Thread Tools Search this Thread Display Modes
Old 07-04-2014, 09:15 AM   #1
Rivet Master
Al and Missy's Avatar

2002 30' Classic S/O
Melbourne Beach , Florida
Join Date: Nov 2013
Posts: 1,483
Loose Connection at Negative Busbar

I was disconnecting the trailer when the tongue jack quit working. It had been making noise so I was afraid that it had finally died. A quick check showed the light didn't work either. Whew! A wiring problem is better than replacing the jack.

No power to the jack. No power at the fuse. No power at the positive battery terminal (measured to the ground lug inside the jack). What the ???

Measured to the negative post of the battery and everything is OK. A look at the wiring diagram shows the negative cable runs to a Busbar near the converter. Sure enough, the cable had pulled out. It was crushed like it should be from the clamp screw, but when I went to put it back in, the screw felt tight. I guess a strand of the wire got in the threads and made it feel tighter than it actually was.

With this failure, nothing battery operated was working, including the trailer breakaway switch operating the brakes. Vehicle brakes would have worked as they run from TV battery and ground.

Check your Busbar connections periodically. This would have been a real pain while camping. Luckily I was in my driveway.



"You cannot reason someone out of a position they have not been reasoned into"

Al, K5TAN and Missy, N4RGO
2002 Classic 30 Slideout
2001 Safari 25 RB Twin (Gone, but not forgotten)
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
WBCCI 1322, TAC FL-39, AIR 82265

Al and Missy is offline   Reply With Quote
Old 07-04-2014, 03:31 PM   #2
Rivet Master
2005 19' Safari
Phoenix , Arizona
Join Date: Aug 2004
Posts: 2,359
We had the same problem right after taking delivery of our 19-foot Bambi in 2005. Guess that guy was still working there in the factory.
Phoenix is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuse on battery negative crispyboy Batteries, Univolts, Converters & Inverters 23 01-27-2008 02:12 PM
12v Negative Problem jrk247 Electrical - Systems, Generators, Batteries & Solar 24 10-01-2006 08:48 AM

Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:19 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.