A method of controlling a dishwasher including a tub, at least one spray nozzle, a rack, and a microphone, includes: spraying, by the at least one spray nozzle, washing water while the at least one spray nozzle is rotating, analyzing a characteristic of a sound wave input to the microphone, the sound wave being generated based on the washing water colliding with one or more washing targets in the tub, determining whether a washing target made of a set material is present among the one or more washing targets based on the analyzed characteristic, determining, based on determining that the washing target made of the set material is present, a location in which the washing target made of the set material is present according to the analyzed characteristic, and reducing an amount of impact applied to the washing target made of the set material by the washing water.

An air vent for a dishwasher drain assembly having an overmolded volute is disclosed. The air vent has a surface with a first aperture defined therethrough and at least a portion of the surface sloping downward toward the first aperture. A flexible member having a shape is positioned across the portion of surface. The flexible member flexes toward and sealably engages the first aperture when a force presses the flexible member, and the flexible member is positioned away from the first aperture allowing air to pass through the first aperture when the force does not press the flexible member.

A home appliance is provided. The home appliance includes a motor configured to execute a predetermined function of the home appliance, and a processor configured to determine an upper limit of noise of the home appliance based on ambient noise information of the home appliance and control a driving speed of the motor to have magnitude of noise of the home appliance equal to or less than the upper limit of the noise.

Disclosed is a dishwasher comprising: a tub for containing dishes; a nozzle assembly for ejecting washing water; a vane assembly for changing the path of the washing water, while moving from a first position to a second position inside the tub, such that the ejected washing water is directed towards the dishes; and a controller for stopping the vane assembly, changing the movement speed of the vane assembly, or changing the movement direction of the vane assembly while the vane assembly moves from the first position to the second position, wherein the washing water can also be ejected to corner portions of the tub.

A dishwasher for treating dishes according to an automatic cycle of operation can comprise a tub defining a treating chamber with an access opening. A door can be selectively moveable to a closed position to close the access opening and can have a metal inner panel with a rear face confronting the treating chamber when the door is in the closed position. The door can have a lower edge overlying a portion of the tub when the door is in the closed position. A ventilating strip can be provided along the lower edge and can have vent openings passing through the strip. A seal can extend between the tub and the ventilating strip when the door is closed to form a liquid seal between the ventilating strip and the tub.

A dishwasher detergent dispenser includes a viscous damper allowing a dispenser door to be preloaded with a sufficiently strong spring to overcome resistance caused by detergent encrustation and the like while significantly reducing noise caused by the door opening.

A dishwasher appliance includes a tub that defines a wash chamber for receipt of articles for washing. A sump is positioned at a bottom of the wash chamber for receiving fluid from the wash chamber. A fluid circulation assembly is at least partially disposed within the sump. The fluid circulation assembly is mounted in the sump with a resilient mounting post, whereby the fluid circulation assembly is vibrationally isolated from the sump.

A dishwasher appliance includes a circulation pump, a pressure sensor upstream of the circulation pump, and a diverter downstream of the circulation pump. A method of circulating fluid includes operating the circulation pump at a first speed less than a target speed for a first amount of time. The method also includes determining a first minimum pressure value based on the first speed and a position of the diverter and monitoring a pressure upstream of the circulation pump with the pressure sensor. The method further includes operating the circulation pump at a second speed greater than the first speed when the monitored pressure continuously exceeds the first minimum pressure value for a second amount of time and determining a second minimum pressure value based on the second speed and the position of the diverter after operating the circulation pump at the second speed for a third amount of time.

An air vent for a dishwasher drain assembly having an overmolded volute is disclosed. The air vent has a surface with a first aperture defined therethrough and at least a portion of the surface sloping downward toward the first aperture. A flexible member having a shape is positioned across the portion of surface. The flexible member flexes toward and sealably engages the first aperture when a force presses the flexible member, and the flexible member is positioned away from the first aperture allowing air to pass through the first aperture when the force does not press the flexible member.

A turbidity sensor assembly for a dishwasher appliance is provided. The turbidity sensor assembly measures the turbidity of wash fluid in a manner similar to conventional turbidity sensors, but also includes an integral water level indicator. The water level indicator is an opaque buoyant ball that rises and falls with the water level to provide a water level indication that can be used to shut off the drain pump when the sump is empty. More specifically, when the water level drops below a predetermined level, the opaque ball blocks the transmission of light between the emitter and receiver of the turbidity sensor, thus indicating that the sump is almost empty. As a result, the pump operating during a drain cycle need only operate long enough to drain the sump, and this may be achieved without an additional measuring device or complicated control system.