Does your Norcold refrigerator have insufficient cooling? Have the fans stopped working? Chances are you need to replace your fan thermostat. The fan thermostat creates air flow behind the cooling unit to keep your refrigerator at the desired temperature. Norcold's SC Fan Thermostat 618093 is compatible with all Norcold refrigerator models that have fans. Refer to manufacturer recommendations to ensure a proper fit. Quick and easy installation.