Philip R Shiloh , IL July 31, 2022 Appliance: Samsung Washer WA50M7450AW/A4-00 Samsung Washer Wa50m7450aw/A4-00: The washer set button knob broke. How to replace Dryer Knob Encoder Assembly. Ordered a new knob and took out little bits of the old one. Took the new knob and pressed it over the stump and presto works like new. 14 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes