Donovan D Florissant , MO May 31, 2015 Appliance: Maytag Washer- Horizontal Axis MAH5500BWW Maytag Washer Mah5500bww: Tub not filling fast enough would stop with "nf" (no fill) error code and go into spin to empty. How to replace Valve, Water. Replaced Water Valve Assembly. One of the easiest repairs I've ever done. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes