Kathi D Lester , WV May 08, 2021 Appliance: Whirlpool Washer WFW9200SQ02 Whirlpool Washer Wfw9200sq02: F20 code would not complete full wash cycle. How to replace Water Level Pressure Switch Hose. Replaced the water pressure switch. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes