Abstract: Methods of operating a dishwashing appliance are provided herein. A method may include measuring a temperature at a temperature sensor and identifying a runaway heat condition within a wash chamber based on the measured temperature. The method may also include directing a volume of water to the wash chamber in response to identifying the runaway heat condition and circulating the volume of water within the wash chamber for a recirculation period.

Abstract: A flood detection sensor for a dishwasher appliance is provided. The flood detection sensor includes features that allow for detection of flood events or tub overfills without sacrificing performance or efficiency of the dishwasher during normal operating conditions and for secure mounting to a tub lip of the dishwasher.

Abstract: A dishwasher appliance includes a drain basin defined at a bottom of a sump of the dishwasher. The drain basin defines a discharge port and a drain pump is in fluid communication with the discharge port for selectively urging a flow of wash fluid through the discharge port to an external drain during a drain cycle. A check valve assembly includes a check valve removably positioned over the discharge port between the drain pump and the drain basin and a positioning arm attached to the check valve for positioning and locking the check valve in place.

Abstract: A fluid circulation assembly for a dishwasher appliance includes a pump, a diverter, and a valve. The diverter includes an inlet and a plurality of outlet ports. The inlet of the diverter is in fluid communication with the pump for receiving fluid from the pump. The valve is in fluid communication with the diverter via one or more of the plurality of outlet ports. The valve includes a housing, a dual check valve assembly mounted in the housing and a plurality of conduits. The dual check valve assembly selectively directs fluid from the diverter to one or more of the plurality of conduits.

Abstract: A dishwasher appliance that includes features for prevention and detection of flood events and leaks without sacrificing performance or efficiency of the dishwasher appliance is provided. Moreover, methods for detecting and preventing such flood events and leaks are also provided.

Abstract: A dishwashing appliance includes a tub defining a wash chamber. An inlet is defined in the tub and provides air flow into the wash chamber. A fan selectively urges air through the inlet in at least two different directions, including a first direction and a second direction. A diverter disk is proximate the inlet downstream of the fan and upstream of the wash chamber. The diverter disk defines an axial direction. The diverter disk is movable along the axial direction between a first position and a second position. The fan urges the diverter disk to move from the second position to the first position when the fan urges air through the inlet in the first direction, and the fan urges the diverter disk to move from the first position to the second position when the fan urges air through the inlet in the second direction.

Abstract: A dishwasher appliance and viewable cleaning agent assembly are disclosed herein. The dispensing assembly may include an internal wall, a front cover, a light guide, and a light source. The internal wall may define a storage volume for the receipt of a wash fluid therein. The front cover may selectively cover the storage volume to restrict access thereto. The front cover may be positioned between the storage volume and the wash chamber when the door is in the closed position. The light guide may extend along an axial direction from a forward display surface in front of the storage volume to a rearward contact surface within the storage volume. The light source may be directed through the internal wall toward the rearward contact surface within the storage volume.

Abstract: A dishwashing appliance includes a tub defining a wash chamber. An inlet is defined in the tub and provides air flow into the wash chamber. A diverter disk is proximate the inlet and upstream of the wash chamber. The diverter disk is rotatable between a first position and a second position. The diverter disk permits air flow into the wash chamber via the inlet in a first direction when the diverter disk is in the first position and in a second direction when the diverter disk is in the second position.

Abstract: A dishwasher appliance equipped with flood protection features that proactively attempt to prevent, stop, and/or mitigate flood events is provided. The dishwasher appliance may also include features for determining the cause of the flood event. Moreover, methods for flood protection of the dishwasher appliance are also provided.

Abstract: A dishwasher appliance includes a spray nozzle having a housing defining a spray chamber in fluid communication with a fluid circulation assembly. A diversion element is positioned within the spray chamber and is movable between a lowered position and a raised position where it contacts a discharge orifice. The diversion element defines a plurality of flow paths that are randomly oriented relative to the discharge orifice every time the diversion element is moved into the raised position, such as when the fluid circulation assembly cycles off and then on again.

Abstract: A dishwasher appliance includes a drain basin defined at a bottom of a sump of the dishwasher. The drain basin defines a discharge port and a drain pump is in fluid communication with the discharge port for selectively urging a flow of wash fluid through the discharge port to an external drain during a drain cycle. A check valve assembly includes a check valve removably positioned over the discharge port between the drain pump and the drain basin and a positioning arm attached to the check valve for positioning and locking the check valve in place.

Abstract: A dishwasher appliance having a diverter integrated with a sump of the dishwasher appliance is provided. Features of the diverter integrated with the sump provide for more efficient development of, tooling for, and manufacture of the dishwasher appliance. Further, features of the diverter integrated with the sump may reduce leakage between the sump and the diverter and may also reduce part count of the dishwasher appliance.

Abstract: A dishwasher appliance includes a circulation pump, a pressure sensor upstream of the circulation pump, and a diverter downstream of the circulation pump. A method of circulating fluid includes operating the circulation pump at a first speed less than a target speed for a first amount of time. The method also includes determining a first minimum pressure value based on the first speed and a position of the diverter and monitoring a pressure upstream of the circulation pump with the pressure sensor. The method further includes operating the circulation pump at a second speed greater than the first speed when the monitored pressure continuously exceeds the first minimum pressure value for a second amount of time and determining a second minimum pressure value based on the second speed and the position of the diverter after operating the circulation pump at the second speed for a third amount of time.

Abstract: A dishwasher appliance that includes features for prevention and detection of flood events and leaks without sacrificing performance or efficiency of the dishwasher appliance is provided. Moreover, methods for detecting and preventing such flood events and leaks are also provided.

Abstract: A dishwasher appliance that includes features that allow for prevention and detection of flood events or tub overfills without sacrificing performance or efficiency of the dishwasher appliance is provided. Moreover, methods for detecting and preventing such flood events are also provided.

Abstract: A dishwasher appliance that includes features for prevention and detection of flood events or tub overfills without sacrificing performance or efficiency of the dishwasher appliance is provided. Moreover, methods for detecting and preventing such flood events are also provided.

Abstract: A flood detection sensor for a dishwasher appliance is provided. The flood detection sensor includes features that allow for detection of flood events or tub overfills without sacrificing performance or efficiency of the dishwasher during normal operating conditions and for secure mounting to a tub lip of the dishwasher.

Abstract: A turbidity sensor assembly for a dishwasher appliance is provided. The turbidity sensor assembly measures the turbidity of wash fluid in a manner similar to conventional turbidity sensors, but also includes an integral water level indicator. The water level indicator is an opaque buoyant ball that rises and falls with the water level to provide a water level indication that can be used to shut off the drain pump when the sump is empty. More specifically, when the water level drops below a predetermined level, the opaque ball blocks the transmission of light between the emitter and receiver of the turbidity sensor, thus indicating that the sump is almost empty. As a result, the pump operating during a drain cycle need only operate long enough to drain the sump, and this may be achieved without an additional measuring device or complicated control system.

Abstract: A turbidity sensor assembly for a dishwasher appliance is provided. The turbidity sensor assembly measures the turbidity of wash fluid in a manner similar to conventional turbidity sensors, but also includes an integral water level indicator. The water level indicator is an opaque buoyant ball that rises and falls with the water level to provide a water level indication that can be used to shut off the drain pump when the sump is empty. More specifically, when the water level drops below a predetermined level, the opaque ball blocks the transmission of light between the emitter and receiver of the turbidity sensor, thus indicating that the sump is almost empty. As a result, the pump operating during a drain cycle need only operate long enough to drain the sump, and this may be achieved without an additional measuring device or complicated control system.

Abstract: A detergent dispenser module for a dishwashing appliance may generally include a body extending between a top side and a bottom side. The body may include an outer surface extending from the top side and may define a detergent chamber between the outer surface and the bottom side. The detergent chamber may be at least partially formed by an upper sidewall, a lower sidewall and a bottom wall extending between the upper and lower sidewall. In addition, the dispenser module may also include at least one flow diverter extending outwardly from the outer surface at a location adjacent to the upper sidewall of the detergent chamber. The flow diverter(s) may be angled in a direction of a fluid collection opening defined through a top of the upper sidewall such that fluid flowing downwardly along the outer surface of the body is directed into the fluid collection opening.