Abstract: Disclosed herein are a dish washer which is capable of finishing a rinse mode within a predetermined time by changing an operation start time of a heater according to the temperature of washing water at the time of a final rinse mode of the dish washer, and a method of controlling the same. The method of controlling the dish washer including a washing tub for containing dishes to be washed using washing water and a heater for heating the washing water includes sensing a temperature of the washing water, determining an operation start time of the heater on the basis of the sensed temperature of the washing water, and operating the heater according to the determined operation start time of the heater.

Abstract: A dish washing machine capable of improving spatial utilization of a washing tub through the enlargement of the washing tub. The dish washing machine includes a washing tub, a sump mounted in the washing tub to receive and pump wash water, a sump housing forming an external appearance of the sump, a washing impeller to pump wash water from the sump housing, a drainage channel disposed at an inner edge of the sump housing, a pump motor surrounded by the drainage pump to drive the washing impeller, and a pump motor receiving part to receive the pump motor. The pump motor receiving part protrudes above the drainage channel.

Abstract: A dish washing machine capable of improving spatial utilization of a washing tub through the enlargement of the washing tub. The dish washing machine includes a washing tub, a sump mounted in the washing tub to receive and pump wash water, a sump housing forming an external appearance of the sump, a washing impeller to pump wash water from the sump housing, a drainage channel disposed at an inner edge of the sump housing, a pump motor surrounded by the drainage pump to drive the washing impeller, and a pump motor receiving part to receive the pump motor. The pump motor receiving part protrudes above the drainage channel.

Abstract: A dish washing machine capable of smoothly discharging dirt contained in wash water out of a sump so as to prevent the emission of bad smells from the dirt and prevent the propagation of bacteria. The dish washing machine includes a sump to receive and pump wash water, a sump housing forming an external appearance of the sump, a drainage pump coupled with the sump housing to discharge wash water and dirt, and a drainage channel disposed in the sump housing to guide wash water and dirt to the drainage pump.

Abstract: Disclosed herein is a dish washing machine that is capable of preventing the unintentional drainage of some wash water by the increase of the water pressure in a sump due to the excessive accumulation of filth in the sump. The dish washing machine includes a washing tub, at least one injection nozzle disposed in the washing tub, a sump disposed in the washing tub to forward wash water to the at least one injection nozzle, a guide pipe connected between the sump and the at least one injection nozzle, and a bypass pipe, diverging from a portion of the guide pipe, connected to the sump to bypass the wash water in the sump to the guide pipe.

Abstract: A dish washing machine capable of smoothly discharging dirt contained in wash water out of a sump so as to prevent the emission of bad smells from the dirt and prevent the propagation of bacteria. The dish washing machine includes a sump to receive and pump wash water, a sump housing forming an external appearance of the sump, a drainage pump coupled with the sump housing to discharge wash water and dirt, and a drainage channel disposed in the sump housing to guide wash water and dirt to the drainage pump.

Abstract: A dish washing machine in which water is supplied to a level detecting unit without sudden change of a flow rate and pressure of water from a water supplying unit to the level detecting unit such that the level detecting unit can precisely detect a level of water in the tub. The water supplying unit includes a first guide passage guiding the water to the tub, and a second guide passage guiding the water to the level detecting unit such that a portion of the water is supplied to the level detecting unit through the second guide passage. The water supplying unit includes a buffering space disposed between the second guide passage and the level detecting unit such that water flows from the water supplying unit to the level detecting unit at a predetermined flow rate.

Abstract: Disclosed herein are a dish washer which is capable of finishing a rinse mode within a predetermined time by changing an operation start time of a heater according to the temperature of washing water at the time of a final rinse mode of the dish washer, and a method of controlling the same. The method of controlling the dish washer including a washing tub for containing dishes to be washed using washing water and a heater for heating the washing water includes sensing a temperature of the washing water, determining an operation start time of the heater on the basis of the sensed temperature of the washing water, and operating the heater according to the determined operation start time of the heater.

Abstract: Disclosed are a dish washer and a method of controlling the same, in which the amount of water consumed is reduced and a washing time is maintained while assuring a washing performance. The dish washer includes a washing tub; dish baskets provided in the washing tub to accommodate dishes; and a plurality of nozzles to spray washing water to the dish baskets, where spray holes to spray the washing water are formed through each of the plurality of nozzles, and the spray holes formed through the plurality of nozzles have areas different from one another.

Abstract: Disclosed herein is a dish washing machine that is capable of preventing the unintentional drainage of some wash water by the increase of the water pressure in a sump due to the excessive accumulation of filth in the sump. The dish washing machine includes a washing tub, at least one injection nozzle disposed in the washing tub, a sump disposed in the washing tub to forward wash water to the at least one injection nozzle, a guide pipe connected between the sump and the at least one injection nozzle, and a bypass pipe, diverging from a portion of the guide pipe, connected to the sump to bypass the wash water in the sump to the guide pipe.

Abstract: A washing control apparatus and method of a dish washing machine capable of determining a course selection in each operation through the detection of the turbidity of wash water at a preceding operation. The washing control method includes determining whether an automatic washing course has been selected according to a command of a user, when the automatic washing course has been selected, detecting a turbidity of wash water during washing, and selecting a course of a next operation based on the detected turbidity of the wash water.

Abstract: A washing control apparatus and method of a dish washing machine capable of detecting the turbidity of wash water during washing to determine a next washing operation. The washing control method includes detecting a turbidity of wash water while performing washing using the wash water, and determining a washing operation to be performed based on the detected turbidity of the wash water.

Abstract: A dish washing machine capable of controlling the amount of wash water used based on the quantity of dishes and preventing a drop of the injection pressure of the wash water. The dish washing machine includes a washing tub, main nozzles disposed in the washing tub to constantly inject wash water when washing dishes, a sub nozzle disposed in the washing tub to selectively inject wash water when washing dishes, a sump mounted in the wash tub, a main channel disposed in the sump, the main channel being connected with the main nozzles, a sub channel disposed in the sump while being separated from the main channel and connected to the sub nozzle, and a channel control valve disposed in the sub channel to intermit a flow of wash water flowing to the sub nozzle.

Abstract: A dish washing machine capable of improving spatial utilization of a washing tub through the enlargement of the washing tub. The dish washing machine includes a washing tub, a sump mounted in the washing tub to receive and pump wash water, a sump housing forming an external appearance of the sump, a washing impeller to pump wash water from the sump housing, a drainage channel disposed at an inner edge of the sump housing, a pump motor surrounded by the drainage pump to drive the washing impeller, and a pump motor receiving part to receive the pump motor. The pump motor receiving part protrudes above the drainage channel.

Abstract: A dish washing machine in which water is supplied to a level detecting unit without sudden change of a flow rate and pressure of water from a water supplying unit to the level detecting unit such that the level detecting unit can precisely detect a level of water in the tub. The water supplying unit includes a first guide passage guiding the water to the tub, and a second guide passage guiding the water to the level detecting unit such that a portion of the water is supplied to the level detecting unit through the second guide passage. The water supplying unit includes a buffering space disposed between the second guide passage and the level detecting unit such that water flows from the water supplying unit to the level detecting unit at a predetermined flow rate.

Abstract: A dish washing machine capable of smoothly discharging dirt contained in wash water out of a sump so as to prevent the emission of bad smells from the dirt and prevent the propagation of bacteria. The dish washing machine includes a sump to receive and pump wash water, a sump housing forming an external appearance of the sump, a drainage pump coupled with the sump housing to discharge wash water and dirt, and a drainage channel disposed in the sump housing to guide wash water and dirt to the drainage pump.

Abstract: A washing machine having a water softener, which converts hard water to soft water using hot water instead of salt water, thereby having low production costs and high efficiency and providing convenience to users. The washing machine includes the water softener for softening water supplied to the washing machine using a hard water component absorbent material, and a heater for heating the water supplied to the washing machine through the water softener, wherein the heated water is re-supplied to the water softener so as to regenerate the hard water component absorbent material of the water softener.