Niurka F Hialeah , FL October 07, 2019 Appliance: Frigidaire Wall Oven Microwave Combo FPMC2785KFA Frigidaire Oven Fpmc2785kfa: Error code 5F. How to replace Controller (Electronic Control Board). We replaced the oven electronic control board. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes