When I had my ACE with outside kitchen the little frig. was on pretty much all summer. It was over two years old when traded units, that's not saying things do not go wrong. Have you checked the GFI outlet related to the frig.
I was looking at any of the small refrigerator, if a replacement was needed. If I remember it was more about size than anything else. I know Sam's club had one that I liked. Other than that can not help.
Itasca Meridian SE 36g
Road Master Tow Dolly