A dishwasher ( 100; 300; 500) comprising: a frame ( 110; 310; 510) defining a treatment chamber ( 115; 315; 515) for items to be washed; a door assembly comprising a door ( 125; 325; 525) movable between closed and open positions for selectively accessing the treatment chamber, the door comprising an access aperture ( 140 1,140 2; 340 1,340 2; 540) for allowing a user to access an adjusting member ( 135; 335; 535) actuatable to adjust a position of a decorative front panel ( 130; 330; 530) with respect to the door, a sliding member ( 180; 580) configured to slide along a sliding axis during door movement, the sliding member being coupleable to the decorative front panel such that, when coupled to the decorative front panel, a sliding of the sliding member during door movement causes the decorative front panel to slide with respect to the door along the sliding axis, a cover device ( 190; 390; 390'; 590) mounted or mountable on the door assembly and configured to take, when mounted on the door assembly, a first operative position in which the cover device leaves the access aperture of the door uncovered and a second operative position in which the cover device covers at least partially the access aperture of the door, the cover device being configured to mechanically cooperate with the sliding member so as to automatically move from the first operative position to the second operative position in response to the sliding of the sliding member, wherein the door (125; 325) comprises a guiding member (1401G;1402G; 3401G,3402G,325OS; 325OS,325OS') for guiding the cover device (190; 390; 390') between the first and second operative positions, the cover device being configured to move from the first operative position to the second operative position by sliding along the guiding member. a frame ( 110; 310; 510) defining a treatment chamber ( 115; 315; 515) for items to be washed; a door assembly comprising a door ( 125; 325; 525) movable between closed and open positions for selectively accessing the treatment chamber, the door comprising an access aperture ( 140 1,140 2; 340 1,340 2; 540) for allowing a user to access an adjusting member ( 135; 335; 535) actuatable to adjust a position of a decorative front panel ( 130; 330; 530) with respect to the door, a sliding member ( 180; 580) configured to slide along a sliding axis during door movement, the sliding member being coupleable to the decorative front panel such that, when coupled to the decorative front panel, a sliding of the sliding member during door movement causes the decorative front panel to slide with respect to the door along the sliding axis, a door ( 125; 325; 525) movable between closed and open positions for selectively accessing the treatment chamber, the door comprising an access aperture ( 140 1,140 2; 340 1,340 2; 540) for allowing a user to access an adjusting member ( 135; 335; 535) actuatable to adjust a position of a decorative front panel ( 130; 330; 530) with respect to the door, a sliding member ( 180; 580) configured to slide along a sliding axis during door movement, the sliding member being coupleable to the decorative front panel such that, when coupled to the decorative front panel, a sliding of the sliding member during door movement causes the decorative front panel to slide with respect to the door along the sliding axis, a cover device ( 190; 390; 390'; 590) mounted or mountable on the door assembly and configured to take, when mounted on the door assembly, a first operative position in which the cover device leaves the access aperture of the door uncovered and a second operative position in which the cover device covers at least partially the access aperture of the door, the cover device being configured to mechanically cooperate with the sliding member so as to automatically move from the first operative position to the second operative position in response to the sliding of the sliding member, wherein the door (125; 325) comprises a guiding member (1401G;1402G; 3401G,3402G,325OS; 325OS,325OS') for guiding the cover device (190; 390; 390') between the first and second operative positions, the cover device being configured to move from the first operative position to the second operative position by sliding along the guiding member.