Need Help.... Trailer fuse blowing when towing at night

[tower]

You might want to check the actual plug as well (not just the adapter) for an intermittant short.

[MVR 155]

Originally Posted by tower

You might want to check the actual plug as well (not just the adapter) for an intermittant short.

Dont think its the plug on the trailer otherwise it would have shorted/blown the fuse in the other truck and I dont think its the plug on the truck otherwise the other trailers wouldnt have worked.

[Dug]

mvr, I would be sure its in your trailer lights . Backing the trailer into the water is a great way to make corrosion . Make sure that even your small side lights dont have water in them making a short. Clean the white corrosion off of the bulb sockets even if it doesnt look like that is making a ground. Up the fuse 5 amps in your H2 . Replace the rear tailight bulbs even if they are working. Good luck , doug

[Dug]

Have you installed a electric brake controller by chance?

[HUMTECH]

FIGURE Trailer Lighting Provisions(c)



Looking at the schematic I would say it has to be in the trailer, check that circuit for the park lamps and make sure your park lamps on the trailer are not drawing more than 10a if they are 8a or higher I would try A 15a fuse. If ya can try installing A circuit breaker where the fuse goes with an amp gauge connected to it(not sure where to buy A tool like this I built my own) and then you can monitor the circuit to see if it spikes.

[mikejr]

have you checked to see what amp fuse is in the other vehicle that doesnt blow when the trailer is attached. Perhaps the draw is more than you think and its just popping the fuse. I agree, try fusing up a little after checking all the lamps for corrosion.

[MVR 155]

Ok to address the suggestions, first off the LED lights on my trailer are brand new, I pulled them apart when I messed with it on tuesday and there is no water in them at all (totally sealed). I actually also tried over fusing by 5 amps as well and it blew, the other truck has the same size fuse on its own circuit just like the Hummer does.

I am thinking that the new LED's may have some kind of intermitent short or something, I think Im gonna pick up a new set today and swap them in, if it doesnt solve the problem I think Im just gonna pull new wire through the whole trailer and be done with it.

I really appreciate the suggestions thus far and Im open to any other suggestions as well

Thanks everybody