WASHING MACHINE AND CONTROLLING METHOD SAME

A washing machine may include a tub; a detergent supply part to accommodate a liquid; a fluid channel connecting the detergent supply part and the tub; a motor controllable to supply the liquid accommodated in the detergent supply part into the tub through the fluid channel; a water supply part controllable to supply water into the tub; and a processor configured to: based on receiving a command for cleaning the fluid channel, identify a type of the liquid accommodated in the detergent supply part, based on the identified type of the liquid being water, control the water supply part to supply water into the tub, detect a level of water in the tub, and based on the detected level being greater than or equal to a predetermined value, control the motor so that the liquid accommodated in the detergent supply part is supplied into the tub through the fluid channel.