In an unlevel RV fridge, when the ammonia vapor in the condenser fins cools to a liquid, but the liquid ammonia isn’t able to fall (via gravity) all the way to evaporator coils, it may instead collect in the tubing between the two and instead form ammonia crystals.
These crystals (the solid form of ammonia) can clog the circulatory system of the refrigerator in the same way that cholesterol clogs the arteries of a person. Is there HEAT in the back of the fridge when you turn it on?
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