Disclosed herein is a dish washing machine. The dish washing machine includes a washing tub in which dishes are stored, a nozzle provided at one side of the washing tub to spray washing water, a vane configured to move in the washing tub and deflect the washing water sprayed from the nozzle toward the dishes, a vane holder movably combined with a rail configured to guide a movement of the vane and configured to support the vane, a driving source configured to generate power for driving the vane to reciprocate, a belt driven to transfer the power generated by the driving source to the vane, and a direction changing member with one end configured to rotate with respect to the vane holder and another end configured to rotatably move with the belt when a movement direction of the vane is changed.

A method for operating a laundry washing appliance having a washing chamber to wash laundry the method includes selecting a default washing temperature and/or a washing cycle having a default washing temperature; supplying a detergent to the washing chamber; and determining a type of the detergent which has been added. When the detergent is of a first type, then the method includes comparing the default washing temperature with a threshold temperature and if the default washing temperature is higher than the threshold temperature, then emitting a warning signal and/or changing said default washing temperature.

A dishwasher appliance includes a tub defining a wash chamber for receipt of articles for washing, a fluid delivery device configured for delivering wash fluid into the wash chamber, and a camera assembly mounted with a view of the wash chamber including a location where the fluid delivery device is configured for delivering the wash fluid. A controller is configured to obtain consecutive images of the wash fluid in the wash chamber, determine whether the fluid delivery device is providing acceptable delivery of the wash fluid into the wash chamber, wherein the determining includes using the consecutive images of the wash fluid to determine whether there are differences in the wash fluid present in the wash chamber, and initiate corrective action if the fluid delivery device is not providing an acceptable delivery of the wash fluid into the wash chamber.

A method may include detecting one or more insertion actions for a loading one or more articles into the dishwashing appliance and directing, subsequent to the detected insertion actions, a dishwasher cycle within the dishwashing appliance. The method may also include detecting, subsequent to the dishwasher cycle, one or more removal actions for unloading the one or more articles from the dishwashing appliance. The method may further include evaluating the detected removal actions against the detected insertion actions and directing a user interface of the dishwashing appliance based on the evaluation.

A dishwashing apparatus may include a sump. The sump may include a sump pan configured to couple with a wash chamber of the dishwashing apparatus. The sump may include a sump well coupled to the sump pan and configured to collect the liquid from the sump pan. The sump well may include a well inlet in communication with the sump pan. The sump pan may convey the liquid to the well inlet. A recirculation port extending through a first wall of the sump well. A drain port may extend through a second wall of the sump well. The second wall defines a bottom of the sump well. The dishwashing apparatus may include a controller. The controller may monitor electrical characteristics of a pump. The controller may provide a notification if fluid is not flowing through the pump.

The dishwasher of one embodiment comprises a tub, a sump, a wash pump, a rack, a nozzle disposed at a lower end of the rack, rotated by a repulsive force of wash water supplied from the wash pump, spraying wash water to a wash target, and having a magnetic object coupled to one end of the nozzle so that a first pole and a second pole of the magnetic object face a rotation direction of the nozzle, a sensing module that senses a magnetic force generated by the magnetic object generated by a rotation of the nozzle, and a controller receiving sensing results from the sensing module, and determining one or more of a rotation direction of the nozzle, a rotation speed of the nozzle and whether the nozzle rotates, to output an abnormality notification to a user or control wash water supplied to the nozzle through the wash pump.

A dishwashing apparatus may include a sump. The sump may include a sump pan configured to couple with a wash chamber of the dishwashing apparatus. The sump may include a sump well coupled to the sump pan and configured to collect the liquid from the sump pan. The sump well may include a well inlet in communication with the sump pan. The sump pan may convey the liquid to the well inlet. A recirculation port extending through a first wall of the sump well. A drain port may extend through a second wall of the sump well. The second wall defines a bottom of the sump well. The dishwashing apparatus may include a controller. The controller may monitor electrical characteristics of a pump. The controller may provide a notification if fluid is not flowing through the pump.

A food equipment device, such as a warewasher, includes a powered component, the powered component being one of a heating element or a pump or a fan, and a power line path for delivering power to the powered component. A contactor is provided for controlling power delivery to the powered component, the contactor including main power contacts connected in the power line path and auxiliary contacts that operate the same as, or opposite to, the main power contacts. A monitoring system is operatively connected to the auxiliary contacts to monitor an open or closed state of the auxiliary contacts and includes a voltage source operatively connected to one of the auxiliary contacts and an electrical sensor for detecting one of (i) a voltage condition of the other auxiliary contact or (ii) a current flow condition between the auxiliary contacts.

A dish washing machine includes a door, a main body in which a washing tub for opening and closing the front opening of the door is provided, and a basket configured to be installed in the washing tub to be able to move in and out of the washing tub and to contain dishes. A sensing unit is configured to sense a basket identifier and a door identifier. A driving unit is configured to drive a vane. A controller is configured to control the driving unit such that cleaning is performed for each dish storage area of the basket based on the sensed result of a sensing unit. The controller determines the area where the dishes are laid, and controls the driving unit to clean the dish storage area where the dishes are laid.

Disclosed herein is a dishwasher including a main body provided with an open hole and a washing tub; a door configured to open or close the open hole; a door opening/closing member configured to open or close the open hole; an air curtain disposed in the main body, to operate a fan such that ambient air is sucked and the sucked air is discharged; a detector configured to detect information of the fan; and a controller configured to diagnose the failure of the fan based on the detected information of the fan, to control an operation of the door opening/closing member such that the door is opened at a predetermined open time and an open time of the door is delayed when the fan is a failure state, and to control an operation of the fan when the fan is a normal state during a drying operation.