Michael K South Bend , IN December 20, 2019 Appliance: Whirlpool Dryer GEW9200LW0 Whirlpool Dryer Gew9200lw0: Dryer would heat up. How to replace Dryer Thermal Cut-Off Kit. Replaced a high heat thermal cut off. Turns out a hard duct about 10' long-running under a home addition was partially clogged with lint. After cleaning the duct and replacing the sensor the dryer was up and running again like new. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes