RV refrigerators are different than the ones you might find in your home because they have to be designed to operate on an alternating current, rather than direct current. When selecting a new RV fridge, be sure to take measurements of the space available for it. Purchasing one that is too large can mean having to make costly framing renovations in order for it to fit.
There are several types of rv refrigerators available for your RV. Cool boxes that hold ice blocks are inexpensive and easy to find, but they’re not as effective in hot weather, and you’ll have to replenish the ice frequently. Portable 12v electric refrigerators, on the other hand, are more expensive but can be used for both fridge and freezer purposes. They have a more spacious interior and features such as adjustable shelves, an LED interior light, a see-through crisper and ice cube tray, and an Energy Star rating.
The way these 12-volt RV refrigerators work is that pressurized refrigerant flows into the fridge compartment and then through a set of fins where it condenses into a liquid. This liquid then passes through a cooling coil and cools the freezer and fridge compartments. The refrigerant then returns to the absorber, where it mixes with water and vaporizes back into a gaseous state. It then flows through a vent and into the compressor to start the process over again.
Routine maintenance of an RV refrigerator can help it keep its internal temperature stable. Be sure to check and clean the freezer vent regularly, to remove any buildup of ice or frost that could block the flow of air. Also, be sure to allow plenty of space between items in the fridge, so that air can move freely throughout the interior.