OUR SERVICE The Ultimate Guide to Replacing Your RV Air Conditioner with Used RV Refrigerator Gas Welcome back to Mo-Val Mobile RV Repair. RV refrigerators are fundamental for keeping your food new and refreshments cold during your outside adventures in your camper, trailer, or RV. However, over a long time, the cooling unit of your RV refrigerator might wear out, prompting wasteful cooling or complete failure. Air conditioning is a pivotal part,