Eric P Woodbridge , VA December 02, 2014 Dishwasher would not fill when started I checked the overflow switch and fill valve first. The switch checked out fine. The fill valve had the correct resistance but failed mechanically as it was not opening. Replaced valve, problem solved! Very happy with the super fast part delivery too. 27 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes