Derrick S Odenton , MD July 19, 2016 Appliance: Whirlpool Dryer LE5800XSW3 Whirlpool Dryer Le5800xsw3: Dryer heating element burn out. How to replace Dryer Thermal Cut-Off Kit. I replace my dryer heating element it took me five min to do the job. I also replace the themostat , themal cut-off kit & screen; but the dryer heating element was the problem. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes