A pump inlet assembly and method of operating a dishwasher appliance are provided. The pump inlet assembly includes an inlet conduit providing fluid communication between a sump and a pump. The inlet conduit defines an integrally formed boss which is coupled with a sensor housing using an overmolding process. A pressure sensor is positioned in the sensor housing and is protected from wash fluid by an airgap defined by the boss. The measured pressure may be used to determine the water level within the dishwasher when the pump is not operating and the suction pressure within the inlet conduit when the pump is operating. The inlet conduit, boss, pressure sensor, and pump housing may be integrally formed by injection molding and/or overmolding processes to reduce costs and the likelihood of leaks.

A dishwasher (2.1, 2.2) has at least one wash system for spraying wash liquid and at least one final-rinse system for spraying final-rinse liquid, wherein a control device (50) is provided for actuating the at least one wash system and/or the at least one final-rinse system in accordance with a predefined execution program. To save on resources during operation, and meet the requirements for hygienic operation, which are defined in hygiene guidelines applicable locally (in a territorially delimited manner) at least a first execution program is stored in the control device (50), the execution program created taking into account requirements for hygienic operation which are applicable in a first territorial region, and at least a second execution program is stored in the control device (50), the second execution program created taking into account requirements for hygienic operation which are applicable in a second territorial region.

A dishwashing appliance, including methods of operation, is provided. The dishwashing appliance may define a vertical direction and include a tub, a base conductivity sensor mounted at a first level within the tub, and an elevated conductivity sensor mounted at a second level within the tub, the second level being higher along the vertical direction than the first level.

One embodiment provides a method for adapting a wash cycle of a dishwashing machine. The method comprises gathering sensor information from one or more sensors of the dishwashing machine. The sensor information gathered includes data identifying one or more adjustments to a rack layout of a dish rack of the dishwashing machine. The method further comprises determining a load configuration for the dish rack based on the sensor information gathered. The load configuration determined identifies one or more types of content loaded onto the dish rack. A wash cycle for washing the content loaded onto the dish rack is adapted based on the load configuration determined.

A warewash machine includes a housing defining a chamber for receiving wares, the chamber having at least one spray zone, a wash spray system for spraying wash liquid onto wares and a rinse spray system for spraying rinse liquid onto wares. At least one radar transceiver is located for detecting wares feeding into the chamber and/or for detecting wares within the chamber. A controller is associated with the radar transceiver and configured to identify one or more of ware location, ware movement, ware size, ware shape and/or ware material based upon outputs from the at least one radar transceiver. The controller is further configured to control at least one operating parameter of the machine based at least in part upon identified ware location, identified ware movement, identified ware size, identified ware shape and/or identified ware material.

A warewash machine includes a housing defining a chamber for receiving wares, the chamber having at least one spray zone, a wash spray system for spraying wash liquid onto wares and a rinse spray system for spraying rinse liquid onto wares. At least one ultrasonic transducer is located for detecting wares feeding into the chamber and/or for detecting wares within the chamber. A controller is associated with the ultrasonic transducer and configured to identify one or more of ware location, ware movement, ware size, ware shape and/or ware material based upon outputs from the at least one ultrasonic transducer. The controller is further configured to control at least one operating parameter of the machine based at least in part upon identified ware location, identified ware movement, identified ware size, identified ware shape and/or identified ware material.

A dishwasher, in particular a domestic dishwasher, includes a washing compartment for accommodating items to be washed, a container delimiting the washing compartment, a pump for circulating washing liquid in the container, a wash program control apparatus for executing at least one wash program and for activating the pump, and at least one optical detector connected to the wash program control apparatus for optically detecting at least one compartment section or segment of the washing compartment. The wash program control device adjusts the wash program based on the state in the washing compartment detected by the optical detector. The optical detector is rotatably mounted inside the container so that different compartment sections or segments of the washing compartment are detected by the optical detector in dependence on or as a function of the position and/or the location of the optical detector.

A control apparatus for a water flow is disclosed, which comprises an inlet connected to a water supply source; a discharge unit connected to a space where water is stored; a chamber for communicating the inlet with the discharge unit through a first communication unit connected to the inlet and a second communication unit connected to the discharge unit; a valve opening or closing the second communication unit; a first body fixed to any one of the inside of the inlet and the inside of the discharge unit; a first through hole provided to pass through the first body, forming a water flow; a second body fixed to the first body and located inside the first through hole; an elastic body fixed to the second body; a first support unit protruded from the first body to the elastic body, supporting the elastic body and forming a space between the elastic body and the first body to enter water the first through hole; and a second support unit protruded from the first body to the elastic body, selectively supporting the elastic body in accordance with a water pressure.

Disclosed a controlling method of a dishwasher comprising a water supply step for supplying wash water, a preliminary washing step for injecting the wash water to one or more dishes, a main washing step for injecting the wash water mixed with washing liquid to the dishes, a rinsing step for injecting the wash water to the dishes, and a heating step for heating the wash water in one or more of the preliminary washing step, the main washing step and the rinsing step, wherein a heater sensing step for determining an operational state of a heater heating the wash water is performed in the heating step in a state where the circulation of wash water is stopped.

An auxiliary gray water supply device captures used wash water from a commercial warewashing machine for supply to a pre-rinse station without substantial modification of the commercial warewashing machine. The captured wash water and treatment agent are delivered to a pre-rinse station for pre-rinsing of dishes that will be washed within the commercial warewashing machine.