Originally Posted by MilesAndSmiles
Ok. I did what I proposed and swapped the house and chassis wires on the battery control center so that each was connected in the proper place. All seems to be working properly now. Our first full night boondocking will be the test!
As to how it happed - As far as I can tell it must have been the mobile tech. He took out the entire control center for access when replacing the solenoid. He must have just lost focus and connected those two wires to the wrong posts when putting it all back together. Of course everything seemed to work at the time. It took an overnight boondocking to reveal the problem.
Future advice. If and when you get into this kind of situation again(and you will), take as many pictures as you need to ensure you, or someone else, can assemble it properly. You were blessed this time, but the next time you or your tech could cause significant damage to systems.