Originally Posted by HarrynSally
The switch is inside the fridge a wire the fits inside a plastic piece that slides up and down on the cooling fin. Some times it don't work I have to wiggle it and side it up and down finally it starts to work. When it works it works very good. It's a Dometic RM 2652.
That "switch" is called a thermister and acts like a thermostat..
There are many discussions about it and if you do a search, you will find many comments and other things about it.