Shawn M Kansas City , MO March 08, 2019 Appliance: Model WHIRLPOOL WFW9450WW00 Keep getting a F20 error After watching the video instructions on your website I replaced the water inlet valve on my washing machine. The video was extremely helpful. Probably could not have replaced the valve without it. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes