A washing machine appliance includes a sump for collecting wash fluid, a water supply valve for supplying the wash fluid during a fill cycle, and a water level detection system including a pressure sensor for measuring sump pressures/fill levels. A controller is configured for operating the supply valve to fill the sump until a target volume is reached and obtaining a fill volume using the water level detection system. The controller determines that a fault condition exists based on a difference between the target volume and the fill volume, e.g., such as when the difference exceeds a predetermined fault threshold, and initiates a fault abatement process in response to determining that the fault condition exists.

Provided are a washing machine in which an auxiliary door can be safely and conveniently used and a method of controlling the same. The auxiliary door through which laundry can be additionally put into the washing machine, and the auxiliary door can be safely locked/unlocked. Because an open/closed state of the auxiliary door can be indirectly determined through a locking/unlocking operation of the auxiliary door, even when a door opening/closing detecting device has broken down, the auxiliary door can be safely used. The auxiliary door is unlocked by default and conditions on which the auxiliary door is locked for safety if necessary, are minimized during an operation of the washing machine so that use convenience of the auxiliary door can be enhanced, and a locked state of the auxiliary door is maintained according to the amount of laundry so that the laundry can be safely put into the washing machine.

A method of operating and a laundry treating appliance, including a rotatable drum at least partially defining a treating chamber into which laundry may be placed for treatment according to a cycle of operation, a processor programmed to at least as the laundry is being placed in the treating chamber, at least one of measure, sense, analytically determine, estimate, or receive as an input a first load size of the laundry in the treating chamber to define a determined first load size and select at least one of a color or an intensity corresponding to the determined first load size to define a first light setting.

A laundry treating appliance having a trating chamber and a bulk dispenser and a user interface configured to provide an indication to the user related to the bulk chemistry dispenser and a controller coupled with the user interface and the bulk treating chemistry dispenser and configured to execute an operating cycle including controlling the treating chemistry meter to dispense the predetermined amount of treating chemistry and determine a number of doses of treating chemistry available in the bulk treating chemistry dispenser and method of determining the number of doses and the types of a treating chemistry available in the bulk dispensing system, and providing an indication of the determination on a user interface.

Disclosed herein is a drain pump driving apparatus and a laundry treatment machine including the same. The drain pump driving apparatus and the laundry treatment machine including the same according to an embodiment of the present invention include a motor to operate the drain pump, an inverter to convert a direct current (DC) power to an alternating current (AC) power by a switching operation and output the converted AC power to the motor, an output current detector to detect an output current flowing to the motor, and a controller to control the inverter, wherein the controller may calculate a speed ripple of the motor based on the output current and performs a control operation based on the calculated speed ripple of the motor to change a speed of the motor.

A laundry treating appliance includes a treating chamber provided for receiving laundry for treatment, a controller having a memory in which is stored a set of executable instructions including a set of cycles of operations. The laundry treating appliance also includes a user interface operably coupled with the controller and having a touchscreen configured to provide an input and output function for the controller.

A method for controlling a laundry processing apparatus according to an embodiment of the present disclosure comprises steps of: inputting power to at least a second processing device and, through an input unit in the second processing device, inputting an installation inspection instruction for the second processing device; performing a primary inspection process by the installation inspection instruction; and performing a second inspection process after the primary inspection process is completed. In the primary inspection process, the control unit of the second processing device controls a plurality of inspections to proceed automatically in sequence, and the plurality of inspections may comprise at least two of a pairing inspection, a drawer closing state inspection, a drawer locking state inspection, and a lid closing state inspection.

A washing machine and an operating method thereof are disclosed. A washing machine according to an embodiment of the present invention comprises: a washing tub; a touch screen for outputting a graphical object corresponding to a washing-related function which can be performed by the washing tub; a detergent supplying unit which is formed to receive a laundry detergent in an inner space thereof and supply the received laundry detergent to the washing tub through a supply fluid path; and a control unit which detects a load and a contamination level of laundry in response to input of a washing start command and determines an input quantity of the laundry detergent received in the detergent supplying unit on the basis of the detected load and contamination level. In addition, the control unit displays a graphical object related to the determined laundry detergent input quantity on the touch screen.

A method of controlling a washing machine includes spraying water into a drum through a direct water nozzle, rotating the drum at a spin-dry rinse speed, draining water from a tub while rotating the drum at the spin-dry rinse speed, supplying water to the tub to increase a water level in the tub, circulating water in the tub to spray circulated water into the drum through a circulation nozzle, rotating the drum at a laundry adherence speed lower than the spin-dry rinse speed, and in a state in which draining water from the tub and spraying the circulated water are stopped and at least a portion of the drum is disposed below the water level in the tub, accelerating the drum from the laundry adherence speed to a first tub cleaning speed.

A water reuse system and controller for controlling water levels, temperature, and quality in the rinse water reuse system and methods of using the same, in order to optimize water usage. More particularly, the application pertains to a controller and methods of using the controller to regulate water levels and water quality in a water reuse system. As part of detailing the controller and methods of using the same, an apparatus for a water reuse system is also provided.