Good Sam Club Open Roads Forum: Travel Trailers: How 12v lights work?
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 Travel Trailers

Open Roads Forum  >  Travel Trailers  >  General Q&A

 > How 12v lights work?

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev  |  Next
time2roll

Southern California

Senior Member

Joined: 03/21/2005

View Profile



Good Sam RV Club Member


Posted: 05/01/21 05:01pm Link  |  Quote  |  Print  |  Notify Moderator

If the fuse opens when you turn on the switch.... the trouble is after the switch. Probably a bare, cut or frayed wire is shorting to ground between the switch and the lamps.

Did this ever work? Or is this part of a new installation?


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

JRscooby

Indepmo

Senior Member

Joined: 06/10/2019

View Profile


Offline
Posted: 05/01/21 06:25pm Link  |  Quote  |  Print  |  Notify Moderator

Part of my test kit is a 2-prong turn-signal flasher with jumper wires attached. Hook it in place of fuse, will work as auto reset circuit breaker. Then you can follow the wires with non-contact amp meter. When you pass the short the needle will stop jumping.

alexey75

Nova Scotia

New Member

Joined: 09/01/2020

View Profile


Offline
Posted: 05/01/21 06:52pm Link  |  Quote  |  Print  |  Notify Moderator

2oldman wrote:

alexey75 wrote:

From the awning into the wall.
and this 'wall' is a 12v socket?


No, it goes through the wall and connects to the panel.

RickLight

Washington

Senior Member

Joined: 01/22/2017

View Profile



Good Sam RV Club Member

Offline
Posted: 05/01/21 07:05pm Link  |  Quote  |  Print  |  Notify Moderator

Water in the awning lights is real possibility. So is a short in the LED strip itself.

If the LED strip has a plug on the end it would be a convenient place to test. If its soldered on then thing are harder. How are your electronics skills?


Rick,

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

alexey75

Nova Scotia

New Member

Joined: 09/01/2020

View Profile


Offline
Posted: 05/01/21 07:15pm Link  |  Quote  |  Print  |  Notify Moderator

MitchF150 wrote:

Sounds like you have a short in the awning wiring? I assume it does this whether you are on just battery or 120v?

And it's just the awning light that blows the fuse either way?

Turn on your inside lights on and no problem?

Turn on your awning light and it blows the fuse?

Or a combo of both?

Not sure how you test that, but you gotta somehow take the internal wiring out of the equation with some test wires to see if it's the fixture or the wiring?

Good luck! Mitch


Yes, it doesn’t matter if I am on battery or 120v. I thought the problem with led connector, so I disconnected the led, turned on the switch and it blow the fuse...

Yes, it's just the awning light that blows the fuse.

No issues with internal lights.

Unfortunately I don’t have such long wires... I thought about it, connect one side to led and another side to the panel.

RickLight

Washington

Senior Member

Joined: 01/22/2017

View Profile



Good Sam RV Club Member

Offline
Posted: 05/01/21 08:13pm Link  |  Quote  |  Print  |  Notify Moderator

Where the wire come out of the wall is the most likely place for the wire to have damaged insulation.

poppa

Dallas, TX

New Member

Joined: 01/16/2020

View Profile


Offline
Posted: 05/02/21 02:36pm Link  |  Quote  |  Print  |  Notify Moderator

your led's awning lights are bad

mr_andyj

Georgia

Senior Member

Joined: 11/13/2004

View Profile



Posted: 05/02/21 08:38pm Link  |  Quote  |  Print  |  Notify Moderator

dip some water out of a bucket and the water comes from the bucket.
Run a hose into the bucket and dip some water out of the bucket and now where does the water come from, the bucket or the hose? Hard to answer, same with the battery/charger combo. It comes from where it is connected to. It is all connected together.

In your case, no the AC is never part of the DC circuit other than the charger runs off AC power.

Sounds like you blow a fuse on just battery as well as with the charger/converter on.
I think the question got unnecessarily confusing.
LEDs must be bad (not sure how), or a short in the wiring. More likely the short is at a connection more than where a wire might have gotten damaged. Check connections first.
Check that the LED lights work. Connect them directly to a 12 volt power source and see if they work. Connect a fuse inline and see if it still works.
If all is good then you probably do have a short.
Finding electrical issues like shorts is not fun and not easy. There is no good answer at this point.

bucky

Raleigh metro

Senior Member

Joined: 05/07/2003

View Profile



Good Sam RV Club Member

Offline
Posted: 05/03/21 04:39am Link  |  Quote  |  Print  |  Notify Moderator

The OP stated that he had unplugged the awning lights and the fuse still blew.

"I inspected and disconnected the awning lights, checked the cable that goes inside, checked the switch, all good, but still it blows the fuse."


2005 Cummins 3500 2WD LB quad cab dually pulling a 2014 Blue Ridge 3025RL


Old-Biscuit

Verde Valley

Senior Member

Joined: 06/20/2009

View Profile



Posted: 05/03/21 11:58am Link  |  Quote  |  Print  |  Notify Moderator

bucky wrote:

The OP stated that he had unplugged the awning lights and the fuse still blew.

"I inspected and disconnected the awning lights, checked the cable that goes inside, checked the switch, all good, but still it blows the fuse."


YEP^^^^

So issue/short is between switch for awning lights and the wiring up to the connector for the awning lights

Run new wire from switch to connector


Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31

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

Open Roads Forum  >  Travel Trailers  >  General Q&A

 > How 12v lights work?
Search:   Advanced Search

Search only in Travel Trailers


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.