How many of us are there? Owners of Dodge based RV's?

No, the water pump and panel that monitors the status of everything did work, we disconnected and reconnected everything to check wires, connections, etc, and now nothing is working. I don't see any switches anywhere, there is a fuse in the battery box that looks and tests well, and it is the only one we have not changed out. Otherwise a straight red wire from battery to converter.

I do have a multi meter, but am not sure how to test these connections, i am handier with a wrench than the probes :)