While you wait for answers, we may have found some information which could help you.
Click here for Loud Noise SwitchingBosch Classixx not heating even after trying red button reset ?
Bosch Excel tumble dryer condensor?
Bosch excel condenser dryer 6307?
Drum not turning?
Help! my bosch classixx tumble dryer has x3 lights flashing and beeping!?
belt to slack. ?