Mikdad J Peachtree Corners , GA January 09, 2021 Appliance: Frigidaire Washer ATF7000ES0 Frigidaire Washer Atf7000es0: Unit was displaying e90 error code. How to replace Control Board. Replaced with a new control board ordered from Appliance Parts Pros. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes