Shirley C New Smyrna Beach , FL April 23, 2016 Appliance: General Electric Electric Dryer DX4500EA1WW Ge Dryer Dx4500ea1ww: Timer. How to replace Timer Knob. New timer from you and put it in myself. Took me longer to fond the right screwdriver to fix it than to actually change the part. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes