307. release the locking system to remove the internal panesof glass (Fig. 5);8. turn the 2 fasteners 90° and extract them from their seats(Fig. 6);9. gently lift and carefully take off the uppermost panemarked by a decorative frame on 4 sides (Fig. 7).Clean the oven door with lukewarm water and a soft cloth.Do not use products such as scouring pads, steel wool,abrasive sponges or acids because they could damage thespecial heat-reflecting surface of the internal panes of glass.After cleaning, reassemble the panes in the door and thenthe oven door, following the procedure described above inreverse. Make sure you reposition the panes correctly.Fig. 5Fig. 690°12Fig. 7