Luxton B Cut Off , LA May 20, 2015 Appliance: Samsung Washer WA5451ANW/XAA-0001 Samsung Washer Wa5451anw/Xaa-0001 / : Water would not shut off and was overfilling the tub. How to replace Washer Water Valve Assembly. Replaced water valve and water valve level switch. Switch was not the problem but I had tried to adjust the water level and did not want to chance it so I replaced it. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes