Disclosed are a water purifying module self-cleaning method and a washing machine using the method. The water purifying module self-cleaning method comprises: starting a water purifying module self-cleaning program to feed water into a washing machine to reach a preset level; and repeating a heating rinsing program and a clear water replacement rinsing program in sequence until detecting that the water purifying module is clean, wherein the heating rinsing program comprises a washing water heating step, a membrane rinsing step, a standing step and a membrane air washing step. The water purifying module self-cleaning method can peel off impurities, macromolecular particles and the like from the surface of a filter system (5) of a water purifying module, thus ensuring the water purifying effect of the water purifying module and effectively prolonging the service life of the water purifying module.

An air jet generator according to an embodiment of the present invention includes: an impeller which applies centrifugal force to washing water flowing in a forward direction; a decompression portion which decreases a pressure of the washing water that flows; an air suction portion which is opened to allow air to flow into the decompression portion; a pressing portion which increases pressure so as to crush the air introduced from the air suction portion; an air tap which has a plurality of holes so as to crush the air contained in the washing water that passed through the pressing portion; and a reverse spray nozzle which sprays the washing water toward the air tap in a reverse direction.

A hydraulic system for a household appliance which includes a pump that is driven by an electric motor, an outlet conduit in fluid communication with an outlet of the pump, a magnetic check valve having a flap and a control unit. The control unit is configured to control the speed of the electric motor in a closed loop and to determine whether the flap of the check valve is in an open position or in a closed position based on the torque of the electric motor estimated from the current consumption of the electric motor and/or the voltage in the terminals of the electric motor.

A dishwasher with a tub at least partially defining a treating chamber, a liquid spraying system, a liquid recirculation system defining a recirculation flow path, and a liquid filtering system. The liquid filtering system includes a rotatable filter disposed in the recirculation flow path to filter the liquid and a diverter overlying and spaced from at least a portion of the upstream surface to form a gap there between.

A dishwasher appliance and method of operation is provided. The dishwasher appliance may include a tub defining a wash chamber, a coarse filter disposed, a recirculation pump, and a drain pump. The method may include activating the recirculation pump to flow wash fluid through the coarse filter in a primary flow direction, and activating the drain pump to flow wash fluid through the coarse filter in the primary flow direction for an initial purge cycle. Further included may be flushing wash fluid through the coarse filter and into the tub in a secondary flow direction opposite from the primary flow direction. Still further included may be activating the recirculation pump to flow wash fluid through the coarse filter in the primary flow direction, and activating the drain pump to flow wash fluid through the coarse filter in the primary flow direction for an additional purge cycle.

A dishwasher with a tub at least partially defining a treating chamber, a liquid spraying system, a liquid recirculation system defining a recirculation flow path, and a liquid filtering system. The liquid filtering system includes a rotatable filter disposed in the recirculation flow path to filter the liquid and a diverter overlying and spaced from at least a portion of the upstream surface to form a gap there between.

A dishwasher with a tub at least partially defining a treating chamber, a liquid spraying system, a liquid recirculation system defining a recirculation flow path, and a liquid filtering system. The liquid filtering system includes a rotating filter disposed in the recirculation flow path to filter the liquid.

Disclosed are a water purifying module self-cleaning method and a washing machine using the method. The water purifying module self-cleaning method comprises: starting a water purifying module self-cleaning program to feed water into a washing machine to reach a preset level; and repeating a heating rinsing program and a clear water replacement rinsing program in sequence until detecting that the water purifying module is clean, wherein the heating rinsing program comprises a washing water heating step, a membrane rinsing step, a standing step and a membrane air washing step. The water purifying module self-cleaning method can peel off impurities, macromolecular particles and the like from the surface of a filter system (5) of a water purifying module, thus ensuring the water purifying effect of the water purifying module and effectively prolonging the service life of the water purifying module.

A dishwasher for treating dishes according to at least one cycle of operation and methods for operating a dishwasher. The dishwasher may have a tub at least partially defining a treating chamber, a rotatable sprayer, a drive system operably coupled to the rotatable sprayer to effect movement of the rotatable sprayer, and a liquid recirculation system for recirculating sprayed liquid. The dishwasher may have a sump including a sensor enclosure, a first sensor element located within the sensor enclosure and configured to sense at least a portion of the rotatable sprayer, and a controller configured to receive output from the first sensor element and control the drive system and the liquid recirculation system to rotate the rotatable sprayer while selectively supplying liquid to the rotatable sprayer.

A dishwasher appliance and method of operation is provided. The dishwasher appliance may include a tub defining a wash chamber, a coarse filter disposed, a recirculation pump, and a drain pump. The method may include activating the recirculation pump to flow wash fluid through the coarse filter in a primary flow direction, and activating the drain pump to flow wash fluid through the coarse filter in the primary flow direction for an initial purge cycle. Further included may be flushing wash fluid through the coarse filter and into the tub in a secondary flow direction opposite from the primary flow direction. Still further included may be activating the recirculation pump to flow wash fluid through the coarse filter in the primary flow direction, and activating the drain pump to flow wash fluid through the coarse filter in the primary flow direction for an additional purge cycle.