Whirlpool Dishwasher Not Draining — What’s Happening
A Whirlpool dishwasher that won’t drain usually leaves standing water in the tub at the end of a cycle. This is typically a drain obstruction or drain-system failure, not a single fault code. Some models display a drain-related code, while others show the symptom with no code at all.
Whirlpool identifies the problem as a blockage or malfunction somewhere in the drain path, including the filter, drain pump, drain valve, drain hose, air gap, or garbage disposal connection. The control has detected that water is not leaving the tub as expected.
Most Likely Causes
- Clogged filter Whirlpool identifies the dishwasher filter as the most common source of drain blockage.
- Kinked or clogged drain hose Kinks, improper installation after remodeling, or debris in the hose can stop draining.
- Blocked garbage disposal or sink connection A clogged disposer inlet or connection can back up the dishwasher drain path.
- Clogged air gap If your model is equipped with an air gap, blockage there can prevent draining.
- Drain pump obstruction or failure Debris can jam the pump impeller, or the pump motor itself can fail.
- Drain valve fault The drain valve can be clogged with debris or fail mechanically, and Whirlpool notes it is replaced rather than repaired when defective.
How to Diagnose and Fix
- Verify the symptom by checking whether water remains in the tub after a full cycle or manual drain command.
- Disconnect power at the breaker and remove standing water from the tub using a cup or wet-vac.
- Remove the lower rack, locate the filter assembly at the bottom of the tub, lift or twist it out, rinse it under running water, and clear any trapped debris.
- Run the garbage disposal and check the disposal connection where the dishwasher drain hose attaches to confirm the path is clear.
- Inspect the drain hose for kinks, improper routing, or blockage, and check the air gap (if equipped) for debris.
- Access the drain pump (usually under the tub or behind the lower kickplate), remove it if possible, and check for debris, broken impeller parts, or a seized rotor.
- Test the drain pump for electrical continuity and verify it receives power when a drain cycle runs. If power is present and the pump does not run, replace it.
- Reassemble all components, restore power, and run a drain test cycle while checking for leaks.
Parts You Might Need
| Part | Notes |
|---|---|
| Drain pump | Amazon | Replaced when motor fails or will not run with power present |
| Drain impeller | Amazon | Replaced if broken or jammed and not serviceable separately |
| Drain valve | Amazon | Replaced rather than repaired when clogged or mechanically defective |
Related Error Codes
If your appliance also shows a code on the display, these match this problem:
- Whirlpool Dishwasher E1 error code
- Whirlpool Dishwasher E15 error code
- Whirlpool Dishwasher E3 error code
- Whirlpool Dishwasher E4 error code
- Whirlpool Dishwasher E6 error code
- Whirlpool Dishwasher E7 error code
- Whirlpool Dishwasher F10E5 error code
- Whirlpool Dishwasher F1E1 error code
- Whirlpool Dishwasher F2E2 error code
- Whirlpool Dishwasher F3E1 error code
- Whirlpool Dishwasher F3E2 error code
- Whirlpool Dishwasher F4E3 error code
When to Call a Pro
Call a qualified appliance technician if the filter, hose, and disposal connections are clear but the dishwasher still will not drain, or if you are not comfortable working with electrical connections or removing the drain pump. A pro can test pump voltage and continuity safely, diagnose control-board issues, and replace sealed components like the drain valve or pump assembly without risk of leaks or further damage.