A dishwasher including a washing chamber to wash dishes, a sump concavely formed at a lower portion of the washing chamber to collect water used in washing, a microfilter disposed at the sump to filter out dirt produced when the dishes are washed, and an ultrasonic generator to radiate ultrasonic waves toward the microfilter. Since the microfilter is automatically cleaned by the ultrasonic generator, a user may not need to manually clean the microfilter.

A system includes a dishwasher including a washing chamber, a sensor unit designed to detect a time curve of at least one sensor signal of a washing liquor and to output the detected time curve of the at least one sensor signal, a memory unit designed to store the time curve of the at least one sensor signal, an ascertaining unit designed to ascertain a temporal functional value based on the time curve of the at least one sensor signal, and a control device designed to carry out a washing program for washing washware in the washing chamber of the dishwasher and to carry out a specified action as a function of the temporal functional value.

A dishwasher includes in part a controllably-movable sprayer and a controller coupled to the controllably-movable sprayer and configured to control the controllably-movable sprayer to spray fluid onto one or more utensils disposed in a wash tub during a wash cycle. The controller is also configured to control the controllably-movable sprayer to spray fluid onto one or more walls of the wash tub by controllably-redirecting the controllably-movable sprayer to reorient one or more apertures of the sprayer away from the one or more utensils and towards the one or more walls.

A dishwashing appliance with a manifold for removing dishwashing sediment from recirculated dishwashing fluid is provided. The dishwashing appliance may include a tub, a spray system, a recirculation pump, a drainage pump, a manifold, and/or a shrouded filtration assembly in fluid communication with the spray system, manifold, the recirculation pump, and/or the drainage pump. The shrouded filtration assembly may include a manifold, a filter frame, and/or a sump housing. The manifold may include one or more sprayers.

A dishwasher includes: a tub, a water storage chamber provided under the tub and configured to store water from inside the tub, a filter disposed in the water storage chamber and configured to filter water flowing into the water storage chamber, a drain pump configured to discharge the water accommodated in the water storage chamber to the outside, and a controller including at least one processor, comprising processing circuitry. The controller may be configured to control the drain pump to discharge the water accommodated in the water storage chamber to the outside based on the lapse of a specified soaking time after completion of a water supply operation or a jet operation.

A dishwashing appliance with a manifold for removing dishwashing sediment from recirculated dishwashing fluid is provided. The dishwashing appliance may include a tub, a spray system, a recirculation pump, a drainage pump, a manifold, and/or a shrouded filtration assembly in fluid communication with the spray system, manifold, the recirculation pump, and/or the drainage pump. The shrouded filtration assembly may include a manifold, a filter frame, and/or a sump housing. The manifold may include one or more sprayers.