My fridge in the trailer is just a small home unit. The little freezer upper part is like 20* but the lower is around 50*. Do you think it's not cooling off because it's in the hot trailer?
The first answer is yes, RV fridges don’t operate well in extreme heat. The long answer is there could be variables on thermistor, heating element, control panel etc that could go bad. I’m dealing with the same thing in Texas.