Sylvia H Dallas , TX August 16, 2019 Appliance: Hot Point Electric Dryer HTDX100ED3WW Hot Point Dryer Htdx100ed3ww: Dryer knob replaced. How to replace Timer Knob. Removed old dryer knob and replaced it with the new one. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes