A method for controlling a dishwasher includes: supplying washing water to a sump; rotating an impeller disposed in a washing pump by a washing motor so that the washing water flows into the washing pump from the sump; operating a heater disposed in the washing pump so as to heat the washing water existing in the washing pump and generate steam to supply to a steam nozzle; and supplying the washing water or steam in the washing pump to the steam nozzle by rotating the impeller at a second set rotational speed lower than a first set rotational speed by the washing motor. The method further includes closing a selector valve, configured to open and close a path between the washing pump and the steam nozzle, when the impeller rotates at the first set rotational speed or higher.

The present disclosure relates to a dishmachine that includes one or more features directed to water, energy or material savings. The disclosed dishmachines are still capable of meeting the soil demands of the articles to be cleaned.

A filter device for dishwashers or washing machines comprises a filter housing, an inlet opening for raw water, and an outlet opening for clean water. The inlet opening is formed in a first housing wall. A filter for filtering the raw water is arranged downstream from the inlet opening in the flow path of the raw water. The outlet opening is formed in the first housing wall.

A household dishwasher includes a washing container holding a dishwasher load, and a spray arm for applying washing liquor and/or fresh water to the dishwasher load. The spray arm is mounted for rotation about an axis of rotation and is actively driven by a drive entity. The drive entity includes a drive shaft mounted for rotation about an axis of rotation which extends in parallel relation to and at a distance from the axis of rotation of the spray arm.

A method of treating at least one of laundry or dishes in a treating chamber of an appliance comprising, recirculating liquid through the treating chamber, centrifugally removing particles greater than a predetermined size from the liquid during recirculation of the liquid, and coagulating particles greater than the predetermined size in the liquid during recirculation of the liquid.

A washing appliance includes a treating chamber, a sprayer emitting liquid into the treating chamber, and a recirculation circuit including a centrifugal separator and an electrocoagulation unit both fluidly coupled to the recirculation circuit.

A household dishwasher includes a receiving compartment for receiving an item to be washed, a pump sump, and a heat pump assembly through which, during operation, a heat transfer medium flows. The heat pump assembly includes a plate condenser configured to enable a transfer of heat from the heat transfer medium to a washing liquor circulating in the household dishwasher. A spray assembly supplies washing liquor to the item to be washed. A first flow path extends from the pump sump to the spray assembly for conducting the washing liquor, and a second flow path extends from the pump sump to the plate condenser. Means are provided to prevent or hinder foreign matter that is swept along with the washing liquor from adhering to a washing-liquor-facing surface of the plate condenser, or to detach foreign matter adhering to the washing-liquor-facing surface from said surface.

A warewash machine for washing wares includes a chamber for receiving wares, the chamber having an inlet side, an outlet side, multiple spray zones between the inlet side and the outlet side, and a conveyor arrangement for moving wares along a conveyance path through the multiple spray zones in a ware travel direction. A prescrapping zone is located toward the inlet side of the chamber, the prescrapping zone having a blow-off system comprising a plurality of prescrapping nozzles and a compressed air feed line for delivering compressed air to the prescrapping nozzles.

A dishwasher filter device based on micro-nano aeration includes a cylinder for accommodating washing liquid and a filter unit. The filter unit is in communication with an inner cavity of the cylinder by a water inlet pipe. The filter unit is connected to a micro-nano bubble generator by a third pipe. The micro-nano bubble generator is connected to a water outlet unit. The water outlet unit includes a fourth pipe connected to the micro-nano bubble generator and a dissolved air release assembly connected to the other end of the fourth pipe. The dissolved air release assembly is disposed at a bottom of the cylinder.

Disclosed are a dishwasher that sprays wash water to wash dishes or cookware and a method of controlling the same. The method of controlling the dishwasher includes supplying wash water from an external water source to a sump and intermittently driving a washing pump to change the level of water around a filter, thereby removing filth from the filter.