Olimpia splendid MAESTRO SMART 9HP - Board Housing Cover Removal; Grille Removal Process

MAESTRO SMART 33
9.4 Board housing cover removal
Remove all the mounting screws (1).
Remove the cover (2).
9.5 Grille removal
Remove the body (Cf. 9.2 Body removal, on p. 32). Remove all the
mounting screws (1).
Remove the front grille (2), rotate the rear grille (3) and remove the
filter (4).