Michael L Stow , OH January 08, 2023 Appliance: Whirlpool Washer WFW9200SQ00 Whirlpool Washer Wfw9200sq00: F20 error code on wfw9200sq00 Whirlpool Duet washer. How to replace Water Valve. Replaced Water Value and Pressure Switch. WP8182862 (AP6011851) WPW10514214 (AP6022522) 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes