What trailer and what kinda brakes?
its a 12' car trailer with surge brakes, i believe my load is to heavy and when going down hill the trailer pushes up against the back of the truck and rides the brakes. after looking around this appears to be a common occurrence. i took the mechanism apart and everything seems to be working correctly (break away wasnt set or anything) when heading up t the rim it was fine, its just coming back down, and i use my gears not ride my brakes. so im in a pickle here, guess just stop every hour of towing down hill for a while to let them cool off.
Or get it down here where Dave's is now and maybe it will go through some transformations. 
I would be embarrassed to have you look at some of my wiring haha! im gonna try a few more things myself then if i cant get it to work we shall go from there.
