| 摘要 |
Dishwashers and methods of control for operation of dishwashers are disclosed. The dishwasher may include an upper rack in an upper portion of a washing compartment configured to receive small dishes, such as a cup having a small washing load, and a lower rack in a lower portion of the washing compartment for placing large dishes, such as a dinner bowl having a large washing load. The operation of the dishwasher can include wash and rinse cycles having a plurality of sub-cycles. During the sub-cycles, the upper and lower racks can be selectively sprayed with water and steam can be supplied to the washing compartment based on configured conditions, such as a water temperature or operation time being reached. The operation of the dishwasher can reduce excessive washing of dishes having small washing loads and reduce power consumption of the dishwasher. |
| 主权项 |
1. A controlling method of a dishwasher comprising a washing compartment, a sump configured to contain water, a steam generator configured to supply steam to the washing compartment, a sump heater configured to heat the water in the sump, an upper rack holding dishes with a smaller washing load and a lower rack holding dishes with a larger washing load, an upper and a lower spraying arm configured to spray washing water toward the upper rack and the lower rack, respectively, the method comprising:
performing a washing cycle comprising:
supplying steam to the washing compartment, andspraying water to the upper rack and the lower rack alternately by using the upper spraying arm and the lower spraying arm, each spraying arm spraying water at a different water pressure and thereby rotating at a different speed, the supplying steam and the spraying water being repeated alternately for a preset period; and rinsing by spraying water toward the upper rack and the lower rack alternately, wherein the performing of the washing cycle further comprises spraying the water by only using the lower spraying arm to additionally and intensively wash an area having a larger washing load if the washing cycle reaches a preset first condition with the sump heater being on, wherein the rinsing is performed in a state of the sump heater being on, and the rinsing comprises spraying the water by using only the lower spraying arm if a preset second condition is reached during the rinsing, wherein the preset first condition is a first temperature of the water contained in the sump and the preset second condition is a second temperature of the water contained in the sump lower than the first temperature, wherein the steam generator is turned on and the sump heater is turned off during the supplying steam, and wherein the spraying the water by only using the lower spraying arm is repeated for a preset time period during which the upper spraying arm does not spray washing water. |
