A dishwasher includes a tub at least partially defining a treating chamber, a rotatable spray arm comprising an outlet, and a liquid supply conduit fluidly coupled to the spray arm. A pump can be fluidly coupled to the liquid supply conduit and operated to flow liquid through an aperture in the liquid supply conduit and through the outlet in the rotatable spray arm.

A free-standing Energy Recovery System enables sanitary recovery of thermal energy with heat transfer from hot waste effluent to incoming domestic water. The source of the effluent may, for example, be conventional commercial ware-washing, clothes washing equipment, pasteurization and other industrial processes.

A dishwasher and method of operating a dishwasher according to a cycle of operation are described herein. The dishwasher includes a tub at least partially defining a treating chamber, a rotatable spray arm comprising a nozzle outlet, and a liquid supply conduit fluidly coupled to the spray arm. A pump can be fluidly coupled to the liquid supply conduit and operated to flow liquid through an aperture in the liquid supply conduit.

A dish washer according to an embodiment of the present invention includes a cabinet which forms a dish washing space; a door which opens and closes an opened front surface of the cabinet; wherein door includes an out plate which is made of metal plate material and forms the front surface of the door and at least a portion of appearance of a peripheral surface of the door by being bent the front surface, an operating unit which is formed on the peripheral surface of the door so that a user operates by touch, a PCB assembly which is in close contact with a rear surface of the operating unit and on which a plurality of touch sensors detecting displacement of the operating unit are mounted, a mounting bracket which is mounted to be fixed to an inside surface of the out plate, and an elastic member which is mounted on the mounting bracket and presses and supports the PCB assembly to the a rear surface of the operating unit.

A method for reducing energy consumption by a medium heating device, the method comprising the step: scheduling an operation (501) of the first device (111) requiring heating of a first medium; scheduling an operation (502) of the second device (112) requiring heating of a second medium; the method being characterized in that it further comprises the steps of: sending (504), from the first device (111), information regarding its operation cycles and water parameters to the second device (112); rescheduling (505) operations of the liaised devices (111, 112) so that drain heat of the first medium is reused to heat a fresh intake of the second medium by the second device by means of a heat exchanger (160); instructing (506), the reprogrammed devices (111, 112) to start their operations according to the new schedule.

A method for the dosing of cleaning agents in cleaning machines includes the steps: receiving the control information items; wherein the control information items are dependent on an information item about a cleaning machine; determining the progress of a cleaning operation; dosing of cleaning agent depending on the received control information items and the determined progress of the cleaning operation; wherein the information item about the cleaning machine can be manually input via a user interface.

In a method for controlling a dishwasher, a user preference is captured for a cleaning cycle of the dishwasher. Parameters associated with a cleaning cycle of the dishwasher are read over a plurality of cleaning cycles, and a user input that indicates satisfaction by the user with one of the cleaning cycles is captured. An optimization is determined of a parameter of the parameters on the basis of the user input and the user preference.

A method for the process programming of a household appliance includes the following steps: receiving a sequential program by the household appliance; checking the sequential program with respect to a predetermined device condition by the household appliance; and releasing the sequence of the sequential program in the household appliance as a function of the result of the check.

A dishwasher may include a washing chamber and a wash arm arrangement having a wash arm rotatably arranged in the washing chamber, and a satellite spray device arranged on the wash arm. The dishwasher may include at least one sensor configured to sense a rotational position of the wash arm and a control unit configured to monitor consecutive sensed rotational positions of the wash arm. The control unit may be configured to calculate a rotational speed of the wash arm based on an elapsed time and a rotational distance between two sensed rotational positions, and may be configured to estimate a current rotational position of the wash arm based on an elapsed time since a previously sensed rotational position and the calculated rotational speed. The control unit may adapt the pumping intensity of a pump of the dishwasher based on the estimated current rotational position of the wash arm.

A cleaning apparatus for cleaning articles to be cleaned includes at least one cleaning chamber; at least one conveying device configured to convey the articles to be cleaned in a conveying direction through the cleaning chamber, the at least one conveying device comprising a plurality of tracks arranged side by side; at least one nozzle system configured to act upon the articles to be cleaned with at least one cleaning fluid; at least one sensor configured to detect a loading of the conveying device with articles to be cleaned; and at least one control means programmed to select at least one operating mode of the cleaning apparatus corresponding to the loading of the conveying device detected by the sensor, and to propose the selected operating mode to a user of the cleaning apparatus by providing a visual indicator on one or several tracks of the conveying device.