A dishwasher includes a tub at least partially defining a treating chamber with an access opening, a sump fluidly coupled to the treating chamber, at least one sprayer emitting liquid into the treating chamber, a pump, a conduit fluidly coupling the sump to the pump and the pump to the at least one sprayer, thereby defining a recirculation circuit through which the liquid sprayed into the treating chamber collects in the sump and is pumped back to the at least one sprayer, a filter assembly provided in the sump and having a filter through which at least a portion of the liquid passes, and an insert sleeve at least partially located within the filter assembly.

A dishwasher and a control method thereof are disclosed. The dishwasher includes a tub accommodating an object to be washed, a spray arm rotatably provided inside the tub to spray wash water toward the object to be washed, a sump for storing wash water and collecting wash water sprayed into the tub therein, a filter separably mounted to the sump to remove foreign substances from wash water, a wash pump for supplying wash water stored in the sump to the spray arm, and a circulation passage for diverting at least a portion of the wash water supplied to the spray arm by the wash pump to the sump. After the dishes are washed, all of the wash water introduced into the wash pump is diverted into the filter. Foreign substances present in the wash water are collected in the filter and are discharged outside along with the wash water.

A liquid recirculation system having a pump for recirculating liquid and a liquid filtering system for filtering the recirculating liquid. The liquid filtering system includes a filter disposed in the recirculation flow path to filter the liquid and a flow diverter or flow diverter to aid in cleaning the filter.

A dishwasher appliance includes a tub defining a wash chamber with a sump positioned at a bottom of the wash chamber for receiving fluid from the wash chamber. A filtering system is positioned between the wash chamber and an outlet of the sump portion. The filtering system includes a first filter and a second filter. The second filter includes a hollow annular base portion and a filter body extending between the base portion and the first filter. The second filter also includes a plurality of nozzles circumferentially arranged about the hollow annular base portion, each nozzle of the plurality of nozzles in fluid communication with the hollow annular base portion and oriented towards the filter body for cleaning the filter body. An inlet in fluid communication with the hollow annular base portion may also be provided.

A conveyor warewasher has at least one washing zone, at least one rinsing zone and a conveyor apparatus. A device for sensing a loading of the conveyor apparatus, which device is configured in order to determine, continuously or at predetermined or determinable times and/or events, a loading of the conveyor apparatus with washware. A control device is configured in order to, during a learning or observation phase over at least one observation period or over a plurality of observation periods each relating to a washing shift or a washing day of the conveyor warewasher or a portion thereof, determine a chronological profile of the loading of the conveyor apparatus with washware to be conveyed, wherein the control device is configured in order to deduce a pattern or a regularity based on the determined chronological profile of the loading of the conveyor apparatus with washware.

A dishwasher appliance includes a wash tub, a sump for collecting wash fluid, and a cylindrical filter screen positioned within the sump. A wash pump assembly includes a wash pump impeller and a supply conduit, the wash pump impeller being configured for urging the wash fluid through the cylindrical filter screen and into the supply conduit. A filter cleaning assembly includes a filter cleaning manifold positioned proximate the cylindrical filter screen and in fluid communication with the supply conduit and one or more vertical spray arms extending along the vertical direction adjacent the cylindrical filter screen, the one or more vertical spray arms defining a plurality of outer ports in fluid communication with the filter cleaning manifold, the plurality of outer ports being positioned and oriented for directing the wash fluid at least partially along a circumferential direction about the cylindrical filter screen.

A dishwasher appliance includes a wash tub defining a wash chamber, a sump housing defining a sump for collecting wash fluid, the sump housing defining a drain basin, and a fluid circulation assembly positioned within the sump. The fluid circulation assembly includes a drain cover seated within the drain basin, a wash pump assembly seated on top of the drain cover, a filter cleaning manifold positioned over the wash pump assembly, and a plurality of mechanical fasteners that pass through filter cleaning manifold and into the sump housing to attach the filter cleaning manifold to the sump housing and to secure the wash pump assembly and the filter cleaning manifold within the sump.

A water-using household appliance includes a pump sump, a filter element arranged at least partially in the pump sump, and a nozzle unit arranged on the pump sump. The nozzle unit produces an annular flow between the pump sump and the filter element in order to remove dirt from the filter element, with the annular flow flowing around the filter element only in one direction of flow.

A dishwashing appliance with a filtration assembly capable of removing/shredding/pulverizing large dishwashing debris from recirculated dishwashing fluid is provided. The dishwashing appliance may include a tub, a spray system, a recirculation pump, a drainage pump, and a grinding type filtration assembly in fluid communication with the spray system, the recirculation pump, and the drainage pump.

It is an aspect of the present disclosure to provide a dish washing machine capable of actively responding to a problem when circulation of washing water is not smoothly performed by sequentially and selectively performing a bubble removal operation, a filter blockage removal operation, and a water supply operation, and a method of controlling the same.