Richard S Mantua , OH October 14, 2014 Appliance: Model GLDP280EDOWS Timer failed to advance and locked up grey knob asm broke off Ordered both parts and got them in 2 days, removed 3 screws on back panel of dryer and removed defective timer , installed wires on new timer and put back in place and installed new knob , very easy repair only took 10 minutes and dryer was back up and running 21 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes