Bruce,

My refrigerator failure mode was that it ran, but did not get cool inside. We keep a thermometer inside both ref and freezer sections so we can keep track of how well it is working.

Anyway, the coils behind the freezer inside panel would freeze solid with ice, then it would stop keeping food cold. I removed the inside back panel and defrosted the coils, then it would work fine for a week or so. But that was obviously a pain to live with, but it kept us on the road. A hair blow dryer works great for defrosting by the way! Marathon wanted $$$ and they would not guarantee anything.

A local guy who knew what he was doing solved it in 5 minutes.