Our Dometic refrigerator does not have an adjustment for the temperature. (That I am aware of anyway) it's from 2003. Dometic Americana. Now the ice cream is soft. Does it need to be recharged?
I have the same fridge and it's from 2003 as well. It has no problem cooling in tripple digits but I have checked it's installation and fine tuned that aspect. You should have no problem with it.