While you wait for answers, we may have found some information which could help you.
Click here for Bosch Dryer ErrorTumble dryer not drying clothes?
Bosch excel condenser dryer 6307?
Bosch exxcel condenser dryer WTL6307GB?
Help! my bosch classixx tumble dryer has x3 lights flashing and beeping!?
Drum not turning?
Bosch Exxcel 7 WTW863S1GB damp clothes, clogging filter?