So, I contacted Generac and they don;t have any dealers or shops here in Oregon so I took it to a diesel engine repair guy that does a lot of work on Onans. After extensive testing of sensors and circuitry, he decided that the electronic board is bad and didn't want to get into trying to get parts from the mfg., so it's back home waiting for me to call Generac to see how much a board is, how much it costs and figure out if I try to repair it or have to replace it - Ugh!
I have other priorities right now so likely won;t get to this for quite some time. Meantime, always go where there's power