Fisherman wrote:
Maybe I didn't read the OP's info right, but am I to understand the electrician jumped the red and black on the 10/4 cable to get 120V AC to both legs. How does that work with the floating neutral and that the hot and white on the genny both give 60 VAC, not 120 on one side?
The floating neutral doesn’t matter. The generator outputs 120V between hot and neutral and the RV expects 120V between either of its hots and its neutral. Now if the RV has an EMS on board, you may need a bonding plug to tie neutral to ground.