KitchenAid Dishwasher: not draining
What is this symptom?
If your KitchenAid dishwasher is not draining, you're likely facing standing water at the bottom after a cycle. This issue can result from a clogged drain hose, an obstruction in the filter, or even a drain pump failure. Understanding the cause is essential to restore your dishwasher's proper function.
Important Tips for KitchenAid Models
- Newly installed units can fail to drain due to misrouted or kinked drain hose, missing disposal knockout plug, or air gap issues.
Possible Causes
Clogged drain hose
How to Identify: Standing water despite cycle completion and visual inspection shows kinks, debris, or blockages in hose; water may slowly drain or not at all.
Part: Drain hose
Obstruction in dishwasher filter or drain area
How to Identify: Visible food particles, debris, or residue at the filter or drain opening blocking water flow.
Part: Filter/drain basket
Clogged air gap or garbage disposal connection
How to Identify: Dishwasher is connected to kitchen disposal; water backs up when disposal is clogged or air gap is blocked. Inspection shows obstruction at air gap or disposal inlet.
Part: Air gap / disposal connection
Drain pump failure
How to Identify: No humming or spinning sound during drain cycle, or pump runs but water does not drain; multimeter testing shows no power output.
Part: Drain pump
Faulty control board
How to Identify: Drain pump doesn’t activate despite clear hoses/filters, and electrical testing indicates control board failure sending no signal.
Part: Control board
DIY Solutions
Check and straighten drain hose
- Turn off power to dishwasher and open cabinet under sink.
- Locate the drain hose from dishwasher to disposal/drain line.
- Visually inspect for kinks or twists; straighten hose as needed.
- Disconnect hose at both ends if necessary and check for debris; remove blockages with a flexible brush or wire.
- Reconnect hose securely and run a short drain cycle to test.
Clean dishwasher filter and drain area
- Open dishwasher and remove bottom rack.
- Locate filter and drain grate at bottom of tub.
- Remove any food debris or buildup; rinse filter under running water.
- Use soft brush to clean drain opening area.
- Replace filter and run a rinse cycle to verify improved drainage.
Clear air gap and garbage disposal connection
- Locate air gap on sink or disposal connection.
- Remove air gap cover and inspect for debris; clean by flushing with water.
- Check disposal inlet for lodged food; remove obstructions with tongs safely.
- Run disposal briefly to clear any clogs, then run dishwasher drain cycle.
Next step
Choose the next step for not draining
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Drain Hose
Carries waste water from the drain pump to your home's standpipe or sink drain.
- Typical part-only price
- $15 - $30
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Dishwasher Filter
Screens food debris from recirculating wash water and protects the pump system.
Drain Pump
Pumps waste water out of the appliance during the drain cycle.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Professional Repairs
Drain pump replacement
Control board replacement
When to Call a Professional
Preventive Maintenance
-
Clean filters: Debris buildup that leads to clogs and drainage issues
Frequency: monthly -
Inspect drain hose routing: Kinks or improper loops that impede drainage
Frequency: annually
Frequently Asked Questions
Why is my KitchenAid Dishwasher not draining?
How do I fix KitchenAid Dishwasher not draining myself?
How much does it cost to fix not draining?
When should I call a technician for not draining?
References & Sources
Community Analytical Insights
Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions
Common Issues Reported by Users
- Drain pump failure (3 mentions)
- Drain hose issues (2 mentions)
User Suggested Solutions
-
Replace drain pump
-
Raise bend in drain hose
-
Replace wiring harness and reset breaker
-
Replace fill valve
Limited-source guidance; percentages and success-rate claims are not shown
View
Sources
Data compiled from real discussions on r/appliancerepair and r/Appliances:
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Community Discussions
fills on its own after cycle
replaced fill valve
not draining properly, standing water after cycle
The issue was resolved by raising the bend in the dishwasher drain hose.
Cycle interrupted, water remaining in bottom, flashing child lock light, no response when pressing buttons
Replaced wiring harness to the fuse and reset the breaker; dishwasher is functioning again.
the drain motor has apparently gone bad; the dishwasher starts normally but stops before it is done and won’t drain out any water
Replace the drain pump motor for $270 or consider replacing the dishwasher for $800.
not draining
Replacing the drain pump is a viable solution and can be done relatively easily.
Source: Reddit r/appliancerepair
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