Pump cycling control system for a washing machine

Details Pump cycling control system for a washing machine Pump cycling control system for a washing machine

D - Textiles, Paper

06

F

D06F 33/00 (2006.01) D06F 39/08 (2006.01)

Patent

CA 2400688

A drain pump of a washing machine is cyclically activated during a drain operation conducted as part of a spin cycle in a manner which reduces the run time of the pump. At least one dynamic operating parameter of the washing machine is sensed and used to control the operation of the drain pump. In accordance with a preferred embodiment of the invention, the rotational speed of the wash tub is sensed and, when a predetermined spin speed is maintained for a prescribed period of time, the drain operation is initiated. Water level, pump power and/or drive motor torque can also be utilized as pump cycling control parameters.

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