Jimmy C Mustang , OK July 26, 2022 Appliance: Frigidaire Washer FAFS4474LW0 Frigidaire Washer Fafs4474lw0: The fill valve/water level sensor. How to replace Water Level Pressure Switch. This is the second replacement, last one lasted about 4 years. I have hard water and get lots of deposits. Installing some pre-filters to control scale and lime. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes