Thanks for the replies. The temps have been in the high 90's here so I know that will have some affect on the cooling but it has 2 - 120mm computer fans that have run constantly since we left home so I would think air flow should be OK. I tried using only gas with it sitting over night and the temp was again up to the 50's in the frig part of the unit.
There was a mobile RV repair guy in the camp ground this morning and I had him take a look and he said it was air flow and to remove the baffles I had added when I put the fans in and to remove the bug screens since they were also restricting the flow of air. I removed both the baffles and the screens and now it won't even cool on electric. And now that I have put the baffles back it still does not appear to be cooling even on electric but then I did just put them back so I need to give it more time.
And now to add insult to injury every time we turn on the exhaust fan in the bath the sewer smell runs you out of the trailer. At least there is a little help by opening a window before turning it on.
I am beginning to get really fed up with this camping thing. I got rid of the last unit because of never ending frig, water heater and AC problems and bought a new unit expecting it to give service for a few years at least before something failed and this is what I get.