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Old 11-15-2020, 09:33 PM   #1
New Member
Ramona , California
Join Date: Feb 2020
Posts: 1
new trailer and tail lights on 24/7...

We purchased a 2019 International 28 and took delivery March 2020. We have not taken it anywhere yet as we are swamped with work. We have had other brand trailers for 25 years.
Recently I noticed that the right rear tail light stays on 24/7...... Without the trailer being plugged into a tow vehicle.
So obviously there is a short somewhere. Has anyone else had this problem?

We have to wait over 2 months to get service from our 2 local dealers.

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Old 11-15-2020, 09:53 PM   #2
Rivet Master
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2013 25' FB Flying Cloud
Longmont , Colorado
Join Date: Jan 2012
Posts: 882
Welcome to AirForums! We are glad to have you with us.

I haven't had the problem, but something like it happened to someone else on the forum not too long ago. I think their problem was in the umbilical cable.

First, inspect the cable for cut/crushed spots. Also inspect the plug to see that it is intact and clean.

From there, look for the other end of the cable. It probably comes up through the floor under the couch/furniture in the front of your trailer, and goes to a plastic box. Inside the box, each of the wires goes to a terminal that connects to the trailer lights/brakes/whatever is on that line.

If you are lucky, the problem is in either the cable or the box at the end of the cable. The cable can be replaced without too much trouble, and the wiring in the box can be fixed. If the short is in the walls, that is tougher.

Good luck.
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Old 11-16-2020, 04:20 AM   #3
Rivet Master
2018 25' International
Slidell , Louisiana
Join Date: Sep 2017
Posts: 3,477
I would add you should clean the plug anyway. The modern LED lights don't need much current to get a few of them to light. Grime on the contacts can carry the +12 V to the next post over the right turn light.

Use a degreaser first. A solvent like electric contact cleaner, or break cleaner or a very strong grease detergent. Then clean the electrical contacts with vinegar. Then rinse well with lots of clean water.
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