While you wait for answers, we may have found some information which could help you.
Click here for Replace Belt Tumble DryerTumble dryer not drying clothes?
Bosch Classixx not heating even after trying red button reset ?
Bosch Excel tumble dryer condensor?
Bosch exxcel condenser dryer WTL6307GB?
Drum not turning?
Where can I get a wiring diagram or service manual for Bosch Classixx dryer?