Norcold DC Fan Thermostat 618093 (fits all models with fans)

This is the fan thermostat that helps with air flow behind the cooling unit. If you have insufficient cooling and your fans are not kicking on, this is most likely the cause. To test this you can jumper the fans to see if they kick on by bypassing the thermostat. If they do turn on and it's hot enough back there to operate the thermostat correctly, you need to replace the thermostat. You can also try putting a hair dryer on the thermostat after verifying that the fans do infact work.