Patent ID: 9192280
Filing Date: 2015-11-24
Classification: A47L,B01D

Abstract:
1. A method for detecting and removing a clogging condition of a filter in a dishwasher, the method comprising: determining at least one of a normal water level for a wash cycle of the dishwasher or a normal rate at which the water level changes during the wash cycle; monitoring at least one of a current water level during execution of the wash cycle or a current rate at which the water level changes during execution of the wash cycle; detecting the clogging condition of the filter, wherein the clogging condition is indicated by at least one of a deviation of the monitored current water level from the normal water level or a deviation of the monitored current rate of water level change from the normal rate of water level change; determining a degree of the clogging condition of the filter that corresponds to an amount of water capable of passing through the filter; determining, based on the degree of the clogging condition of the filter, a remedial operation from among a plurality of different remedial operations to execute to facilitate removal of the clogging condition; determining a current position of the wash cycle within the wash cycle being executed; executing the determined remedial operation to facilitate removal of the clogging condition from the filter; determining if the clogging condition has been removed following execution of the remedial operation; resuming operation of the dishwasher based at least on the current position if the clogging condition has been removed; and performing at least one ceasing operation of the dishwasher, ceasing operation of a component of the dishwasher, executing the determined remedial operation again, or executing a second remedial operation if the clogging condition has not been removed, wherein the plurality of different remedial operations include at least one different step relative to one another.