Thank you for the responses. I have a 7500 diesel onan. I have had it in the shop a couple of times but they can't seem to trace the problem. I just had the fuel filter and fuel pump replaced a month ago. Both AC's have been replaced as well. This issue is intermittent. There are times I run it and it will run 2hrs (while stationary). Then the next day when we headed out on our trip it would not run both airs.
I have a 2000 Monaco Diplomat. The generator cuts off when I run both AC units. There are times it will run a little while but usually after 5 minutes it will cut off. I can run one unit no problem, it is only when I turn the second one on. Have you heard of this issue before? I have had it checked out but they still can't locate the problem. Thanks, Steve