Dishwasher and controlling method thereof

Abstract

Disclosed a controlling method of a dishwasher comprising a water supply step for supplying wash water, a preliminary washing step for injecting the wash water to one or more dishes, a main washing step for injecting the wash water mixed with washing liquid to the dishes, a rinsing step for injecting the wash water to the dishes, and a heating step for heating the wash water in one or more of the preliminary washing step, the main washing step and he rinsing step, wherein a heater sensing step for determining an operational state of a heater heating the wash water is performed in the heating step in a state where the circulation of wash water is stopped.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to Korean Patent Application No. 10-2016-0001170 filed on Jan. 5, 2016 in Korea, the entire contents of which is hereby incorporated by reference in its entirety.BACKGROUND OF THE DISCLOSUREField of the Disclosure[0002]Embodiments of the present disclosure relate to a dishwasher, more particularly, to a dishwasher which uses night-time electricity in performing a drying process which is the next step of the washing process, and a controlling method thereof.Background of the Disclosure[0003]Generally, a dishwasher is the mechanism configured to wash and dry one or more dishes held therein by injecting wash water to the dishes at a high pressure. Specifically, wash water is injected in a washing tub where dishes are held at a high pressure and the injected wash water washes and clean out food scraps or contaminants from surfaces of dishes.[0004]Such a dishwasher is capable of filtering the food scraps contai...

AI Technical Summary

Benefits of technology

[0030]The embodiments have following advantageous effects. The dishwasher is capable of keeping a dried condition of dishes, even if a user leaves the dishes in the dishwasher after a drying process after a washing process, and a controlling method thereof.

[0031]Furthermore, the dishwasher is capable of performing a drying process for drying the dishes after a washing process at late nights when the dishwasher is not used, and a controlling method thereof.

[0032]Still further, the dishwasher is capable of performing the drying process for drying the dishes after a washing process, using the night-time electricity which is relatively cheap, and a controlling method thereof.

Problems solved by technology

However, the circulation type drying method out of the conventional controlling methods according to the related art has a disadvantage of a lower drying efficiency than the exhaustion type drying method in an aspect of drying efficiency.

Meanwhile, the exhaustion type drying method out of the conventional controlling methods according to the related art also has a disadvantage of high energy consumption, even though it is proper to the dishwasher as the drying method.

In addition, users usually collect and put a relatively much amount of dishes in the dishwasher.

In this instance, such a much amount of dishes are put in the dishwasher and the conventional dishwasher has a disadvantageously deteriorated drying condition for the dishes having being washed and dried / kept therein.

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