Abstract: A dishwasher includes a pump facility to selectively supply washing liquor to first and second spray apparatuses, an intensive spray apparatus assigned to the first or second spray apparatus and brought into an activated or deactivated state by a switch valve, and a control apparatus for carrying out a washing program and for detecting a first pump flow while the first spray apparatus is supplied with washing liquor and detecting a second pump flow while the second spray apparatus is supplied with washing liquor, so as to form a current differential value as a function of the first and second pump flows and to ascertain a current switch state of the intensive spray apparatus as a function of the current differential value, a number of stored earlier differential values and a predetermined class differential value. The control apparatus adapts the washing program as a function of the current switch state.

Abstract: A household dishwasher includes a dishwasher cavity for receiving an item to be washed, a hydraulic circuit configured to circulate fresh water and/or wash liquor in the dishwasher cavity, a pump device configured to apply fresh water and/or wash liquor to the hydraulic circuit, and a closure manufactured from a water-soluble material. The closure is configured to disconnect part of the hydraulic circuit from the pump device during a one-time calibration process of the household dishwasher and dissolves in the fresh water and/or the wash liquor during and/or after completion of the calibration process.

Abstract: A dishwasher includes a pump device operated by a pump current for supply of washing liquor to a first spray device via a first hydraulic arrangement for providing a first washing zone and to a second spray device via a second hydraulic arrangement for providing a second washing zone. A third spray device is connected to one of the first and second hydraulic arrangements for providing an intensive washing zone. In a first switching state, the third spray device is isolated from the one hydraulic arrangement, and in a second switching state the third spray device is connected to the one hydraulic arrangement. A control device determines a current switching state of the third spray device as a function of a difference between the pump current when washing liquor is supplied to the first hydraulic arrangement and when washing liquor is supplied to the second hydraulic arrangement.

Abstract: A dishwasher includes a dishwasher interior for washing items to be washed with washing liquor. Arranged at a lower end of the dishwasher interior is a pump sump for collecting the washing liquor, and a sensor is arranged in the pump sump for outputting a sensor signal as a function of a presence of washing liquor at the sensor. A control apparatus configured to carry out a washing program selected from a number of washing programs is designed to determine a malfunction of a component of a hydraulic assembly as a function of the sensor signal and of a current operating state of the dishwasher.

Abstract: A dishwasher includes a pump device operated by a pump current for supply of washing liquor to a first spray device via a first hydraulic arrangement for providing a first washing zone and to a second spray device via a second hydraulic arrangement for providing a second washing zone. A third spray device is connected to one of the first and second hydraulic arrangements for providing an intensive washing zone. In a first switching state, the third spray device is isolated from the one hydraulic arrangement, and in a second switching state the third spray device is connected to the one hydraulic arrangement. A control device determines a current switching state of the third spray device as a function of a difference between the pump current when washing liquor is supplied to the first hydraulic arrangement and when washing liquor is supplied to the second hydraulic arrangement.