Arrangement for providing a wash zone

The present invention relates to an arrangement for creating a wash zone with intensified washing in a washing chamber (11) of a dishwasher (10), said arrangement comprising: a spray arm (8) arranged to rotate around an axis (A); a water pump (19) arranged to feed water to the spray arm (8); a support element (18) arranged to rotatably supporting the spray arm (8) in the washing chamber (11), said support element (18) is arranged to lock the spray arm (8) in at least one position within the washing chamber (11) when the pressure in the water fed from the water pump (19) via the support element (18) to the spray arm (8) exceeds a predetermined level; and a control unit (25) arranged to control the operation of the water pump (19), wherein the control unit (25) increases the pressure in the water fed from the water pump (19) to the spray arm (8) to lock the spray arm (8) and thereby create said wash zone. The invention furthermore relates to a dishwasher comprising said arrangement and a method for controlling the dishwasher.