A washing machine in which a first main heater is not driven while wash water stored in a first tub and wash water stored in a second tub are simultaneously heated, and a method of controlling the same. A washing machine includes: a first tub configured to store wash water; a first main heater configured to heat wash water stored in the first tub; a first sub heater configured to heat wash water stored in the first tub; a second tub configured to store wash water; and a second heater configured to heat wash water stored in the second tub, wherein a power consumption required to drive the first main heater is greater than a power consumption required to drive the first sub heater, and the first main heater is not driven while wash water stored in the first tube and wash water stored in the second tub are simultaneously heated.

A washing machine in which a first main heater is not driven while wash water stored in a first tub and wash water stored in a second tub are simultaneously heated, and a method of controlling the same. A washing machine includes: a first tub configured to store wash water; a first main heater configured to heat wash water stored in the first tub; a first sub heater configured to heat wash water stored in the first tub; a second tub configured to store wash water; and a second heater configured to heat wash water stored in the second tub, wherein a power consumption required to drive the first main heater is greater than a power consumption required to drive the first sub heater, and the first main heater is not driven while wash water stored in the first tube and wash water stored in the second tub are simultaneously heated.

A clothing treatment apparatus includes a tub for providing a space in which washing water is accommodated; a drum rotatably provided inside the tub; a motor for rotating the drum; and an induction heater which is arranged on the outer surface of the tub and which heats the drum. The motor can rotate the drum at a first rotational speed at which laundry accommodated inside the drum is rotated while adhered to the inner circumferential surface of the drum, during heating of the drum by the induction heater.

A clothing treatment apparatus includes a tub for providing a space in which washing water is accommodated; a drum rotatably provided inside the tub; a motor for rotating the drum; and an induction heater which is arranged on the outer surface of the tub and which heats the drum. The motor can rotate the drum at a first rotational speed at which laundry accommodated inside the drum is rotated while adhered to the inner circumferential surface of the drum, during heating of the drum by the induction heater.

A multiple laundry treating machine, in which an auxiliary laundry treating device is coupled to a general laundry treating device, is disclosed. The multiple laundry treating machine includes a main laundry treating device for washing or drying laundry contained in an interior of the main laundry treating device, an auxiliary laundry treating device arranged at one side of the main laundry treating device, the auxiliary laundry treating device having a volume and a height respectively smaller than a volume and a height of the main laundry treating device, and having a laundry container formed in an interior of the auxiliary laundry treating device, and a connecting unit for connecting the main and auxiliary laundry treating devices, to enable communication or control operations between the main and auxiliary laundry treating devices. In accordance with the multiple laundry treating machine, it is possible to achieve a convenience in use and to save energy because a small amount of clothes or shoes can be dried by the auxiliary laundry treating device, without driving a laundry treating device having a relatively-large capacity.

A method for controlling a laundry treatment apparatus is disclosed. The laundry treatment apparatus includes an upper treatment device and a lower treatment device. The upper treatment device includes a drying drum in which target laundry to be dried is placed, an upper driver to rotate the drying drum, a circulation passage unit through which air flows into or out of the drying drum, a heat exchanger to dehumidify and heat the air, and a steam generator to supply steam to the drying drum. The lower treatment device includes a tub to store wash water therein, a washing drum provided in the tub so that target laundry to be washed is put into the washing machine and the laundry is washed and dried, a tub heater provided in the tub to heat the wash water, and a lower driver to rotate the washing drum. The method for controlling the laundry treatment apparatus includes performing, by the lower treatment device, a washing course including a water supply step, a washing (rinsing) step, and a dehydration step, and performing, by the upper treatment device, a drying course including a hot air supply step, a fan operation step, and a dryness sensing step, wherein the lower treatment device performs the washing course by changing a configuration of at least one of an operation of the tub heater, an execution time of the washing course, and an operation of the lower driver according to a progress state of the drying course, thereby performing the washing course.

A laundry treating apparatus includes a control device that performs a control method to control operation of the laundry treating apparatus. The control device performs test driving of a motor part for driving a washing part, determines control pattern on the basis of a result of the test driving, and controls the motor part in accordance with the control pattern.

A washing machine is provided. The washing machine includes: a display; a communication interface; and a processor, wherein the processor controls the display to display a user interface (UI) for overall control of the washing machine and a dryer connected to the washing machine in communication based on a first user input selecting a washing course being received, identifies a drying course of the dryer based on the washing course selected by the first user input and a control option selected by a second user input based on the second user input selecting one of the plurality of control options included in the UI being received, and control the communication interface to transmit information corresponding to the identified drying course.

A washing machine is provided. The washing machine includes: a display; a communication interface; and a processor, wherein the processor controls the display to display a user interface (UI) for overall control of the washing machine and a dryer connected to the washing machine in communication based on a first user input selecting a washing course being received, identifies a drying course of the dryer based on the washing course selected by the first user input and a control option selected by a second user input based on the second user input selecting one of the plurality of control options included in the UI being received, and control the communication interface to transmit information corresponding to the identified drying course.

Disclosed herein is a chemical dosing system for an appliance, such as a laundry washing machine or a dishwashing machine, having a water inlet, the system comprising a meter for determining the volume of water supplied to the appliance, a pump for dispensing a quantity of a chemical to the appliance and a control unit arranged to receive a signal from the meter and to cause to be dispensed to the appliance a volume of chemical that is proportional to the quantity of water supplied to the appliance. The disclosed system may enable a correct quantity of chemical to be automatically dispensed to many types of appliance, without the need to know anything about the appliance, or to derive electrical signal from the appliance.