Stanm,
Rick beat me to it. I was going to say to replace the thermistor (temp sensor) that is attached to the fins at the back inside the refer box first. They can be tested for proper response and I can look up the spec for you if you like. If that doesn't work, the culprit is usually a bad I/C in the control board, and that goes next!
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lewster
Solar Tech Energy Systems, Inc.
Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries
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