Eric C Verona , WI September 04, 2015 Appliance: Whirlpool Dryer LEN2000LW0 Whirlpool Dryer Len2000lw0: Whirlpool dryer not heating fully leaving marks on clothes then not spinning. How to replace Dryer Drum Belt 92-1/4" 4-Rib. Replaced the felt seal which took care of the lack of heat and marking of clothes. The belt breaking is what finally twisted my arm into investigating how to do the repair, so replaced the belt as well. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes