3 way refridge not cooling
I recently camped at Bristol Tenn for the Nascar races. I started the refridge on shore power on Monday at home. Wendesday morning we put frozen food in the fridge and put it on 12 volt and left for Bristol. The temp inside the fridge was about 40 when we got there and got set up. The next morning it was 31. The outside temp went to 90 and the temp inside the fridge went to 47. The next morning it was 70 outside and the refridge temp was 45. The fridge never recovered. It was always 45 or more. I ran it on propane set on 7. Do I have a problem or is it the way it is? I have a RM2193 Dometic. My camper is a 2015 Rockwood Freedom.