Method of controlling dishwasher

Abstract

A method of controlling a dishwasher including washing dishes using washing water in which a detergent is dissolved, draining the washing water in which the detergent is dissolved, first rinsing the dishes using washing water in which no detergent is dissolved, and second rinsing the dishes using washing water in which a descaling agent is dissolved. The dishwasher includes a tub which accommodates the dishes, and a sump which receives the washing water supplied into the tub, and the descaling agent is input during a process of supplying the washing water from the outside of the tub to the sump.

What is claimed is: 
     
         1 . A method of controlling a dishwasher, comprising:
 washing dishes using washing water in which a detergent is dissolved;   draining the washing water in which the detergent is dissolved;   first rinsing the dishes using washing water in which no detergent is dissolved; and   second rinsing the dishes using washing water in which a descaling agent is dissolved.   
     
     
         2 . The method of  claim 1 , wherein the washing of the dishes includes heating the washing water. 
     
     
         3 . The method of  claim 1 , wherein the second rinsing of the dishes is performed after draining the washing water in which no detergent is dissolved. 
     
     
         4 . The method of  claim 1 , wherein the first rinsing of the dishes includes rinsing the dishes using washing water in which a rinse is dissolved. 
     
     
         5 . The method of  claim 1 , wherein the descaling agent includes an organic acid. 
     
     
         6 . The method of  claim 5 , wherein the organic acid is citric acid. 
     
     
         7 . The method of  claim 1 , wherein a constant amount of the descaling agent is input to be dissolved each time the descaling rinse is performed. 
     
     
         8 . The method of  claim 1 , wherein the dishwasher includes a tub which accommodates the dishes, and a sump which receives the washing water supplied into the tub, and
 the descaling agent is input during a process of supplying the washing water from the outside of the tub to the sump.   
     
     
         9 . The method of  claim 1 , further comprising:
 drying the dishes after the second rinsing of the dishes.   
     
     
         10 . The method of  claim 1 , wherein the first rinsing of the dishes includes heating the washing water. 
     
     
         11 . The method of  claim 1 , further comprising:
 prewashing the dishes using the washing water in which no detergent is dissolved; and   draining the washing water that is used in the prewashing of the dishes,   wherein the washing of the dishes is performed after the washing water used in the prewashing process is drained.   
     
     
         12 . The method of  claim 1 , wherein the second rinsing of the dishes is performed as a final step of a rinsing process. 
     
     
         13 . A method of controlling a dishwasher, comprising:
 washing dishes by applying a detergent;   performing a rinsing process in which the detergent used to wash the dishes is removed with washing water; and   draining the washing water used to rinse the dishes, and thereafter, performing a descaling process in which the dishes are rinsed by supplying washing water with descaling agent.   
     
     
         14 . The method of  claim 13 , wherein the performing of the rinsing process includes spraying high-temperature washing water heated by a heater onto the dishes. 
     
     
         15 . The method of  claim 13 , wherein the performing of the rinsing process includes spraying washing water, in which a rinse is dissolved, onto the dishes.