A washing appliance is provided, including a tub configured to house items to be washed; an inlet valve configured to be operated in an open condition for causing washing fluid to be loaded into the tub and in a closed condition for preventing washing fluid to be fed to the appliance; a circulation pump configured to circulate the washing fluid in the tub during a washing cycle; a control unit configured to determine an operative state of the circulation pump between a saturation state indicative that sufficient washing fluid is present in the tub to prevent air from being drawn out by the circulation pump, and a starvation state indicative that insufficient washing fluid is present in the tub to prevent air from being drawn out by the circulation pump. The control unit is further configured to receive an indication of a target speed for the circulation pump based on a user-selected washing cycle and/or on a phase of the user-selected washing cycle; control the current speed of the circulation pump based on the target speed, the inlet valve condition, the operative state of the circulation pump; operate the inlet valve based on: the target speed, the current speed of the circulation pump, and the operative state of the circulation pump.

A dishwasher includes a dishwasher interior for washing items to be washed with washing liquor. Arranged at a lower end of the dishwasher interior is a pump sump for collecting the washing liquor, and a sensor is arranged in the pump sump for outputting a sensor signal as a function of a presence of washing liquor at the sensor. A control apparatus configured to carry out a washing program selected from a number of washing programs is designed to determine a malfunction of a component of a hydraulic assembly as a function of the sensor signal and of a current operating state of the dishwasher.

A hydraulic system for a household appliance which includes a pump that is driven by an electric motor, an outlet conduit in fluid communication with an outlet of the pump, a magnetic check valve having a flap and a control unit. The control unit is configured to control the speed of the electric motor in a closed loop and to determine whether the flap of the check valve is in an open position or in a closed position based on the torque of the electric motor estimated from the current consumption of the electric motor and/or the voltage in the terminals of the electric motor.

A control method for a water diversion device, a water diversion device and a dishwasher. The control method for a water diversion device includes: acquiring a target state position to be reached by a water diversion piece; acquiring the current state position of the water diversion piece; controlling a driving component to operate, and counting the number of signals actually received; on the basis of the target state position, the current state position and the number of signals actually received, determining whether the water diversion piece has reached the target state position; and when the water diversion piece has reached the target state position, controlling the driving component to stop rotating.