Dishwashing appliance with variable speed pump and method for operation thereof

A dishwashing appliance, comprising:

• a pump configured to urge wash fluid to a diverter, the diverter comprising an inlet port formed to permit wash fluid to enter a diverter chamber, wherein the diverter chamber extends between a first outlet opening and a second outlet opening, and wherein an articulatable member is positioned in the diverter chamber, the articulatable member selectively translatable to the first and second outlet openings;
• a first supply conduit fluidly coupled to the diverter at the first outlet opening, wherein a gap is formed at the first outlet opening or diverter chamber to permit fluid flow to the first supply conduit;
• a second supply conduit fluidly coupled to the diverter at the second outlet opening;
• a variable speed motor operably coupled to the pump to selectively urge wash fluid through the inlet port to the diverter chamber;
• and
• a controller operably coupled to the motor, the controller storing instructions that, when executed, causes the motor to perform operations, the operations comprising:
• operating the motor to a wash speed to flow wash fluid through the diverter chamber to the second supply conduit and generate a head pressure of wash fluid at the first supply conduit in fluid communication with the diverter chamber;
• adjusting operation of the motor to decrease speed from the wash speed to an outlet switch speed;
• and
• after a period of time at the outlet switch speed, operating the motor to the wash speed to flow wash fluid through the diverter chamber to the first supply conduit.