Rick, I am just addressing the transfer switch if its functional it will pass 110 through its relay to the load center and to the 110 outlets in the RV. Fridge,AC's
No batteries involved and no Gen involved.
If a converter is plugged into one of these 110 outlets and it is functional it will supply 12v to 12v fuse panel and control boards and lighting in the RV.
He says he thinks his TS is not working than if it is not, than none of what I said will work.
I would not go over board with to many 12v devises operating at once off converter.
TS PDF