[The Newell]

you probably have an automatic refrigerator that will choose the energy source it uses. The controls for such refrigerators operate from 12V-dc power and that must be available for any other source to work. They are usually programed to choose 120V-ac power if it is available and to only operate from propane when 120V is not available. If this is what you have, nothing needs to be done, other than to be sure there is 120V power available.

RV refrigerators are of the absorption type and there is no compressor and they operate in exactly the same way whether using propane of 120V power as an energy source. When on 120V power, all that happens is that an electric heater is used to supply the heat in place of the flame and the controls operate exactly in the same way.