Ruth J Richmond , VA May 07, 2016 Appliance: Model 417.94802301 Timer was not advancing Replaced timer motor. Hardest part was removing timer knob on this model. You need to access the back of broken timer knob and PULL OUT THE WHITE PIECE THAT LOOKS LIKE THE BACK OF THE KNOB. PULL IT COMPLETELY OUT AND KNOB WILL RELEASE. The rest is easy. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes