Alison G Oakland , CA May 24, 2019 Appliance: Whirlpool Dryer GGW9200LW0 Whirlpool Dryer Ggw9200lw0: Failed dryer door switch. How to replace Door Switch. The APP video describing and demonstrating how to replace a DUET dryer door switch is excellent! The part came quickly. The location of my dryer made for a challenge and added time to the repair. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours