A washing machine appliance includes a sump for collecting wash fluid, a water supply valve for supplying the wash fluid during a fill cycle, and a water level detection system including a pressure sensor for measuring sump pressures/fill levels. A controller is configured for operating the supply valve to fill the sump until a target volume is reached and obtaining a fill volume using the water level detection system. The controller determines that a fault condition exists based on a difference between the target volume and the fill volume, e.g., such as when the difference exceeds a predetermined fault threshold, and initiates a fault abatement process in response to determining that the fault condition exists.

A laundry treating appliance for treating laundry according to an automatic cycle of operation includes a cabinet defining a cabinet interior. A drum is rotatable within the cabinet interior, and at least partially defines a treating chamber. The treating chamber has a treating chamber air inlet and a treating chamber air outlet. A drying air circuit is fluidly coupled to the treating chamber air inlet and to the treating chamber air outlet. The laundry treating appliance can include first and second air temperature sensors, at least a first humidity sensor, and a controller operably coupled with the sensors.

Detection of airflow conditions, such as blockage issues, in a dryer laundry appliance is provided. A current or instant calibration is performed utilizing an airflow model to infer, based on current or instant sensor data from sensors of the dryer laundry appliance, an estimated airflow for an exhaust air conduit of the dryer laundry appliance. The estimated airflow is compared to a baseline airflow previously inferred by the airflow model during a baseline calibration using previous sensor data from the sensors of the dryer laundry appliance. An alert is provided responsive to the estimated airflow being below a threshold level relative to the baseline airflow.

A method of operating a dryer appliance includes activating a heating system of the dryer appliance and tracking an energy output of the heating system. The method also includes determining a load score of a load of articles to be dried in the dryer appliance based on the tracked energy output and determining a termination criterion for a dry operation of the dryer appliance based on the load score. The method further includes performing the dry operation in the dryer appliance and terminating the dry operation when the determined termination criterion is reached.

A laundry dryer includes a cabinet, a user interface that is operably coupled to the cabinet, a motor that is disposed within the cabinet and communicatively coupled with the user interface, and a controller that is communicatively coupled with the user interface and the motor, respectively. The controller includes a memory storage that includes a plurality of night routines. The controller is configured with a selectable time point and is further configured to select at least one of the plurality of night routines at the selectable time point.

A method and system for setting parameters of a treatment cycle in a household appliance is provided. First a model establishing a relationship between sets of configuration parameter values of achievable treatment performance is obtained. Then a target treatment performance for the treatment cycle is obtained. Values for a subset of a configuration parameter are fixed, the subset comprising at most all configuration parameters but a remaining configuration parameter. Then, a value for the remaining configuration parameter is determined. For this value, a difference between the target treatment performance and an achievable treatment performance predicted by the model using said value is below a predetermined threshold. Finally, the parameters of the treatment cycle, which can be setting parameters of the treatment cycle in the household appliance are output. The parameters comprise the determined value and the fixed values.

In order to increase an adsorption rate of softener for laundry, a method of controlling a washing machine according to an embodiment includes performing a first rinsing process based on a first target water level and a first duty ratio of a motor; when a second rinsing process is started, supplying water to an intermediate water level of a fixed tub; additionally supplying water to a second target water level together with the softener; setting a duty ratio of the motor to a second duty ratio higher than the first duty ratio; and driving the motor based on the second duty ratio.

A dryer appliance including a drum defining a chamber for receiving clothes, a moisture sensor for detecting a remaining moisture content within the clothes, and a water supply in fluid communication with the chamber is provided. A controller determines that the remaining moisture content has dropped below a predetermined moisture content and calculates a remaining cycle time based at least in part on a selected dryness level. The controller further determines a spray schedule based on at least one of a load size, a flow restriction, or a selected heat level, and provides a spray of water into the chamber according to the spray schedule until the remaining cycle time has lapsed.

A washing machine in which a first main heater is not driven while wash water stored in a first tub and wash water stored in a second tub are simultaneously heated, and a method of controlling the same. A washing machine includes: a first tub configured to store wash water; a first main heater configured to heat wash water stored in the first tub; a first sub heater configured to heat wash water stored in the first tub; a second tub configured to store wash water; and a second heater configured to heat wash water stored in the second tub, wherein a power consumption required to drive the first main heater is greater than a power consumption required to drive the first sub heater, and the first main heater is not driven while wash water stored in the first tube and wash water stored in the second tub are simultaneously heated.

A method of operating a washing machine appliance is provided. The washing machine appliance includes a rotatable basket and a motor configured to drive the rotatable basket. The method includes sensing an attribute of articles in the basket. The method also includes determining a pause duration for an agitation operation based at least in part on the sensed attribute of the articles in the basket. The method further includes performing the agitation operation for a period of time. The agitation operation includes activating a motor of the washing machine appliance to agitate the articles within the basket for an agitation duration and deactivating the motor of the washing machine appliance for the pause duration. The period of time is equal to the sum of the agitation duration and the pause duration.