Sounds like a connection has broken. Can you carefully pull the plug cover off and see if there is a loose wire? Unplug the trailer first. Typically they run the power from one plug to the next then on to the next in line.
__________________ There is madness to my methods
2015 Coleman CM16FBS(traded) 2016 Concord 300DS
2015 Ford Fusion Hybrid following along
There is no room for a box. The splice is inside the converter right next to the breakers. There was probably about 3 or 4 inches missing. If I can pull the wire out, I will put a brand new one with no splice.
I have fixed. It will be safe. But I will make it safer once I get home.