I’ll just say, Adventure-RV.net will replace your fridge, or replace the back half. Probably do repairs also. They are in Shipshewana, IN.
Just finished replacing the back half of our Norcold 2118. When we tested it at the shop, having temp on 7 lowest of 9, this am it was 23 degrees in the fridge and 4 degrees in the freezer. Changed it down to 1 which is highest, it was a more reasonable 36 degrees in the fridge.