Detection of dishwasher heating defect based on connected data
AssigneeHaier US Appliance Solutions, Inc.
InventorsHaitian Hu, Paul Newsom
Life of this patent
Estimating the term…
Abstract
A dishwashing appliance having a heating system and a method of detecting a fault in a dishwasher heating system. The method includes forming a cluster of historic wash water temperature readings recorded from one or more dishwasher cycles and comparing a current wash water temperature reading with the cluster of historic wash water temperature readings. A heating system fault is determined based on the comparison and displayed.
Claims20
A method of detecting a heating system fault in a dishwasher appliance connected to a network, the dishwasher appliance comprising a heating system, a temperature sensor, and an appliance controller, the method comprising:
- forming a cluster of historic wash water temperature readings recorded from one or more dishwasher cycles;
- receiving a current wash water temperature reading of a dishwasher cycle;
- recording the current wash water temperature reading in a memory location including the cluster of historic wash water temperature readings;
- comparing the current wash water temperature reading with the cluster of historic wash water temperature readings;
- determining a heating system fault based on the comparison;
- and
- displaying the heating system fault.
A method of detecting a heating system fault in a disconnected dishwasher appliance, the disconnected dishwasher comprising a heating system, a temperature sensor, and an appliance controller no longer connected to a network, the method comprising:
- operating the heating system to heat a wash water during a dishwasher cycle;
- receiving a current wash water temperature reading for the dishwasher cycle;
- comparing the current wash water temperature reading with a cluster of historic wash water temperature readings recorded from one or more dishwasher cycles and saved at a memory location;
- determining a heating system fault based on the comparison;
- and
- displaying the heating system fault.
A dishwasher appliance connected to a network, the dishwasher appliance comprising a heating system, a temperature sensor, and an appliance controller, wherein the appliance controller is configured to:
- form a cluster of historic wash water temperature readings recorded from one or more dishwasher cycles, the historic was water temperature readings saved to a memory location;
- operate the heating system to heat a wash water during a dishwasher cycle;
- receive a current wash water temperature reading from the temperature sensor for the dishwasher cycle;
- record the current wash water temperature reading in the memory location;
- receive a signal corresponding to a heating system fault;
- and
- display a heating system fault message.
Dependencies are inferred from the claim text.