Methods and apparatus to detect treating chemistries in laundry appliances
First Claim
1. A method of operating a laundry treating appliance having a tub, a rotatable drum disposed in the tub and defining a treating chamber in which laundry is received for treatment according to a cycle of operation, and a treating chemistry dispenser to dispense a treating chemistry into at least one of the tub or the drum, the method comprising:
- adding a predetermined amount of liquid to a cup of the dispenser sufficient to activate a siphon in the cup if a predetermined amount of the treating chemistry is present in the cup;
determining whether the siphon activates in response to the predetermined amount of liquid based on an output of a sensor; and
modifying the cycle of operation based on whether the siphon activates in response to the predetermined amount of liquid, wherein a controller is configured to execute the adding, determining, and modifying steps.
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Accused Products
Abstract
An example laundry treating appliance includes a tub, a rotatable drum disposed in the tub and defining a treating chamber in which laundry is received for treatment according to a cycle of operation, a treating chemistry dispenser having an outlet and a cup having a siphon, configured to dispense a treating chemistry into at least one of the tub or the drum, a sensor, and a controller configured to at least: introduce a predetermined amount of liquid into the cup sufficient to activate the siphon if a predetermined amount of the treating chemistry is present in the cup; detect whether the siphon activates in response to the predetermined amount of liquid based on an output of the sensor; and modify cycle of operation based on whether the siphon activates in response to the predetermined amount of liquid.
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Citations
9 Claims
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1. A method of operating a laundry treating appliance having a tub, a rotatable drum disposed in the tub and defining a treating chamber in which laundry is received for treatment according to a cycle of operation, and a treating chemistry dispenser to dispense a treating chemistry into at least one of the tub or the drum, the method comprising:
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adding a predetermined amount of liquid to a cup of the dispenser sufficient to activate a siphon in the cup if a predetermined amount of the treating chemistry is present in the cup; determining whether the siphon activates in response to the predetermined amount of liquid based on an output of a sensor; and modifying the cycle of operation based on whether the siphon activates in response to the predetermined amount of liquid, wherein a controller is configured to execute the adding, determining, and modifying steps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification