Patent ID: 7340793
Filing Date: 2008-03-11
Classification: D06F,G06Q

Abstract:
1. A method of controlling a washing machine, comprising steps of: (a) sensing an initial level of water in the washing machine; (b) storing in a memory a value indicative of the sensed initial water level if the sensed initial water level exceeds a predetermined substantive amount and executing a first water supplying step; (c) discharging the water from the washing machine, executing a second water supplying step, and sensing a current water level if the sensed initial water level is less than the predetermined substantive amount; (d) determining a water level variation based on the sensed current water level and the stored value; (e) repeating said step (c) if the determined water level variation continues to be less than a predetermined value for a first predetermined time period; (f) displaying an internal error if the determined water level variation continues to be less than the predetermined value after a predetermined number of repetitions of said step (e); and (g) executing a user-selected washing step if the determined water level variation exceeds the predetermined value.