Dometic RM2611 Refrig section not cooling

[ChrisFV]

My Dometic RM2611 refrigerator is cooling the freezer OK, but not the refrigerator section. Have confirmed the AC heater is working, and thermistor tests good.
Temperatures: Ambient 70F, Freezer 25F, Refrig 50F. Any ideas on possible causes and things to check?

 

[rjshiflet49]

We don't have that model of refrigerator, but we have had a similar issue. Turns out our problem was a build-up of ice in the freezer that was blocking air from moving from the freezer into the refrigerator portion. Our refrigerator is 12-volt only and generally cools extremely well. But we were camping along the Texas coast and I suppose the heat and high humidity caused the extra ice to form. If I understand correctly, our unit cools the freezer portion first, then blowers circulate that cold air into the refrigerator area. Once it ices up, the cold air can't move to the lower portion.

 

[TheLooks]

This can be tough to track down. If you don't have fans on the back that move air across the fins at the top of the cooling unit, that is where I would start. Check that baffles are in place to direct the air across the fins and check that nothing is blocking the flow. Check that insulation is in place on top of the fridge. Try not to have the wall it is in, particularly in a slide out, facing the sun on hot days.