Richard L Conroe , TX January 22, 2015 Appliance: Whirlpool Washer WFW9500TW01 Whirlpool Washer Wfw9500tw01: F35 suds. How to replace Electronic Control Board (Main User Interface/Control). I replaced the water fill sensor as so many places suggest. That did not work as so many places suggest. Eventually i fell into appliancepartspros.com and saw there suggestion of a new ccu. I did some checking but was nervous about buying an expensive part ani it not working. With appliancepartspros,com I didn't have that concern as they have a great return policy. As it went, the washer worked perfectly. It took me about 40 minutes and only required a nut driver, screw drivers, and now it runs great!! 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes