Marvin M Doerun , GA February 10, 2020 Appliance: Frigidaire Refrigerator LGUS2642LF2 Frigidaire Refrigerator Lgus2642lf2 / : Water dispenser quit woring but all else worked fine. How to replace Switch Board. Rick on the Frigidaire appliance repair blog identified the main control board as the issue. I replaced it and the problem was fixed. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes