Information Needed for Refrigerator Decision
I am having problems with my Dometic refrigerator. It is great at keeping everything cold and frozen, but there is frost build up in the refrigerator and freezer. In the refrigerator, the fins frost u...
Forum Discussion
Dutchstar02 wrote:
The thermistor turns off the fridge when it gets cold. If it never shuts off then the defrost cycle won't work and you get a buildup of ice on the fins in the fridge. To check the thermistor have the fridge running on propane. Put the end of the thermistor in a glass of ice water. If it's working properly, it will shut off the gas supply. It's easier to test on propane because you can't tell if it's off when it's running on electric. If the thermistor is working then it's likely a circuit board.
FYI, The temp of the evap fins will ALWAYS be 10 degrees colder than the items in the refer. That means, on a correctly operating RV refer, the fins will ALWAYS be colder than 32 degrees. Ice/Frost will happen on the fins because the interior humidity will have its moisture form on the fins due to that colder temp. THAT is a normal occurrence. Unlike Norcold Temp Thermisters, I have never really found a Dometic Thermister fail. Now, your test is invalid. The Thermister senses LOWER temps than 32 degrees(Temp of icewater). Doug
