Patent ID: 8844156
Filing Date: 2014-09-30
Classification: D06F

Abstract:
1. A method of operating a clothes dryer comprising a rotating drum defining a drying chamber without a liquid drain, an air system supplying air to and exhausting air from the drying chamber, a heating system for heating the air in the air system, a treating chemistry dispensing system having a treating chemistry supply conduit fluidly coupled to the treating chamber for dispensing a treating chemistry into the treating chamber, and a controller for controlling the operation of the drum, air system, heating system and dispensing system to at least one treating cycle of operation, the method comprising: automatically executing a purge detection routine to detect a purge condition during the operation of the clothes dryer indicative of a need to purge the supply conduit of treating chemistry; automatically executing a purge cycle to purge at least a portion of the supply conduit of treating chemistry in response to the automatic detection of the purge condition; and removing the purged treating chemistry from the clothes dryer without draining the purged treating chemistry from the treating chamber.