John K Parrish , FL October 06, 2023 Appliance: Whirlpool Electric Dryer GEW9250PW1 Whirlpool Dryer Gew9250pw1: My dryer would not heat or dry from any setting. I found out it was the timer switch that was causing the issue. How to replace Timer Knob Assembly. Bought a new timer switch, replaced it and now it works perfectly. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes