The issue has been with the Nav n go system. Newmar customer support has been excellent, they have flown a factory tech out to us ( we don't have a dealer in our state) and we have had the unit back at the factory to address this and other issues. So I think they are also at a loss on this one and that's why I deceided to post here. The first failure was a frozen touch screen and the three subsequent failures have been the unit just not turning on as we got ready to leave an RV park, we have a dealer installed power protector/surge protector so I'm hesitant to think that it's dirty park power.
We'll continue to work with Newmar to get this solved, Thankfully my wife can use the Ipad, PC, and trucker atlas to help me navigate and she is down to only getting me lost 2 or 3 times a day