A condition warning system for an apparatus such as a pot and pan washing machine, a control system and control methods for a pot and pan washing machine are provided. The condition warning system includes a control system that monitors operational, safety or compliance parameters of an apparatus, and a light that illuminates a location below (or above) an operator's direct line of sight, and which is outside of the operator's direct line of sight. The control system and control methods include a punitive wash action lockout, an extended wash cycle time, and a deep clean wash cycle.

Dishwashing appliances and methods, as provided herein, may include features or steps such as measuring a first pressure in a sump with a pressure sensor and storing the first pressure in a memory of the dishwashing appliance as a reference pressure. Dishwashing appliances and methods may further include features or steps for measuring a second pressure within the sump with the pressure sensor after measuring the first pressure, and determining that a check valve is failed when the second pressure exceeds the first pressure by at least a predetermined margin.

A dishwasher comprises an image sensor, first and second drawers, first and second actuators configured to respectively extend or retract the first and second drawers, and a computer system. The computer system is configured to receive images from the image sensor, determine whether an object is within a threshold distance, and in response to determining that an object is moved to within the threshold distance, use a washwear recognition system to determine whether the object comprises an washwear item. A determined washwear type and a washwear dimension are used to identify an unoccupied location in of a size and configured suitable to receive the washwear item. In response to identifying an unoccupied location of a size and configured suitable to receive the washwear item, an actuator among the first actuator and the second actuator is caused to extend a corresponding drawer to thereby receive the item of dishware.

A method and a dishwasher capable of analyzing the closure state of the filter of the dishwasher by using a deep neural network model trained through machine learning of artificial intelligence is provided. The dishwasher may include a microphone configured to obtain a drainage sound signal generated by draining washing water through the filter during operation of the dishwasher, a processor configured to analyze the degree of closure of the filter based on the drainage sound signal, and an alarm generator configured to generate an alarm if the degree of closure is a greater than or equal to a predetermined level. The operational state of the dishwasher may be analyzed based on a drainage sound of the washing water drained to the filter by the degree of closure of the filter.

The present invention relates to an information light system to inform users about operating status of an electronic household appliance, especially a dishwasher, without opening a door of the household appliance, and a dishwasher comprising the same. The information light system (1) is characterized by comprising an electronic board (3) which has a lighting element (3a) thereon and adapted to communicate with a control unit of the dishwasher; a chamber (2) which comprises a first wall (2a) and two second walls (2c), wherein the chamber (2) is in the form of a housing suitable for placing the electronic board (3) and enables light to be reflected onto a second surface which is opposite to the first surface; a cover (2b) which covers at least partially the chamber (2) and comprises a reflecting area (2f) which is light-transparent, has a form focusing the light emitted from the lighting element (3a), and is located such that light emitted from the lighting element (3a) can reach, wherein a light focusing element is located on the reflecting area; a connector (4) for energising the electronic board (3) and which is located at the chamber (2); and a flap (5) which is located on the first wall (2a) and at an outer surface of the first fall (2a) not facing the chamber (2) so as to be at the same side with the connector (4), and is connected from a side to the chamber (2) in an inclined manner in such a way that it can direct the liquid coming to the chamber (2) away from the first wall (2a).

A dishwasher thermometer captures temperature data of temperature sensed within a dishwasher during a wash cycle. The dishwasher thermometer includes a wireless communication interface that transmits the captured temperature data to one or more of a server and a monitor device. When the captured temperature data indicates that the wash cycle did not achieve defined temperature threshold(s), an alert is generated at the server and/or the monitor device indicating that the wash cycle did not meet appropriate washing conditions. In embodiments, the temperature data may be accessible to a third party for certification of the dishwasher wash cycle.

The dishwasher status indicator includes an announcement module, a monitoring module, and a wireless communication link. The wireless communication link exchanges data between the monitoring module and the announcement module. The dishwasher status indicator is for use with a dish washing machine. The dishwasher status indicator monitors the operation of the dish washing machine. The dishwasher status indicator determines and indicates when the contents of the dish washing machine are clean. The monitoring module is placed inside of the dish washing machine. The monitoring module detects the presence of water in the dish washer to determine whether the dish washer has run. The announcement module attaches to the door of the dish washing machine. The announcement module visually and audibly indicates whether the contents of the dish washing machine are clean and dirty.

Dishwashing appliances and methods, as provided herein, may include features or steps such as performing a drain cycle; detecting a pressure (P1) during an activation period of the drain cycle; comparing the pressure to a first predetermined pressure limit; comparing the pressure to a second predetermined pressure limit; determining a target fill value based on a difference between a normal fill volume and a fluid volume corresponding to P1; and initiating a fill cycle based on the target fill value.

A free-standing Energy Recovery System enables sanitary recovery of thermal energy with heat transfer from hot waste effluent to incoming domestic water. The source of the effluent may, for example, be conventional commercial ware-washing, clothes washing equipment, pasteurization and other industrial processes.

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.