KitchenAid Superba Side-by-Side Refrigerator Stumps Repairman

Our Kitchen Aid Superba Side-by-Side refrigerator started beeping (three beeps) and stopped evenly cooling last week. We called a repairman out and ran the diagnostics. Here are the results; 1-1, 2-1, 3-2, 4-1, 5-1, 6-1, 7-2. We have replaced the evaporator fan and the main control board. The evaporator fan is not running. The unit is cooling but the cooling is not circulating. Any assistance would be greatly appreciated.