Craig K Arlington , WA August 08, 2015 Appliance: Model GEWJSR4160G0WW The timer control knob teeth had broken off and wouldn't engage the timer Removed the control knob clip and broken knob assembly with needle nose pliers and replaced with a new control knob from Appliance Parts Pros. Simple and inexpensive repair! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes