Whirlpool Dishwasher Not Draining — Causes & Repair Parts

Whirlpool Dishwasher Not Draining — Causes & Repair Parts

Whirlpool dishwasher showing dishwasher not draining? Here are the 5 most common causes, how to diagnose each, and 8 OEM-compatible repair parts available with fast US shipping.

Common Causes of Not Draining in Whirlpool Dishwashers

  1. Clogged drain pump: Food debris clogs the pump impeller, stopping water flow through the drain line.
  2. Blocked drain filter basket: The filter basket under the lower rack collects debris. A clogged filter stops drainage.
  3. Defective drain pump motor: A failed pump motor cannot force water out through the drain hose.
  4. Kinked drain hose: A drain hose bent sharply creates a siphon that prevents water from leaving the tub.
  5. Garbage disposal knockout not removed: On new installations, the knockout plug in the disposal must be removed or drain flow is blocked.

How to Diagnose Your Whirlpool Dishwasher

  1. Unplug the dishwasher or trip the dedicated circuit breaker before any inspection.
  2. Remove and clean the filter basket at the bottom of the tub — rinse under running water.
  3. Inspect the spray arm holes for clogging — use a toothpick to clear blocked jets.
  4. Check the door gasket for cracks, missing sections, or debris preventing a tight seal.
  5. Run a short cycle and observe water fill level — should reach the bottom of the door.
  6. Test the door latch for proper engagement by firmly pressing the door closed and listening for a click.
  7. Check for error codes on the display and consult the manufacturer service manual.

Compatible Repair Parts (8 in stock)

All parts below are OEM-compatible and verified to fit Whirlpool dishwashers.

Related Repair Guides

When to Call a Professional

If dishwasher not draining persists after replacing the parts above, or you encounter issues with the sealed refrigerant system, gas supply connections, or high-voltage wiring, consult an authorized Whirlpool repair technician or a licensed appliance service professional.

Why RepairKitHub

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