Patent ID: 8852351

Claim:
A method of operating a dishwasher having a tub at least partially defining a treating chamber for receiving utensils to form a wash load, a spraying system capable of spraying liquid in the treating chamber independent of the motion or non-motion of a spray arm, and a drive mechanism for selective, incremental, and discrete rotation of at least one rotatable spray arm around the centerline of the rotation of the rotatable spray arm and controlled according to a cycle of operation, the method comprising: incrementally rotating the rotatable spray arm of the spraying system around a rotational shaft about the centerline of rotation of the rotatable spray arm through multiple portions of the treating chamber; selectively spraying liquid in the multiple portions of the treating chamber during the incremental rotation; receiving a load input for at least some of the multiple portions from at least one sensor in response to the selectively spraying; determining a load condition for at least those multiple portions having a load input to define a set of load conditions for the wash load; and setting at least one parameter of the cycle of operation based on the set of load conditions.