An ergonomic professional dishwasher (1) comprising a housing (2) with an internal wash chamber (3), in which the dishes (20) to be washed are contained, said dishes (20) being arranged on shelves (4) installed at certain heights, said shelves (4) being associated with washing rotors or nozzles (21 ), which have holes and slots (22) for passing the water coming from one storage tank (23) and taken from the water supply; among said storage tank (23) and said washing nozzles (21) there are at least two pumps (AP, BP, AP1, AP2, BP1, BP2, M1, M2, M1A, M2A), each of which is connected, by pipelines to at least one washing rotor (21 ), which is placed in at least two respective areas (SX, DX, SS, SD, IS, ID) of the wash chamber (3) superimposed on and/or adjacent to one another. The washing nozzles (21 ) placed in a first area (SX, DX, SS, SD, IS, ID) of the wash chamber (3) are actuated alternately to at least one of said washing nozzle (21) positioned in a second area (SX, DX, SS, SD, IS, ID) of the wash chamber (3).