Jeffrey Y New Castle , CO November 03, 2020 Appliance: Whirlpool Washer WFW9250WL00 Whirlpool Washer Wfw9250wl00: The water level sensor would not allow machine to operate. How to replace Washer Water Inlet Valve. After reading other stories I decided to replace both the sensor and the fill valve. I ordered the parts on Friday thinking I would replace them Monday. I actually received them the next day and replaced them right away. The only challenge was the torque screw holding the fill valve. The screw has a security head button in the center. I had to use pliers to remove it. I then replaced it with a different screw. Everything went very fast. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes