Dishwasher water fill control system

Details Dishwasher water fill control system Dishwasher water fill control system

B - Operations, Transporting

05

C

341/34.1

B05C 11/10 (2006.01) B05C 21/00 (2006.01)

Patent

CA 1207409

ABSTRACT OF THE INVENTION: A water fill control system for a dishwasher having a solenoid actuated water inlet valve electrically in series with pump motor for recirculating wash water. The pump inlet is connected to receive tub water head and pump discharge is applied to a sensing disphragm to actuate a movable pole piece for defeating solenoid primary armature operation when the solenoid coil is energized. The solenoid employs a secondary armature operative only in response to the coil experiencing locked rotor current in the pump motor. When the solenoid coil is energized for normal water inlet operation, either normal wash water pressure from the pump outlet or a locked pump rotor will effect closing of the water inlet valve.

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