noticed today when going to the lake i smelled a burny brake smell when i stopped at the store. noticed the side of trailer where the smell was coming from the wheel was very hot to the touch. the other side was warm but the smelly side was hot to the touch. need some advice on where to start. it only becomes warm when using breaks i rode 2-3 mile down highway when i left and did not use brakes and let truck coast to a stop. had no smelling and wheel was cool to the touch. the trailer is a 2007 200 proxl stratos trailer. any help would be much appreciated, thank you.