(Model J) Page 77
Warning: If the ventilator is under a
warranty agreement removal of the
inner covers may void the agreement.
Please refer to the warranty
documentation.
5. Remove the screws (B) to release the
electronic inner cover.
The ventilator is now ready for
maintenance.
Warning: Disconnect the ventilator
from the mains supply. Use an
earthing strap to earth the ventilator.