Patent ID: 11926955
Assignee: LG ELECTRONICS INC.
Field: Other consumer goods (Other fields)
Classification: CPC D | IPC D

Claim 0:
1. A laundry dryer comprising:
a cabinet;
a drum disposed in the cabinet and configured to receive hot air or steam or both;
a steam unit disposed in the cabinet and configured to generate the steam;
a storage tank disposed in the cabinet and configured to store water;
a supply pump disposed between the steam unit and the storage tank, the supply pump being configured to supply the water stored in the storage tank to the steam unit; and
a steam controller configured to:
operate the steam unit based on receiving a steam supply command for supplying the steam to the drum,
determine a water level of water in the steam unit or the storage tank,
based on completion of supply of steam into the drum, operate the supply pump to thereby supply water in the storage tank to the steam unit to a predetermined target water level of the steam unit,
determine a water shortage state of the storage tank based on the water level in the steam unit being less than the predetermined target water level after supplying the water to the steam unit for a predetermined time from an operation start time of the supply pump, and
based on the water level of water in the steam unit or the storage tank being less than or equal to the predetermined target water level, output a water shortage notification.