A warewash machine includes a chamber for receiving wares, the chamber having at least one spray zone in which a liquid is recirculatable from a tank to a spray assembly for spraying the liquid on wares. A delime system is configured for delivering a delime solution to the tank. A controller is configured for operation in at least one ware cleaning mode and at least one delime operation mode. The controller is configured such that, in the delime operation mode, the delime system is controlled to carry out a delime operation in which the controller (i) controls the delime system to deliver delime solution into the tank and (ii) carries out an acidity reduction process to reduce acidity of the delime solution.

A method includes starting cleaning program stored in memory of control device of dishwasher by start signal triggered on input device of the dishwasher, detecting current actual value of state variable in the dishwasher by sensor, comparing the detected actual value with reference value of relevant state variable stored in the control device, determining parameter and/or parameter value associated with the parameter based on the comparison, outputting output signal associated with the parameter and/or the parameter value on output device, detecting adjustment signal associated with the output signal, generated in response to input on the input device or on input device associated with the dishwasher, and associated with the parameter and/or the parameter value, and continuing to run the cleaning program with original program configuration, modified program configuration, or suspend strategy for ending the cleaning program, according to the adjustment signal.

Provided herein are systems, methods, apparatus, and computer program products relating to a dynamic dispensing system. Embodiments may include a dishwasher including a washing chamber, a water supply, an additive supply, and a plurality of fluid supply lines that provide fluid communication between the water supply and the washing chamber and the additive supply and the washing chamber. The dishwasher includes one or more pumps that direct additives stored in the additive supply to the washing chamber and water from the water supply to the washing chamber. The dishwasher further includes a tank sensor within the washing chamber and a controller communicably coupled to the controller. The controller may receive and analyze signals from the tank sensor to determine an additive concentration within the washing chamber and cause additive or water to be added to the washing chamber in response to the signal.

A dishwashing apparatus may include a sump. The sump may include a sump pan configured to couple with a wash chamber of the dishwashing apparatus. The sump may include a sump well coupled to the sump pan and configured to collect the liquid from the sump pan. The sump well may include a well inlet in communication with the sump pan. The sump pan may convey the liquid to the well inlet. A recirculation port extending through a first wall of the sump well. A drain port may extend through a second wall of the sump well. The second wall defines a bottom of the sump well. The dishwashing apparatus may include a controller. The controller may monitor electrical characteristics of a pump. The controller may provide a notification if fluid is not flowing through the pump.

The present application relates to a system for dispensing a detergent solution from a solid detergent into a dishwasher said dishwasher comprising a washing chamber and being capable of performing cleaning cycles each including washing and rinsing periods; the system including a dispenser for dissolving solid detergent blocks and dispensing detergent solution, wherein the dispenser is configured to accommodate solid detergent, to be removably retrofittable into the dishwasher, and, to allow continuous release of all detergent solution as it is formed. In various applications the system may include a battery-powered control unit and a conductivity sensor, configured to measure the conductivity of the washing liquid and to provide the measured conductivity value to the control unit, said control unit is configured to process the conductivity value and to produce a signal.

A dispensing device for a washing machine, including a first portion configured to hold and dispense a solid detergent and a liquid detergent, and a second portion configured to hold and dispense a solid rinse aid and a liquid rinse aid. At least one of the first portion or the second portion includes at least one weight sensor on a bottom interior surface, the at least one weight sensor configured to monitor an amount of remaining contents of the at least one of the first portion or the second portion.

An apparatus for dispensing a detergent solution from a solid detergent into a dishwasher can be attached to a dishwasher rack around a perimeter of the rack and collect water in the dishwasher and use the collected water to produce the detergent solution by dissolving a portion of the solid detergent. In various embodiments, the apparatus can include a detergent chamber to accommodate the solid detergent and optionally an end-of-detergent indicator to indicate an amount of the solid detergent in the detergent chamber. In various embodiments, release of the detergent solution can be controlled passively using size of a liquid outlet or actively using operational state of the dishwasher and/or a sensed signal indicative of the concentration of the detergent in the dishwasher water.

WO

A dishwashing apparatus may include a sump. The sump may include a sump pan configured to couple with a wash chamber of the dishwashing apparatus. The sump may include a sump well coupled to the sump pan and configured to collect the liquid from the sump pan. The sump well may include a well inlet in communication with the sump pan. The sump pan may convey the liquid to the well inlet. A recirculation port extending through a first wall of the sump well. A drain port may extend through a second wall of the sump well. The second wall defines a bottom of the sump well. The dishwashing apparatus may include a controller. The controller may monitor electrical characteristics of a pump. The controller may provide a notification if fluid is not flowing through the pump.

The present application relates to a system for dispensing a detergent solution from a solid detergent into a dishwasher said dishwasher comprising a washing chamber and being capable of performing cleaning cycles each including washing and rinsing periods; the system including a dispenser for dissolving solid detergent blocks and dispensing detergent solution, wherein the dispenser is configured to accommodate solid detergent, to be removably retrofittable into the dishwasher, and, to allow continuous release of all detergent solution as it is formed. In various applications the system may include a battery-powered control unit and a conductivity sensor, configured to measure the conductivity of the washing liquid and to provide the measured conductivity value to the control unit, said control unit is configured to process the conductivity value and to produce a signal.