Darrell D Scarborough , ME March 29, 2016 Appliance: General Electric General Electric GTDP180ED0WW Ge Dryer Gtdp180ed0ww / : Stripped timer knob and stripped timer. How to replace Timer. This repair is simple and is just a matter of unplugging and replugging in wires and sliding on the knob…..nothing to it really just keep track of where the colored wires go. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes