You might need to add a fan to the rear coils of the the refrigerator. The installation of the refrigerator on some RV's do not provide for proper airflow across the rear coils for the most efficient operation of the refrigerator. I had to install a fan on all three of my RV's.
You can
- buy
a new roof vent for the refrigerator that has a solar powered fan (however it does not work in the shade or at night - on the other hand there is no electrical wiring involved in the install)
-
Buy a kit that contains all the parts for a thermostatic controlled 12v fan - build your own. You will need an old fan out of a computer, a thermostat from Amazon (the one I selected was $14), a fuse holder and some wire.