To prevent AC freeze (coils), always turn thermostat down, when too cold, never turn down fan speed. If fridge smells like amonia, turn off immediately, and replace. Loews has a fridge to replace single door Dometic. Chef's Magic, same exterior size, more cubic feet, about half the cost. Always run fan vent when taking shower, condensation is a major threat in RVs. Applies to some models, raise shower head holder 6 to 8 inches. Door holders are typically loose on RVs. Stuff with cloth to stop rattles.