The Dometic DM2652 doesn't have temperature controls. My 2008 model freezes alomost everything on the top two shelves of the refridgerator. I use a low volume air circulator. Is there a way to lower the temperature in this model?

I have the same model in my 5th wheel. I found a white plastic piece on the far right side of the metal slats inside the refrigerator. This plastic piece has some kind of a probe attached to it. The white plastic piece slides up/down on the metal slat. There is a sticker next to this thing on the right side of the refrigerator (inside) that shows a range of "colder to coldest". I think if you slide that piece up/down, that is what controls the temp inside the frig.

I would check the thermistor,located at the back of the fridge.At the back there is a black box with lots of wires going to it remove the cover. There you will see fuses and a circuit board.Unplug where it says P2 thats your thermister now with an Ohm meter test not the front but the back of the plug should read about 6 Ohms.. now the other end located on the fins inside your fridge is the little white wire with the probe put the probe in a glass of ice and wait for about 5-10 mins. and test should read about up to 15 Ohms. Or you might have a bad ground on the unit easy tests you can do yourself.