Robert L Green Bay , WI April 17, 2021 Appliance: Frigidaire Refrigerator FGUS2642LF2 Frigidaire Refrigerator Fgus2642lf2 / : Intermittent sy ce and sy cf error codes. How to replace Electronic Control Board (Refrigerator). I searched the web for explanations of the error codes, found the answer on your website, watched your excellent video showing how to replace the control boards, and knocked the job out myself in 20 minutes! 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes