Brian M Glen Lyon , PA November 08, 2025 Appliance: Roper Electric Dryer RES7745RQ0 Roper Dryer Res7745rq0: Timer wasn't working properly and finally the dryer stopped working and wouldn't start. How to replace Timer. Replaced the timer. Dryer is now working properly. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes