A method of operating a dishwasher appliance includes initiating a wash cycle of the dishwasher appliance. The wash cycle includes operating the dishwasher appliance in a wash mode for a first predetermined amount of time by positioning a diverter in a first position to direct a fluid flow to a spray assembly of the dishwasher appliance. The method also includes positioning the diverter in a second position to direct the fluid flow to a filter cleaning manifold for a second predetermined amount of time. The method further includes sensing the second position of the diverter with a position sensor. The method further includes performing a predetermined action after the second predetermined amount of time when the second position of the diverter is sensed before the first predetermined amount of time has elapsed.

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.

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.

A beverage container washing system may be used for rapid washing and/or sanitizing of beverage containers, e.g., for use in a retail environment to wash and/or sanitize customer-provided beverage containers prior to filling the beverage containers with purchased beverages, among other applications. Separate entrance and exit openings may be provided in some instances to minimize employee interaction with unwashed customer beverage containers. A spray assembly may be used to spray wash fluid heated to a sanitizing temperature onto beverage containers and an ultraviolet sanitizing assembly may be used to emit ultraviolet light toward beverage containers. The spray assembly may also include a tank with first and second chambers and a cross-over with an inverted conduit fluidly coupling the first and second chambers.

A method and apparatus for automated particulate extraction from solid parts is disclosed herein, which comprises a test tank (42) and a liquid cleaning medium (46) for washing a test part (48). The principle advantages offered by this invention include the ability to verify that the test tank (42) has met a required tank clean threshold (102) as specified by a percentage reduction of contaminants (78) through the use of a liquid quality sensor (76) which repeatedly measures the contamination level of a liquid cleaning medium (46) exiting the test tank (42). Type I and Type II sampling error are eliminated by verifying that the liquid cleaning medium (46) passing from the test tank (42) has measured contaminants (78) reaching both a maximum value (98) and then falling below a specified tank clean threshold (102) prior to ending the cleaning cycle.

A dishwasher has a treating chamber for receiving dishes for treatment according to an automatic cycle of operation and a dispensing system for storing and dispensing a treating chemistry to the treating chamber during the cycle of operation. The dishwasher may dispense a treating chemistry when a temperature of a liquid in the treating chamber satisfies a predetermined temperature threshold. The temperature of the liquid may be maintained to satisfy the predetermined temperature threshold for a predetermined period of time based on the treating chemistry.

Provided are a dish washing machine capable of effectively removing garbage which remains at the bottom of a washing tub and a filter and a method of controlling the same. When washing water is sprayed from a nozzle while a vane is positioned at a reference position during a drainage operation, since a deflection angle of the vane is bent back and the washing water is strongly sprayed toward a rear wall of a washing tub, the washing water may form a fast and strong water current over a bottom plate of the washing tub, and the fast and strong water current may remove garbage which remains at a filter while flowing over the bottom of the washing tub. Also, even when an excessive amount of garbage is accumulated at a filter at a top end of a sump and blocks the filter during a washing operation such as preliminary washing, main washing, etc., the filter is automatically washed using a small amount of water, thereby eliminating inconvenience of a user to directly separate and wash the filter. Also, washing performance may be effectively improved by precisely determining whether degradation in washing performance caused by a poor circulation of washing water occurs due to a filter blockage or generation of bubbles.

Provided herein are an appliance and method for washing and rinsing goods. The appliance may include a circulation pump, a sensing arrangement arranged to measure an indication of circulation pump pressure or process water flow rate through the circulation pump, and a controller arranged to control operating speed of the circulation pump. The controller may be further arranged to detect that the indicated circulation pump pressure or process water flow rate through the circulation pump is insufficient, and gradually reduce operating speed of the circulation pump until the circulation pump pressure or the process water flow rate through the circulation pump is at a sufficient operational level.

A method that allows the determination of at least one variable operational characteristic of a hydraulic system which includes a hydraulic fluid source a utilizing apparatus connected to the source through a conduit, and a flow-rate measuring device, positioned after the source for providing a signal indicative of the flow-rate of the liquid. The method includes the operations of providing in the hydraulic system an indicator device containing information indicative of the values taken by a predetermined parameter of the flow-rate measuring device as a function of the flow rate of the fluid; providing an acquisition means adapted to acquire the information from the indicator device; and predisposing an electronic processing means to calculate in a predetermined manner at least one operational characteristic of the hydraulic system, as a function of the flow-rate measuring device and of the information acquired by the indicator device.

A system for ascertaining fresh water consumption by an, in particular, commercial dishwasher (1) or a component thereof. The system includes a container (12, 22) for temporarily storing liquids, wherein the container (12, 22) has a liquid inlet (25), which can be flow-connected to a fresh water source if required, and a liquid outlet (23), which can be flow-connected to a freshwater consuming means, in particular a freshwater consuming means of the dishwasher (1), if required. The system further includes at least one pressure sensor (B3, B4) for detecting an, in particular, hydrostatic pressure in the container (12, 22), and an evaluation device which is designed to ascertain a fresh water volume flow into the container (12, 22) depending on at least one output value of the at least one pressure sensor (B3, B4).