Randy C Bethlehem , PA April 09, 2017 Appliance: General Electric Electric Dryer DDE7900SBLWW Ge Dryer Dde7900sblww: No heat in the dryer. How to replace T/Stat L258 - 50. With a screwdriver and some mechanical aptitude. Nothing harder that a few screws to change the parts. 15 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes