Fridge to cold

Dometic DM2652LBX refrigerator, on a moderate day, gas or 120v, thermistor warmest position on the fin, 0 or below in fridge part, temp does change with thermistor position       freezer fine. Other than that it functions great.    Any head knowledge of minor issue?  I know these units are liked and not so by others. This is a 2016 manufacture.