We are staying in a campground that has no hookups, therefore we are having to run on our batteries. We have an 09 40' Phaeton with a commercial frig with 6 house batteries. No problem with charging...
Ground fault? The Honda does not tie neutral and ground. You must have a protection system that verifies ground and the Honda does not. Need a grounding plug or bypass the protection.
If it was a power issue the Honda would overload and stop producing power.