:41 PM
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#3
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Senior Member
Join Date: Aug 2012
Location: Alberta
Posts: 157
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Thanks John! Now, when I look in my fusebox, they are circuit breakers. If I just turn off the one that says "main," would that suffice?
Kevin
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2012 Springdale 179
2008 Dodge Ram 2500 6.7
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07-06-2014, 06:45 PM
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#4
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Site Team
Join Date: Mar 2011
Location: Gaylord
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NO !!! The one listed as "MAIN" is an AC breaker, You're dealing with DC fuses. Those are two separate and distinct electrical systems that are not "interconnected" !!!!! Nothing on the AC breaker side will disconnect your DC power. That's why I suggested you just pull the negative terminal on your battery, change the light and then reconnect the battery.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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07-06-2014, 06:47 PM
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#5
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Senior Member
Join Date: Aug 2012
Location: Alberta
Posts: 157
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John,
Then that's exactly what I'll do!
Kevin
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2012 Springdale 179
2008 Dodge Ram 2500 6.7
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07-06-2014, 07:12 PM
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#6
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Senior Member
Join Date: Apr 2013
Location: Green Valley, AZ
Posts: 782
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John's got it right!
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Earl
2007 33.5' Arctic Fox Fifth Wheel used for full-timing for several years--now sold
2011 Hideout 23RKSWE that we now use for poking around local parks
2007 Chevy 3/4 ton diesel with Prodigy Brake Control
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07-06-2014, 07:14 PM
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#7
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Senior Member
Join Date: Aug 2012
Location: Alberta
Posts: 157
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Would you recommend black tape or those plastic marettes for the connection?
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2012 Springdale 179
2008 Dodge Ram 2500 6.7
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07-06-2014, 07:14 PM
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#8
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Site Team
Join Date: Jun 2009
Location: Venice
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Be sure to unplug shore power so the converter is not supplying 12v. also.
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 Hank & Lynn
2007 Cougar 290RKS, E-Z Flex, 16" XPS RIBs ( SOLD  .. Gonna miss her ... looking for new 5r)
2004.5 Dodge 2500 QC, LB, 5.9HO, WestTach gauges, Ride-Rite
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07-06-2014, 07:18 PM
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#9
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Site Team
Join Date: Mar 2011
Location: Gaylord
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Quote:
Originally Posted by lightning79
Would you recommend black tape or those plastic marettes for the connection?
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Crimp butt connectors are what is installed on the existing light. If you have them, they are best, if you don't then the screw caps will work, just wrap them with black plastic tape when tightened so they won't vibrate loose during travel. Chances are pretty slim they would loosen, but "ya neva know"....
Hank's right, don't forget to unplug shore power to keep the converter from providing DC power while the battery negative lead is disconnected.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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07-06-2014, 07:22 PM
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#10
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Senior Member
Join Date: Aug 2012
Location: Alberta
Posts: 157
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Thanks guys. Just the negative lead only?
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2012 Springdale 179
2008 Dodge Ram 2500 6.7
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07-06-2014, 07:47 PM
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#11
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Site Team
Join Date: Mar 2011
Location: Gaylord
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Yes just the negative lead. If you take them both off, you have a chance of connecting them backwards and causing more problems. You interrupt the circuit with the negative lead, no power will flow and that's all you need.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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07-07-2014, 03:06 AM
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#12
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Senior Member
Join Date: Mar 2014
Location: Las Cruces
Posts: 4,665
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Yes, just the negative. You are dealing with a 12 volt light so it's just like working on the electrical system of your car. If you disconnect the negative side of the battery (and unplug the shore power) you will not have any power to the light.
Keep in mind that this is only for a 12 volt light. If you have a ceiling fan and ever decide to change it out, that is on the 120 Volt AC circuit and works off of shore power not the battery.
AS for the connection type, the wire nuts will work, but I would use automotive type crimp connectors. They will stay secire and you don't have to worry about them vibrating loose.
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Brent
2013 Alpine 3500RE
2019 Silverado 2500HD Duramax
U.S. Air Force Retired (25 yrs)
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07-07-2014, 02:15 PM
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#13
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Senior Member
Join Date: Aug 2012
Location: Alberta
Posts: 157
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Light and new LEDs are in and working perfectly, thanks so much!
Kevin
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2012 Springdale 179
2008 Dodge Ram 2500 6.7
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