A fluid flow system for a laundry appliance includes a blower that delivers process air along an airflow path having a heat exchanger. A drain channel receives condensate from the heat exchanger and fluid spray from a spray nozzle for directing lint particles to the drain channel and on to a sump for collecting fluid, including the condensate. A pump seat and a fluid outlet are integrally formed in a sump cover. A pump directs the fluid from the sump to the fluid outlet. A fluid level sensor detects at least minimum and maximum capacities of the fluid in the sump. When the fluid is below the minimum capacity, the pump defines an idle state. When the fluid reaches the minimum capacity, the pump defines an active state. When the fluid exceeds the maximum capacity, the pump directs the fluid to the fluid outlet.

A laundry treating apparatus may comprise a cabinet that defines an exterior design; a drum rotatably mounted in the cabinet and configured to accommodate laundry; a drive unit or motor configured to rotate the drum; a hot air supply unit or hot air blower configured to supply high-temperature air to the drum and in communication with the drum; a collection portion or liquid chamber provided to collect water condensed from the drum and in communication with the hot air supply unit; and a drainage pump configured to discharge the water collected in the collection portion outside the cabinet such that the laundry treating apparatus may sense whether the condensate collected in the collection portion is frozen and thaw the frozen condensate. A control method of the laundry treating apparatus may be provided to thaw and operate the laundry treating apparatus.

A fluid flow system for a laundry appliance includes a blower that delivers process air along an airflow path having a heat exchanger. A drain channel receives condensate from the heat exchanger and fluid spray from a spray nozzle for directing lint particles to the drain channel and on to a sump for collecting fluid, including the condensate. A pump seat and a fluid outlet are integrally formed in a sump cover. A pump directs the fluid from the sump to the fluid outlet. A fluid level sensor detects at least minimum and maximum capacities of the fluid in the sump. When the fluid is below the minimum capacity, the pump defines an idle state. When the fluid reaches the minimum capacity, the pump defines an active state. When the fluid exceeds the maximum capacity, the pump directs the fluid to the fluid outlet.

The present disclosure relates to a laundry treatment machine and a method for controlling the same. A pump motor may operate according to the steps of starting up the pump motor when operating or stopping the pump motor. Upon restarting, the pump motor may be controlled to start up after being on standby until the rotor stops, and therefore the pump may run normally even in case in which the pump repeatedly stops and runs, and the drainage performance may be improved and wash water may be drained by the operation of the pump regardless of the lift level.

The present disclosure relates to a drain pump driving apparatus and a laundry treatment machine including the same. A drain pump driving apparatus according to an embodiment of the present disclosure includes a controller configured to drive a motor, during drainage, based on an output current and a direct current (DC) terminal voltage with a first power when a lift is at a first level and to drive the motor with the first power when the lift is at a second level that is greater than the first level, wherein the lift is a difference between a water level of a water introduction part through which water flows into a drain pump and a water level of a water discharge part through which the water is discharged out of the drain pump. Accordingly, water pumping can be performed smoothly even if the lift is changed during the drainage.

The present disclosure relates to a laundry treatment machine. According to an embodiment of the present disclosure, a laundry treatment machine includes a controller controlling a motor, during dewatering, to be driven at a first speed when a lift is at a first level and to drive the motor at a second speed greater than the first speed when the lift is at a second level greater than the first level, wherein the lift is a difference between a water level of a water introduction part through which water flows into a drain pump and a water level of a water discharge part through which the water is discharged out of the drain pump. Accordingly, noise or vibration can be reduced even if the lift is changed during the dewatering.

The present disclosure relates to a laundry treatment apparatus and a control method thereof. The laundry treatment apparatus includes a tub providing a space in which washing water is stored, a drum, a drain pump, a control unit controlling water supply and drain and determining a drain state, and a pump control unit changing and controlling an operation speed of the drain pump depending on the drain state and is configured to drain the washing water by repeating a process of decreasing and then increasing a speed of the drain pump depending on a speed set by the pump control unit, such that the wash water does not remain and may be effectively drained, and noise generated due to a flow of residual water and an operation of the drain pump may be eliminated.

A laundry appliance includes a compartment defined within a cabinet. A cartridge is selectively received within the compartment. The cartridge includes a self-actuating pump for dispensing a consumable from an interior of the cartridge. A mixing chamber is positioned under the self-actuating pump. The mixing chamber receives a dispensed portion of the consumable. A fluid dispenser dispenses a base fluid into the mixing chamber. The fluid dispenser is upstream of the self-actuating pump and the base fluid carries the dispensed portion to a processing chamber contained within the cabinet.

The present disclosure relates to a laundry treatment apparatus and a control method thereof. The laundry treatment apparatus includes a tub providing a space in which washing water is stored, a drum, a drain pump, a control unit controlling water supply and drain and determining a drain state, and a pump control unit changing and controlling an operation speed of the drain pump depending on the drain state and is configured to drain the washing water by repeating a process of decreasing and then increasing a speed of the drain pump depending on a speed set by the pump control unit, such that the wash water does not remain and may be effectively drained, and noise generated due to a flow of residual water and an operation of the drain pump may be eliminated.

The laundry treating device has a user interface configured to receive a user selection of a preprogrammed wash cycle. A treating chemistry dispenser has multiple treating chemistry cups configured to dispense treating chemistry to the treating chamber during the selected washing cycle. A controller configured to activate dispensing from each of the treating chemistry cups at preprogrammed times during the wash cycle. A performance enhancement selector configured to receive a user selection such that activation of the performance enhancement selector causes the controller to dispense one of the treating chemistry cups at a different time than the preprogrammed time during the wash cycle.