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RVers are quite fortunate to have the lifestyle we have... and the equipment which makes it all possible. One such piece of technology is the RV absorption refrigerator. While it is not my intention to give a detailed breakdown of these units here, there are some things the RVer can do to help keep the refrigerator running at peak efficiency for many years.
RV refrigerators are completely different from the machines we have at "home." Our RV refrigerators have no compressor, but rather have a series of coils in the rear which when heated properly, circulate gasses (most noticeable of which is ammonia when the cooling unit fails) which absorb heat from the interior of the refrigerator and expel it to the outside. The heating is accomplished by either an electric element(s) (110v and/or 12v) or propane flame.
It's because of this circulation, that it is so important to keep the refrigerator "comfortably level" during operation. Besides keeping the unit level, it is important to occasionally inspect and clean the rear of the unit for optimum operation.
SAFETY NOTE: It is important for safety reasons to follow the manufacturer's safety and maintenance instructions to the letter. Adjustments or repairs should be made by a QUALIFIED TECHNICIAN ONLY. Failure to do so can increase the risk of fire, personal injury, property loss, and death.
Keep that refrigerator clean! Inside and out. The inside of the refrigerator, if closed up dirty, can grow all kinds of nasty things, so clean it well, using manufacturer recommended cleaners, and prop open for storage.
The rear of the unit should be inspected, and occasionally vacuumed out to rid the space of debris and webs, etc. Often, the metal parts, including the cooling unit and the burn chamber, will attract moisture and therefore rust. Cooling unit failure is often the result of rust. Severe rust should be examined by a qualified technician for repair. If, on a newer unit, you start to see rust forming, it might be worthwhile getting the paint on the cooling unit touched up, using a paint recommended by the refrigerator manufacturer.
Considering how much an RV refrigerator costs, a little extra time and money now to take care of the one you have, will pay of in the long run! Until next time, we’ll see you on the highway!
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