Hi folks, bear with me for a minute while I explain the situation and hopefully someone will have some input to help: My Onan 5500 starts and runs. It will run 1 A/C but when I put on the 2nd A/C it bogs down and kicks it off line. When I am plugged into shore power there is no problem running both A/C's. I have a 30 amp coach with the Intellitec system that sheds the loads between A/C for start up. We are in Yuma until April and I called out a tech who looked at it and said the g