Method for controlling water supply of dishwasher

Abstract

A dishwasher and a method for controlling a dishwasher are provided. The dishwasher may include a washing tub that defines a washing space in which one or more dishes may be placed; an injection unit that injects wash water to the dishes; a sump provided underneath of the washing tub; a drive that supplies and circulates the wash water stored in the sump to the injection unit; and a drainage pump that drains the wash water from the sump. The method for controlling the dishwasher may include supplying wash water to the dishwasher; washing dishes using the wash water; rinsing the washed dishes; and drying the dishes. The method may further include exhausting by operating the drainage pump for a predetermined period of time to exhaust air from the drainage pump after the supplying of the wash water to the dishwasher.

What is claimed is: 
     
         1 . A method for controlling a dishwasher, the method comprising:
 supplying wash water to the dishwasher;   exhausting air remaining in a path of the wash water in the supplying of the wash water to the dishwasher;   washing dishes by injecting wash water to the dishes;   rinsing the dishes; and   drying the dishes.   
     
     
         2 . The method for controlling the dishwasher of  claim 1 , wherein the exhausting of the air remaining in the path of the wash water is performed for a predetermined period of time when the supplying of the wash water to the dishwasher starts to be performed. 
     
     
         3 . The method for controlling the dishwasher of  claim 1 , wherein the air exhausting of the air remaining in the path of the wash water is performed after a predetermined amount of wash water is supplied in the supplying of the wash water to the dishwasher. 
     
     
         4 . The method for controlling the dishwasher of  claim 1 , wherein the air exhausting of the air remaining in the path of the wash water includes operating a drainage pump for draining the wash water. 
     
     
         5 . The method for controlling the dishwasher of  claim 4 , wherein the drainage pump includes:
 a drainage chamber in which wash water is stored;   an impeller that drains the wash water from the, drainage chamber; and   a drainage path connected to the drainage chamber, and wherein the exhausting of the air remaining in the path of the wash water includes rotating the impeller in a predetermined direction in which the air is rotated to move toward the drainage path.   
     
     
         6 . The method for controlling the dishwasher of  claim 5 , wherein the exhausting of the air remaining in the path, of the wash water includes repeatedly and intermittently operating the drainage pump for a predetermined period of time. 
     
     
         7 . The method for controlling the dishwasher of  claim 6 , wherein the exhausting of the air remaining in the path of the wash water includes repeating the intermittent operation process in which the drainage pump is operated for 1˜2 seconds and paused for 1.5˜2.5 seconds. 
     
     
         8 . A method for controlling a dishwasher including a washing tub that defines a washing space in which one or more dishes are placed; an injection unit that injects wash water to the dishes; a sump provided underneath the washing tub; a drive that supplies and circulates the wash water stored in the sump to the injection unit; and a drainage pump that drains the wash water from the sump, the method for controlling the dishwasher comprising:
 supplying wash water into the dishwasher;   washing dishes using the wash water;   rinsing the washed dishes;   drying the dishes; and   exhausting air by operating the drainage pump for a predetermined period of time to exhaust air from the drainage pump after the supplying of the wash water to the dishwasher.   
     
     
         9 . The method for controlling the dishwasher of > claim 8 , wherein the drainage pump includes;
 a drainage chamber in which wash, water is stored;   an impeller that drains the wash water from the drainage chamber; and   a drainage path connected to the drainage chamber, and wherein the exhausting of air includes rotating the impeller in a predetermined direction in which the air is rotated to move toward the drainage path.   
     
     
         10 . The method for controlling the dishwasher of  claim 9 , wherein the exhausting of air by operating the drainage pump for the predetermined period of time to exhaust air from the drainage pump after the supplying of the wash water to the dishwasher includes repeatedly and intermittently operating the drainage pump for the predetermined period of time. 
     
     
         11 . The method for controlling the dishwasher of  claim 10 , wherein exhausting of air by operating the drainage pump for the predetermined period of time to exhaust air from the drainage pump after the supplying of the wash water to the dishwasher includes repeating the intermittent operation process in which the drainage pump is operated for 1˜2 seconds and paused for 1.5˜2.5 seconds. 
     
     
         12 . The method for controlling the dishwasher of  claim 8 , wherein the exhausting of air by operating the drainage pump for the predetermined period of time to exhaust air from the drainage pump after the supplying of the wash water to the dishwasher is performed in the predetermined period of time when the supplying of wash water to the dishwasher starts to be performed. 
     
     
         13 . The method for controlling the dishwasher of  claim 8 , wherein the exhausting of air by operating the drainage pump for the predetermined period of time to exhaust air from the drainage pump after the supplying of the wash water to he dishwasher is performed after a predetermined amount of wash water is supplied in the supplying wash water to the dishwasher. 
     
     
         14 . The method for controlling the dishwasher of  claim 13 , wherein the predetermined amount is a first reference level or a second reference level. 
     
     
         15 . The method for controlling the dishwasher of  claim 14 , wherein the drainage pump includes:
 a drainage chamber in which wash water is stored;   an impeller that drains the wash water from the drainage chamber; and   a drainage path connected to the drainage chamber, and wherein the exhausting of air includes rotating the impeller in a predetermined direction in which the air is rotated to move toward the drainage path.   
     
     
         16 . The method for controlling the dishwasher of  claim 15 , wherein the first reference level is a water level to a height of an upper end of an outlet hole of the sump located in a center of the drainage chamber and the second reference level is a water level to a height of an upper end of an outlet pipe of the drainage chamber 
     
     
         17 . A method for controlling a dishwasher including a washing tub that defines a washing space in which one or more dishes are placed; an injection unit that injects wash water to the dishes; a sump provided underneath the washing tub; a drive that supplies and circulates the wash water stored in the sump to the injection unit; and a drainage pump that drains the wash water from the sump, the method for controlling the dishwasher comprising:
 supplying wash water into the dishwasher;   washing dishes using the wash water;   rinsing the washed dishes;   drying the dishes; and   exhausting air by operating the drainage pump for a predetermined period of time to exhaust air from the drainage pump after the supplying of the wash water to the dishwasher, wherein the exhausting of air by operating the drainage pump for the predetermined period of time to exhaust air from the drainage pump after the supplying of the wash water to the dishwasher is performed after a predetermined amount of wash water is supplied in the supplying wash water to the dishwasher, the predetermined amount of wash water being sensed by a water level sensor.   
     
     
         18 . The method for controlling the dishwasher of  claim 17 , wherein the predetermined amount is a first reference level or a second reference level. 
     
     
         19 . The method for controlling the dishwasher of  claim 18 , wherein the drainage pump includes:
 a drainage chamber in which wash water is stored;   an impeller that drains the wash water from the drainage chamber; and   a drainage path connected to the drainage chamber, and wherein the exhausting of air includes rotating the impeller in a predetermined direction in which the air is rotated to move toward the drainage path.   
     
     
         20 . The method for controlling the dishwasher of  claim 19 , wherein the first reference level is a water level to a height of an upper end of an outlet hole of the sump located in a center of the drainage chamber and the second reference level is a water level to a height of an upper end of an outlet pipe of the drainage chamber.