公开(公告)号：US20210131008A1

公开(公告)日：2021-05-06

申请号：US17085572

申请日：2020-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Danbi Lee ,  Minhyoung Kim ,  Bongsu Cho

IPC: D06F33/42

Abstract: A laundry treatment machine includes: a washing tub; a motor configured to supply rotational force to the washing tub; a water level sensor configured to detect a water level of the washing tub; a communicator configured to transmit data to a server or receive data from the server; and a controller server configured to control to stop operation, when a drainage error is detected during drainage operation of the washing tub, and, when tub washing schedule information is received from the server through the communicator, to control to perform operation to wash the washing tub based on the tub washing schedule information.