An appliance and method for operating an appliance is provided. The appliance includes a pump configured to flow a volume of fluid, a flow nozzle configured to eject the fluid provided from the pump, and a motor configured to selectively operate the pump to flow the fluid through the flow nozzle. The method includes acquiring a dataset including a function of current magnitude and time corresponding to operation of a pump to flow a volume of fluid; determining an average current magnitude based at least on the dataset; determining a standard deviation based at least on the average current magnitude; comparing the standard deviation to a threshold to determine whether to transmit a control command based.

A control method for layered washing in a dishwasher and a dishwasher itself, which includes: S101: determining a rack that holds items to be washed; S102: determining a first spray water path corresponding to the rack that holds the items to be washed; S103: controlling a water divider piece to rotate to a position that opens the first spray water path, thereby connecting the first spray water path to a water supply device and closing other spray water paths; S104: performing a pre-washing step, so that the spray water path sprays towards the rack holding the items to be washed. The method first determines the rack holding the items to be washed, and then determines the first spray water path of the rack, so that the first spray water path is connected to the sink, and other spray water paths are blocked from the sink.

A dishwasher comprises a tub; a sump in which water supplied to the tub is accommodated; and a water tank disposed at one side of the tub. The water tank comprises a water storage part; a water supply channel that is connected to the sump and supplies water to the water storage part; an inlet which is provided at the top of the water storage part and through which water supplied via the water supply channel is introduced into the water storage part; an excessive supply water return channel which communicates at a first end thereof with the inlet and communicates at a second end thereof with the tub; and a floating cap which is provided under the inlet in the water storage part to selectively block the inlet according to the amount of water accommodated in the water storage part, wherein when the water storage is full of water, the floating cap blocks the inlet to disconnect the water storage part from the excessive supply water return channel.

A home appliance includes: a main body including an accommodation space therein; an inlet duct configured to guide a flow of air including water vapor from the accommodation space; a thermoelectric device including: a cooling portion configured to cool the flow of air guided by the inlet duct and thereby remove at least a portion of the water vapor from the clow of air as condensate, and a heating portion configured to heat the flow of air that is cooled by the cooling portion; an outlet duct configured to guide the flow of air heated by the heating portion to the accommodation space; a storage portion configured to collect the condensate removed from the flow of air by the cooling portion; and a pump configured to discharge the condensate collected in the storage portion from the storage portion.