A dishwasher and method utilize a cam-based position sensor that is configured to sense multiple rotational positions for a discretely directable tubular spray element driven by a tubular spray element drive.

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 washing operation and a drying operation are performed while a basket which is located inside a washing tub and accommodates dishes reciprocates in a vertical direction of a washing tub due to a driving device. The basket reciprocates in order to pass through an injection nozzle which injects washing water and an air nozzle which injects air to perform the washing operation while passing through the injection nozzle and to perform the drying operation while passing through the air nozzle. Through this, a small amount of dishes may be washed and dried in a short time and the dishes may be washed using a small amount of water and energy.

The invention relates to a system, wherein the system has a washer (1) that is preferably in the form of a commercial washer (1). The washer (1) may be in the form of a utensil washer or dishwasher. Further, the system has at least one sensor device for capturing at least one process-relevant parameter of the washer (1) and/or for monitoring at least one function-relevant component of the washer (1). The system additionally has a machine control unit having a device for wireless data transmission for transmitting received sensor data from the sensor device to an external device (2).

A warewash machine includes a chamber for receiving wares, the chamber having at least one wash zone. A refrigerant medium circuit includes a first condenser and a second condenser, the first condenser located upstream of the second condenser in the refrigerant circuit. The refrigerant medium circuit includes a first flow path through the first condenser and a second flow path in bypass of the first condenser, and a valve for selectively controlling whether at least some refrigerant medium flows along the first flow path or the second flow path.

A warewash machine includes a chamber for receiving wares, the chamber having at least one wash zone. A refrigerant medium circuit includes a first heat exchanger arranged to deliver refrigerant medium heat to a first fluid and a second heat exchanger arranged to provide a heat exchange relationship between the refrigerant medium and a second fluid, the first heat exchanger located upstream of the second heat exchanger in the refrigerant medium circuit. A bypass arrangement for causing at least some refrigerant medium to selectively bypass at least one of the first condenser or the second condenser based upon subcooled refrigerant medium condition.

A door opening unit for automatically opening a door for a dishwasher includes an actuator, a link member that makes a straight motion due to pressurization of the actuator and has a plurality of legs, a plurality of rotation levers that are connected to the plurality of legs of the link member, and a plurality of pressurization members that are connected to the plurality of rotation levers. Since the plurality of pressurization members may pressurize a plurality of points of the door, the door may be more smoothly opened. Also, the door opening unit for automatically opening the door includes a restoring spring that restores positions of the plurality of pressurization members when power to the actuator is turned off.

A household appliance includes a control device configured to carry out a treatment program from a plurality of treatment programs, with each of the plurality of treatment programs being determined by a plurality of program parameters, an output unit configured to output a feedback survey in accordance with a feedback cycle to a user of the household appliance, and an adjustment unit configured to adjust the feedback cycle depending on a user feedback detected by an input means.

A lifting device for a dishwashing machine includes an electrical drive mechanism constructed to move a dishware receptacle of the dishwashing machine between a start position and an end position. A detection unit detects a current draw of the electrical drive mechanism over a travel distance of the dishware receptacle in the dishwashing machine, and an identification unit identifies a status of the lifting device on the basis of the current draw of the electrical drive mechanism detected over the travel distance.

A dishwasher includes a tub that accommodates dishes; a nozzle assembly that sprays washing water; a vane assembly that is moved between a first position and a second position of an inside of the tub and changes a progression path of the washing water so that the sprayed washing water can be directed toward the dishes; and a controller that moves the vane assembly to the second position if the vane assembly is disposed at the first position. When a linear washing portion washes a small quantity of dishes by spraying washing water while making a reciprocal motion in part of an inside of a washing chamber, a washing time can be reduced, and concentrated washing can also be performed.