Michael F Little Suamico , WI July 25, 2019 Appliance: Whirlpool Washer WFW9200SQA10 Whirlpool Washer Wfw9200sqa10: F 20 error code. How to replace Washer Water Inlet Valve. NOT FIXED! Unfortunately for me I choose not to continue with my repairs as the cost would have equated to a new washer. AppliancePartsPros.com however was awesome & timely delivering the RIGHT parts that I needed and the technicians where very knowledgeable & POLITE! If I ever need appliance parts in the future I will be back to do business with them. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes