Monte H Saint Cloud , MN June 02, 2015 Appliance: General Electric General Electric GTDP300EM1WS Ge Dryer Gtdp300em1ws / : Needed to replace a broken knob on a ge electric dryer. How to replace Timer Knob Assembly. Contacted AppliancePartsPros.com who helped me find the righ part, ordered it and had it in hand within two days. 8 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes