What do the error codes E01 through E05 mean on my Bosch dryer?

E01 indicates the door is not closed properly, E02 signals a power supply issue, E03 means the dryer is overloaded, E04 indicates a clogged lint trap, and E05 shows the condenser or sump is dirty. For a comprehensive list of error codes and detailed troubleshooting steps, refer to the full product manual.