how can i stop my bosch tumble dryer wtl 6500?

Mine beeps also! The condenser unit is located at the bottom of the dryer behind the plastic maintenance panel. It is one the LH side. Turn the locking levers towards each other to remove. Do not use sharp objects to clean the condenser, use water only. Spray the water across the condenser unit and down the unit. Let it dry completely before re-installing. Watch the locking buttons on the maintenance panel as mine are now stuck and the maintenance panel will not hold closed.

Equally frustrated
January 2010