The present invention relates to a method of and a device (40) for, detecting an operational state of a dishwasher (10), in particular activation of extra wash zones and overfill situations. The device (40) is arranged to operate a motor (22) driving a dishwasher circulation pump (21) at at least one rotational speed differing from a nominal rotational speed and measure operating current of the motor (22) driving the dishwasher circulation pump (21). Further, the device is arranged to determine whether the dishwasher (10) operates in an operational state differing from a nominal operational state based on the measured circulation pump motor operating current.

An appliance, system, and method for operating an appliance is provided. The appliance, system, and method are configured to execute operations including determining when a dispensing device for a detergent meets or exceeds a detergent level threshold, determining if a first wash mode corresponding to a performance wash mode is activated, and changing operation from the first wash mode to a second wash mode corresponding to an efficiency wash mode when the dispensing device meets or exceeds the detergent level threshold and the first wash mode is activated.

The present invention relates to a method of handling process water in a household appliance (1) and to a household appliance, for example a dish washer. The household appliance comprises a wash tub (3) for performing wash program cycles and a tank (5) for storing process water to be re-used in a following program cycle, the method comprising the steps of: determining (101) the type of detergent used in the household appliance with a sensor unit (7), measuring (102) the amount of detergent in the process water with the sensor unit, comparing (105) at least one sensor unit output value with a predetermined threshold value to define the quality of the process water, and storing (106) at least a part of the process water from a rinse cycle in the tank (5) when the sensor unit output value complies with the predetermined threshold value related to the quality of the process water.

In a method for operating a dishwasher, in particular a domestic dishwasher, items to be washed arranged in an interior of the dishwasher are washed during a wash program. A quantity of a specific gas in the interior is determined during the wash program, and a hygiene program is started and/or a notification is outputted to a user of the dishwasher relating to a start of the hygiene program as a function of the determined quantity of the specific gas.

A commercial dishwasher includes at least one washing system for washing washware, having at least one rinsing system for rinsing the washed washware, and optionally a drying system for optimal drying of the rinsed washware. The dishwasher includes a camera system configured to capture at least one image of the washware to be treated in the dishwasher. An evaluation device is further provided, which is configured so as to create a pattern relating to the temporal usage behavior of the operator of the dishwasher, in particular in the course of a profiling process based on the captured images.

A water-conducting domestic appliance includes a dispensing apparatus configured to dispense a cleaning agent into a dishwasher cavity of the water-conducting domestic appliance, and a controller configured to carry out a number of wash programs for washing items to be washed and to carry out a cleaning program for cleaning the water-conducting domestic appliance. The cleaning program includes a first cleaning phase with a first cleaning agent at a first temperature and a second cleaning phase with a second cleaning agent at a second temperature. The controller is configured to actuate the dispensing apparatus such as to dispense the second cleaning agent into the dishwasher cavity during the second cleaning phase.

A household dishwasher includes a washing items receptacle and a sensor unit which is designed to generate a sensor signal as a function of a change in position of the washing items receptacle and/or a force exerted on the washing items receptacle.

A fluid circulation system for dishwasher appliances includes a sump and a pump. The fluid circulation system further includes a filter at least partially disposed within a chamber of the sump and surrounding an impeller of the pump. The fluid circulation system includes a diverter. The fluid circulation system further includes a cleaning manifold disposed proximate an outer surface of a sidewall of the filter, the manifold defining a plurality of apertures for flowing fluid towards the outer surface of the sidewall of the filter.

Disclosed is a dishwasher (10). The dishwasher (10) comprises a body (101), an air passage (102), catalyst pieces (103) having nanometer titanium dioxide, and an ultraviolet lamp (104) used for emitting ultraviolet light to the catalyst pieces (103). An accommodating cavity (1011) used for accommodating tableware is defined in the body (101). A gas inlet (1012) and a gas outlet (1013) are defined in the wall of the accommodating cavity (1011). An air outlet of the air passage (102) is in communication with the gas inlet (1012), and an air inlet of the air passage (102) is in communication with the gas outlet (1013). The catalyst pieces (103) are disposed in the air passage (102). The ultraviolet lamp (104) is disposed in the air passage (102).

A warewasher includes a scrap reducing arrangement located within a wash zone for capturing scrap debris falling downward toward a tank. The scrap reducing arrangement is configured to automatically deliver captured scrap debris away from the tank when liquid spraying within the wash zone ceases.