I have a class A motorhome with a Southwire 41301 120v 30A transfer switch. The Motorhome has a generator and thus the need for the transfer switch . My problem is that when I plug the Motorhome into my Gro-Watt inverter the transfer switch displays a open ground and will not engage. I've tried a neutral ground bond and that did not fool it. I plugged my RV into an Ecoflo delta and the same thing happened. What are your suggestions for getting around this? When I'm boondocking I don't want to run the generator. Thanks K