Clean the condensing filter
The condensing filter found in the lower left hand side of the machine may require cleaning. Start by taking off the lower cover or plinth found at the base of the machine. Simply pull it away from the machine as shown. Next twist the three red toggles to unlock the filter and pull it out of the machine.
Pull the filter out and peel off the foam pad, wash the pad in warm water and dust any fluff out of the mesh part with a soft brush. Put every thing back together and try the dryer again.
simply peel the foam pad away from the filter body