I'm the original poster.
So from these responses maybe it is only the battery. At first I thought not because the dash lights up without struggle. But maybe turning the engine takes much more power.
Another hint that made me think it could be the battery is that this started at night. The next day in daylight with the solar panel pumping in some power the engine turned slightly versus the night before I was getting nothing.
My understanding is that the camper batteries are connected to the engine batteries. There is a shutoff which prevents the camper from running down the engine batteries, but I thought not in the other direction. So if the engine battery is dead I would think the camper batteries would turn the engine. The camper batteries are showing fully charged. But maybe deep cycle camper batteries don't have enough cranking power to turn an engine???
A service of my Good Sam towing is battery replacement. So if it's the battery they should be able to get me going. But I still have to be prepared for if I need to get towed.
I left voice mails at a couple local mechanics on Sunday. One called back and left a voicemail this morning. I'm about to call them then Good Sam. Wish me luck.
