Laundry treatment apparatus and control method for laundry treatment apparatus

A method of controlling a laundry treating apparatus having a laundry receiving unit providing a space for receiving laundry therein, a steam generator generating steam, a steam passage supplying the steam discharged from the steam generator to the laundry receiving unit, a water supply tank detachably coupled to a water supply pump, a connection pipe connecting the steam generator and the water supply pump, a water level sensor sensing a water level inside the steam generator, a water supply pipe connecting the steam generator and a water supply source, and a water supply valve opening/closing the water supply pipe, the method comprising:

• a pump controlling step of operating the water supply pump;
• a first water level sensing step of sensing the water level inside the steam generator by the water level sensor during the pump controlling step;
• and
• a water supply mode setting step of setting, based on the water level inside the steam generator being changed during the pump controlling step, a water supply operation through the water supply tank as a default water supply mode that is configured to be applied for subsequent water supply operations.