Refrigerator Not As Cold As It Ought To Be

marcsbigfoot20b27 wrote:
In short you cant change the delta of the fridge and freezer.
Well, not in terms of setpoints anyhow. You may be able to change it by using an internal fridge fan increasing efficiency, but the fridge temp thermister and control board cycles the whole unit on and off.

When on, your freezer gets full "Coldness" or heat absorption for lack of better explanation, what is left goes to the fridge compartment. Working as designed you probably see a 30-35 delta so 0 freezer and 30-35 in the fridge on a good working unit. If you want it colder you can fool the thermister by thinking it is warmer, (I have a Dometic adjustable thermister box) and the cooling unit AC or propane will stay on longer. Then the freezer will get a few degrees colder and so will the fridge, mostly at the same delta.
The experts can chime in if Im wrong.

Note, mine is a Dometic Americana Rm2652 that is not "adjustable" there is no numbers to select, just the fin thermister.

Thanks for your excellent clear and detailed explanation!

Using the highest setting on our refrigerator ("5"), our freezer section is around 0 degrees and the refrigerator section is indeed 30-35 degrees ... so it looks like our Norcold is working as it should. Using a setting of "5", I wish I could raise the refrigerator section's temperature a bit so, for example, milk doesn't freeze with the freezer section still kept around 0 degrees at a setting of "5".