While you wait for answers, we may have found some information which could help you.
Click here for Bosch Dryer FineBosch Exxcel 7 WTW863S1GB damp clothes, clogging filter?
Tumble dryer not drying clothes?
Bosch Classixx not heating even after trying red button reset ?
belt to slack. ?
Where can I get a wiring diagram or service manual for Bosch Classixx dryer?
Bosch Excel tumble dryer condensor?