WASHING MACHINE

PROBLEM TO BE SOLVED: To precisely detect abnormality of water supply at water supply time by a pump device by detecting a change degree of a water supply quantity by the pump device to supply water in a tub from a water source separate from service water, and detecting the existence of abnormality of the water supply by comparing a change degree detecting result and a reference value with each other. SOLUTION: An electric current is carried to a pump motor 27, and when water in a bath is sucked up and is supplied to a rotary tube of a washing machine, in a control device 40, whether or not a water level change during that time is not less than a prescribed value is judged every time when time (t0) passes from a start of operation of a pump device. When its judgment is YES, it is judged that a water level rise is direct and water supply is put in a stable condition. Next, a rise width of a water level during time (ts) from when its judgment is made, that is, a water supply quantity change degree is detected. Whether or not this water level rise width is not more than a reference value is judged, and when it is not more than the reference value, a buzzer 43 is buzzed, and abnormality of water supply is announced by a display part 37.