To extend the service life of a drain pump without unnecessarily driving the drain pump for discharging dew-condensed water dripping from the evaporator of a heat pump and stored in a drain tank, without requiring high output of the drain pump and without requiring a large capacity of the drain tank.
Firstly, the running rate of the drain pump is controlled according to the result of detection by cloth amount detecting means detecting the amount of the clothes. Secondly, the running rate of the drain pump is controlled according to the result of detection by cloth quality detecting means detecting the cloth quality of the clothes. Thirdly, the running rate of the drain pump is controlled according to the degree of progress of a drying step. Fourthly, the running rate of the drain pump is controlled according to a course of different drying speed in the drying step.
SAKUMA TSUTOMU
TOSHIBA CONSUMER ELECT HOLDING
TOSHIBA HOME APPLIANCES CORP
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