A method of operating a dishwasher includes a tub that at least partially forms a treating chamber and a reuse tank fluidly coupled to the tub for storing liquid from the tub for subsequent reuse in the treating chamber. The method includes supplying liquid from the reuse tank to the tub, sanitizing liquid in the tub by heating the liquid to a sanitizing temperature by operating a heating element located in the tub and maintaining the liquid at or above the sanitizing temperature for a sanitizing time period sufficient to sanitize the liquid, and supplying the liquid in the tub to the reuse tank after sanitizing to sanitize the reuse tank.

A safety device against leaks of liquid for a liquid-conducting household appliance comprises a valve arrangement that can be electrically switched between a closing position and an opening position, to prevent or enable, respectively, a flow of liquid from a liquid-supply source to the household appliance. The device further comprises:a first pipe (13) impermeable to liquid, for the flow of liquid,at least one hydraulic unit (12), having a duct for the liquid (30),a flow sensor in the at least one hydraulic unit (12). The first pipe (13) is connected in fluid communication with the duct (30) and extends longitudinally at least in part within a second pipe (14) that is impermeable to liquid, in such a way that defined between at least part of the first pipe (13) and of the second pipe (14) is a gap (G) having a proximal end and a distal end. The at least one hydraulic unit (12) has a respective hydraulic body (16) that defines the duct (30). The flow sensor is a non-mechanical flow sensor that includes at least two electrical detection elements (42) within the duct (30).

A domestic dishwasher includes a wash container which has a loading opening. The loading opening of the wash container can be closed by a door. A suction apparatus is provided to suction steam and/or air, in particular moisture-laden air, escaping from the loading opening. The suction apparatus has at least one inlet window located outside a wet chamber of the wash container.

A household dishwasher includes a washing chamber, a controller apparatus configured to perform a wash program from a number of wash programs for washing items to be washed arranged in the washing chamber, an optical sensor configured to capture an optical sensor signal of the washing chamber during performance of the wash program, and an evaluating unit configured to ascertain a subsequent loading of items to be washed by a user as a function of the captured optical sensor signal of the washing chamber, to determine a point in time of the subsequent loading in the wash program, and to perform a predetermined action as a function of the ascertained subsequent loading and the determined point in time.

A dishwasher includes: a dishwasher body including a tub that defines a washing space and a sump disposed vertically below the tub and configured to accommodate washing water; a heat pump including a compressor, a condenser, an expansion apparatus, and an evaporator; a drain storage unit connected to a drain pipe of the sump and configured to receive washing water discharged from the sump; a drain pipe open-close valve that opens and closes the drain pipe; and a controller that controls the heat pump and the drain pipe open-close valve. The evaporator is configured to exchange heat with the drain storage unit, and the controller controls the drain pipe open-close valve to open the drain pipe to move washing water of the sump to the drain storage unit when the sump is drained.

A dishwasher with a tub at least partially defining a treating chamber, a spraying system for spraying liquid into the treating chamber, and a recirculation system for recirculating liquid sprayed in the treating chamber to the spraying system with a variable filtration system. Method of operating includes recirculating a liquid, supplying a first portion of the liquid through the spraying system, supplying a second portion of the liquid through the filter, and varying the amount of the second portion.

A dishwasher appliance that includes features for prevention and detection of flood events and leaks without sacrificing performance or efficiency of the dishwasher appliance is provided. Moreover, methods for detecting and preventing such flood events and leaks are also provided.

A method for removing a deposition of scale on a heating element may include turning on the heating element to heat the liquid in the heating space, determining a first value (Tv1) of temperature of the heating element and/or a first time period (tp1) during heating of the liquid. The method may further include turning off the heating element and turning on the heating element at a second value (Tv2) of temperature of the heating element and reheating the liquid in the heating space until temperature of the heating element reaches a third value (Tv3) related to the first value (Tv1) and/or until a second time period (tp2) related to the first time period (tp1) is reached. A household appliance may also be provided.

A method for remotely monitoring and operating a dishwashing machine includes providing a remote appliance monitoring and control unit. The unit has a portable housing having an indicator, a wireless network interface, a processor, and a memory having machine readable instructions configured to be executed by the processor. The instructions are executed to determine an attribute of the dishwashing machine and to control the indicator based on the determination of the attribute. The method includes communicatively coupling the unit to the dishwashing machine, and using the unit to determine the attribute of the dishwashing machine. The method comprises causing the unit to wirelessly communicate the determined attribute to a remote user computer together with a geographic location of the dishwashing machine. The method includes taking a responsive action in response to the determined attribute.

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).