Thanks everyone for all you assistance. We do have an onboard Onan Generator. Sorry have not replied to all. After talking with our Dealer and since under warranty, we took Monty in. They are running diagnostic test. At this point 1 thing they have told us was a ground wire and this was causing the Surge Guard to do its job, As it was supposed to by not allowing power to AC, etc. Thanks again. We appreciate this Forum.
David & Debbie
2022 3121RL Legacy Edition, Cobalt, 2021 Chev 2500 Diesel