The Whirlpool Quiet Partner III dishwasher has sensors that adjust the cleaning level and length of the wash cycle according to the load size and the soil level on the dishes. In addition, the unit has pressurized nozzles on the spray arms and different wash cycles for various dishware and wash and dry requirements. However, if the water does not drain from the dishwasher, owners may want to perform some checking to see if the reason can be determined.
The Whirlpool dishwasher pauses several times during a wash cycle, and it can be easy to misinterpret these brief pauses as an indication that the cycle has completed. If the dishwasher is opened when the cycle has not finished, water may be present in the dishwasher. To complete the wash cycle, close the door firmly and select a "Drain" cycle. Wait for the "Clean" light indicator to illuminate after a wash cycle to indicate when a cycle has finished.
If there is a garbage disposal installed in the sink, look underneath the sink at the connection between the dishwasher and the garbage disposal. If the knockout plug, a hard plastic item, was not removed between the two during installation, the dishwasher will not drain completely. Ensure the knockout plug is removed, and run the garbage disposal to help clear the drain.
An air gap, which looks like a plastic or metal bullet-shaped dome on the kitchen sink, is connected to the dishwashing system. If the dishwasher is not draining, remove the top from the air gap and clear any debris found in the hose and the hose connections. Reattach the hose, and close the air gap.
Take a look at the bottom of the dishwasher tub and find the impeller, which is a round plastic item that has blades on each side. Ensure the impeller can spin and move freely. Look under the wash impeller for the drain impeller, which looks like the wash impeller. Verify that the drain impeller can move freely as well.
While you are looking in the bottom of the dishwasher, look for any objects that may be blocking the drain valve and creating the problem. If you do not see anything and other troubleshooting efforts have failed to clear the drainage problem, contact a repair center for help as the drain valve, motor or pump assembly may need repair.