Some coaches have fans in the refrigerator circuit that are in the outside refridge compartments. They are normally thermostat controlled and come on when the sun is beating down on the refridge side of the MH. Some have also been added by dealers and may have been wired in for manual control. Our present coach is the first that we have owned with this fan so I was quite surprised when I heard it and had to investigate what it was and why it was there.
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