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.

A washing machine appliance includes a sump for collecting wash fluid, a water supply valve for supplying wash fluid during a fill cycle, and a drain pump assembly for draining that wash fluid during a drain cycle. A controller is configured for monitoring the sump pressure using a water level detection system, detecting a fill sensing failure such as a slow pressure rise after the fill cycle, detecting a drain sensing failure such as a slow pressure drop during the drain cycle, and determining that the water level detection system is malfunctioning if the fill sensing failure and the drain sensing failure are detected.

A washing machine overflow prevention device for preventing flooding includes a plug-port assembly that comprises a plug, a port, and a breaker. The plug is configured to insert into an outlet that is coupled to an electrical circuit of a building. The port is configured to insert a power cord plug of a washing machine to power the washing machine, and the breaker is positioned to operationally couple the plug to the port. A switching sensor is coupled to and positioned in a standpipe. The switching sensor is operationally coupled to the plug and the breaker. The switching sensor is configured to detect a water level in the standpipe and to selectively actuate the breaker to decouple the port from the plug in event of a high-water level in the standpipe to prevent flooding of an area proximate to the washing machine.

A method of monitoring drainage of a washing appliance such as a dishwasher or washing machine having a pump for draining a washing chamber is disclosed. The method includes receiving a time series of power consumption data relating to the operation of the washing appliance over a monitored period of operation including pumped draining of the washing chamber. A measure of the duration of a portion of the monitored period comprising said pumped draining is derived from the time series of power consumption data. The measure of duration is then compared to a reference value and an indicator of a drainage condition is determined based on the comparison. The method may be used to detect scaling or blockages in drainage flow paths.

A method for operating a laundry treatment machine having a container for housing a laundry load to be treated and a pump. The pump has an electric motor adapted to be powered by a motor voltage (VMOT) and a motor current (IMOT). An air-water working condition of the pump is detected/evaluated based on values of the motor voltage (VMOT) and/or the motor current (IMOT) of the electric motor.

Examples are disclosed that relate to a coupling arrangement (36) for a domestic appliance (2), comprising: a connection piece (16) that has a channel (5) for transporting a fluid on its inner side, and a shoulder (18) on its outer side; an elastic bushing (19) that is pushed onto the connection piece (16) in an assembly direction (M), the bushing (19) having, on its inner side, a first shoulder (21) which engages behind the shoulder (18) of the connection piece (16), and a second shoulder (22) on its outer side; and a corrugated hose (26) that comprises, on an end section (28) thereof and on its inner side, a shoulder (35) which engages behind the second shoulder (22) of the bushing (19).

A dryer, particularly for drying clean-room garments and accessories, includes a dryer body, a drying chamber, and a system for circulating air between an air intake and the drying chamber. The system includes an air aspiration device giving a direction of air flow from the air intake towards the drying chamber, a device for heating the aspirated air placed upstream of said drying chamber, and an absolute filter provided upstream of the drying chamber. The dryer further includes, upstream of the absolute filter, a connector arranged so as to be connected to a device for supplying air charged with a predetermined quantity of droplets of an aerosol, and in that it has an access to a space located downstream of the absolute filter and upstream of the drying chamber, the access to a space being arranged so as to be able to receive a measuring device.

A washing machine overflow prevention device for preventing flooding includes a plug-port assembly that comprises a plug, a port, and a breaker. The plug is configured to insert into an outlet that is coupled to an electrical circuit of a building. The port is configured to insert a power cord plug of a washing machine to power the washing machine, and the breaker is positioned to operationally couple the plug to the port. A switching sensor is coupled to and positioned in a standpipe. The switching sensor is operationally coupled to the plug and the breaker. The switching sensor is configured to detect a water level in the standpipe and to selectively actuate the breaker to decouple the port from the plug in event of a high-water level in the standpipe to prevent flooding of an area proximate to the washing machine.

A washing machine appliance is provided including a sump positioned at a bottom of a wash tub for collecting wash fluid, a drain pump assembly for selectively draining the sump, a measurement device configured for measuring movement of the wash tub, and a water level detection system comprising a pressure sensor fluidly coupled to the sump. A controller is configured to operate the drain pump assembly to drain the wash fluid, measure the movement of the wash tub using the measurement device, measure a water level within the sump using the water level detection system, and identify a fault condition in the water level detection system upon determining that the measured movement indicates that the sump is empty and the measured water level indicates that the sump is not empty.

A washing machine appliance, a controller, and a method for operating a washing machine appliance are provided. The appliance includes a controller operably coupled to a motor assembly that is operably coupled to a wash basket, and a drain pump assembly. The controller is configured to rotate the wash basket to at least a desired speed; determine one or more of whether at least the desired speed of the wash basket is achieved within a period of time, or whether an energy parameter threshold of a motor assembly is exceeded when rotating the wash basket within the period of time; and generate an output signal corresponding to fluid detection at a wash tub when the wash basket fails to rotate to at least the desired speed within the period of time or, when the energy parameter threshold is exceeded when rotating the wash basket within the period of time.