MaMalody: Yeap - that is what was happening. When the main AC turns on, it kills the generators (they are still running but no output, have to shut them off which effectively resets them)-- this is when I had them running in econo mode. If I have them both running full speed then they will handle the 15K AC and the Microwave no problem. I thought the AC's were the same between my old Mountaineer and my new unit but called the dealer and confirmed that my new unit is 15K while my trade was a 13.5. Live and learn
New unit not a Montana but have had such a good rapport here I don't want to leave!!!! Dealer I bought from sells both Montana and my unit; my unit a close cousin (I hope!!) (At least they said it was and support has been equally super so far!!).