Abstract: A washer appliance includes an impeller and impeller interface. An agitator post is removably positioned upon the impeller interface. A plurality of latches are supported by the agitator post and spaced apart circumferentially. Each latch may be configured for pivoting in and out of one of a plurality of latch recesses provided by the impeller interface when the agitator post is positioned on the impeller interface. Biasing members urge the latch into the latch recesses when the agitator post is positioned on the impeller interface.

Abstract: A washing appliance including a removable agitator post having a recess configured for complementary receipt of an impeller interface. A plurality of apertures can be spaced around a bottom end of the agitator post. A plurality of alignment pins may extend from the impeller interface and into the plurality of apertures. The alignment pins can be movable in and out of the apertures so that the agitator post can be secured to, or released from, the impeller interface.

Abstract: A washer appliance includes an impeller and impeller interface. An agitator post is removably positioned upon the impeller interface. A plurality of latches are supported by the agitator post and spaced apart circumferentially. Each latch may be configured for pivoting in and out of one of a plurality of latch recesses provided by the impeller interface when the agitator post is positioned on the impeller interface. Biasing members urge the latch into the latch recesses when the agitator post is positioned on the impeller interface.

Abstract: A washing appliance including a removable agitator post having a recess configured for complementary receipt of an impeller interface. A plurality of apertures can be spaced around a bottom end of the agitator post. A plurality of alignment pins may extend from the impeller interface and into the plurality of apertures. The alignment pins can be movable in and out of the apertures so that the agitator post can be secured to, or released from, the impeller interface.

Abstract: A dryer appliance and a method of operating the same to detect blockages are provided. The dryer appliance includes an exhaust conduit that defines a flow restriction and is in fluid communication with a drying chamber. A differential pressure sensor is operably coupled to the exhaust conduit at the flow restriction and a controller is configured for using a measured pressure differential to obtain an air flow rate and determine whether a blockage is present in the exhaust conduit, e.g., by comparing the measured flow rate to a baseline, zero-blockage flow rate.

Abstract: A dryer appliance and a method of operating the same to detect blockages are provided. The dryer appliance includes an exhaust conduit that defines a flow restriction and is in fluid communication with a drying chamber. A differential pressure sensor is operably coupled to the exhaust conduit at the flow restriction and a controller is configured for using a measured pressure differential to obtain an air flow rate and determine whether a blockage is present in the exhaust conduit, e.g., by comparing the measured flow rate to a baseline, zero-blockage flow rate.

Abstract: A heat pump water heater and systems and methods for its control. The systems are configured to heat water within a water storage tank of a heat pump water heater wherein a controller within the system is operatively connected to a plurality of heat sources including at least one electric heating element and a heat pump and sensors in order to selectively energize one of the plurality of heat sources. The controller is configure to process data representative of the temperature of water within the tank near the top of the water storage tank, and rate of water flowing out of the water storage tank, in order to automatically selectively energize the heat sources. The selection of heat sources by the controller is determined by a mode of operation selected by the user and the data processed by the controller in view of the selected mode of operation.

Abstract: A heat pump water heater and systems and methods for its control are disclosed. The systems are configured to heat water within a water storage tank of a heat pump water heater wherein a controller within the system is operatively connected to a plurality of heat sources including at least one electric heating element and a heat pump and sensors in order to selectively energize one of the plurality of heat sources. The controller is configure to process data representative of the temperature of water within the tank near the top of the water storage tank, and rate of water flowing out of the water storage tank, in order to automatically selectively energize the heat sources. The selection of heat sources by the controller is determined by a mode of operation selected by the user and the data processed by the controller in view of the selected mode of operation.

Abstract: A heat pump water heater and systems and methods for its control. The systems are configured to heat water within a water storage tank of a heat pump water heater wherein a controller within the system is operatively connected to a plurality of heat sources including at least one electric heating element and a heat pump and sensors in order to selectively energize one of the plurality of heat sources. The controller is configure to process data representative of the temperature of water within the tank near the top of the water storage tank, and rate of water flowing out of the water storage tank, in order to automatically selectively energize the heat sources. The selection of heat sources by the controller is determined by a mode of operation selected by the user and the data processed by the controller in view of the selected mode of operation.

Abstract: Systems and methods for controlling a heat pump water heater (HPWH) are disclosed. The systems include an interface for accepting a user input and configured to indicate a mode of operation, and indicate at least one error condition when an error condition exists. The systems are operative to diagnose various failure conditions and as advise a user that maintenance may be needed and to adjust operation for varying environmental or other external conditions.

Abstract: A heat pump water heater and systems and methods for its control are disclosed. The systems are configured to heat water within a water storage tank of a heat pump water heater wherein a controller within the system is operatively connected to a plurality of heat sources including at least one electric heating element and a heat pump and sensors in order to selectively energize one of the plurality of heat sources. The controller is configure to process data representative of the temperature of water within the tank near the top of the water storage tank, and rate of water flowing out of the water storage tank, in order to automatically selectively energize the heat sources. The selection of heat sources by the controller is determined by a mode of operation selected by the user and the data processed by the controller in view of the selected mode of operation.

Abstract: A cooktop comprising at least one cooktop heater and a controller coupled to the heater and operable to control operation of the heater, including cool down of the heater and drift detection, is described. In one embodiment, the cooktop further comprises a control interface coupled to the controller. The interface comprises a power setting selection unit for operator selection of a power level setting for the heater. The controller is configured to switch off supply of power to the heater if a second power level selection for the heater is a lower power level than a first power level selection, and to then resume standard heater operation once a temperature corresponding to the second power level selection is reached.

Abstract: A cooktop comprising at least one cooktop heater and a controller coupled to the heater and operable to control operation of the heater, including cool down of the heater and drift detection, is described. In one embodiment, the cooktop further comprises a control interface coupled to the controller. The interface comprises a power setting selection unit for operator selection of a power level setting for the heater. The controller is configured to switch off supply of power to the heater if a second power level selection for the heater is a lower power level than a first power level selection, and to then resume standard heater operation once a temperature corresponding to the second power level selection is reached.