I have a 2021 Thor Miramar 37.1 and the Contoure residential refrigerator is 110 volts. It operates off of generator/shore power or the inverter. There are controls for it inside the refrigerator that control the temps with a push button controller. Mine has been working correctly and cools down rapidly. Sounds like an issue between the freezer and refrigerator. The freezer supplies the cold air to the refrigerator.
Paul
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