Well the trailer was new last year, went to pick it up and attach it to the truck, plug the 4 pin in and no passenger taillight is working on the trailer.....so I took the lens off and then noticed that the sealed housing had condensation on it, so i took that off and it looks as if water got in. There was water over the contacts, etc but nothing on the other side.....kind of ticked me off since it is pretty much a new trailer and it looks like it seals pretty well. Any suggestions? I have bought some new bulbs even though the other bulbs didn't look like the filaments were burnt out.