I have this GE fridge model PDRF2MBXARBB that the original complaint was fridge section not cooling well and the freezer was doing okay, but not great. I went and found the evap fan motor not running. Replaced the evap fan motor and board and motor fired right up. Now I'm getting a call that the fridge section is cooling well but the freezer section not so good. Another thing the customer mentioned was the display was reading 37 in fridge but -46 in freezer. What makes the display function? Thermistors in each section? Do the display boards fail often? Any help would be appreciated.