Gary P Houston , TX May 01, 2020 Appliance: Whirlpool Gas Dryer WGD9500TW1 Whirlpool Dryer Wgd9500tw1: Dryer wouldn't heat. How to replace Whirlpool Drive Belt. Replaced thermal cut off and high limit thermostat 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes