Rovin' Bones wrote:
DrewE, thanks again for the suggestion and confirmation of my gut instinct. Plugging in the shore cable to the 30a outlet in the boot was the correct solution. But I do still wonder, if I am running the GenSet WITHOUT that plugged in, is it charging my house battery or not? Hmmmm.
Almost certainly it is not. The house battery is charged by the converter, and that's connected to the main 120V electrical system. The only possible way it would be charged otherwise is if there were some highly unusual modification or design for your particular RV.
Motorhomes are designed to charge the house battery from the chassis electrical system when the main engine is running (through a battery isolator, of which there are a few different designs). Whether or not that's working properly on yours is, of course, a different question altogether.