Al Z South Boston , VA January 11, 2016 Teeth on timer switch and knob had stripped off Replaced both switch and knob. BE SURE TO UNPLUG! Remove knob by removing clip on timer shaft between knob and control panel with needle nose pliers . Remove back of control panel (three 1/4" head screws), push plastic control panel forward enough to get access, unclip wiring harness, remove one 1/4" head screw holding timer, slightly twist timer to release tabs, and remove. Assembly is reverse of above. Really easy, takes more time to get washer out and back in place than it does to replace parts. Any tool that will remove a 1/4" nut in a tight spot is OK, needle nose pliers are nice, but a screw driver or pocket knife will do. Parts arrived super quick. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes