Whirlpool Dishwasher Not Draining? (Two-Part Filter Guide + Fixes)
Quick Fix: Whirlpool dishwashers have a two-part filter system (upper filter + lower filter assembly). Clean both parts — the lower filter trap catches most debris that causes drainage problems.
Your Whirlpool dishwasher has standing water at the bottom after a cycle. This is usually caused by the filter system, which needs regular cleaning. Whirlpool makes this easy once you know where to look. For model-specific instructions, check Whirlpool’s official support site.
Video Guide
Video: “Whirlpool Dishwasher not Draining” by Apartment Maintenance Pro
Whirlpool’s Two-Part Filter System
Unlike some brands with a single filter, Whirlpool uses a two-part system:
- Upper Filter Assembly — The cylindrical filter you twist and remove
- Lower Filter — A flat filter underneath that catches fine particles
Important: Many people clean only the upper filter and wonder why drainage problems persist. The lower filter is often where the real clog is hiding.
What You’ll Need
- Towels
- Soft brush or sponge
- Dish soap
- Flashlight
Step 1: Remove and Clean Both Filters
Accessing the filters:
- Remove the bottom dish rack
- Locate the cylindrical upper filter in the bottom center of the tub
- Turn the upper filter 1/4 turn counterclockwise (arrow indicates direction)
- Lift out the upper filter assembly
- Grasp the lower filter and pull up gently to remove
Cleaning the filters:
- Rinse the upper filter under warm running water
- Use a soft brush to remove stuck-on debris
- For the lower filter, scrub the flat mesh surface thoroughly
- Check for grease buildup — soak in warm soapy water if needed
- Inspect the filter housing (sump) for food particles
- Remove any debris from the sump area
Reinstalling:
- Place the lower filter back first, ensuring it sits flat
- Insert the upper filter and turn 1/4 turn clockwise to lock
- It should feel secure — a loose filter won’t seal properly
Step 2: Check the Drain Hose
The drain hose runs from your dishwasher to either the garbage disposal or sink drain.
Common Whirlpool drain hose issues:
- Kinked hose under the sink
- Hose pushed too far into disposal (blocks drainage)
- Missing high loop installation
Whirlpool’s high loop requirement: The drain hose must loop up to the underside of the countertop before connecting to the drain. This prevents dirty water from siphoning back into the dishwasher.
Check under your sink:
- Trace the drain hose from the dishwasher
- Verify it loops up high before going down to the disposal/drain
- Straighten any kinks
- If pushed too far into the disposal, pull back 1-2 inches
Step 3: Clear the Garbage Disposal
If your Whirlpool drains through a disposal:
- Run the disposal for 15-20 seconds
- Run water while disposal operates
- Check for the knockout plug if disposal is new
Food buildup in the disposal can back up into your dishwasher. Make it a habit to run the disposal before starting a dishwasher cycle.
Step 4: Run Diagnostic Mode
Whirlpool dishwashers have a diagnostic mode that can help identify issues.
Entering diagnostic mode (most models):
- Make sure the dishwasher is empty and door is closed
- Press any three buttons in sequence: 1-2-3, 1-2-3, 1-2-3 (within 3 seconds)
- The dishwasher will enter diagnostic mode
- Watch for error codes on the display
Common Whirlpool error codes:
| Code | Meaning |
|---|---|
| F2E2 | Stuck button on control panel |
| F6E4 | Water flow issue |
| F8E4 | Drainage problem |
| F9E1 | Drain hose position issue |
Manual drain test: In diagnostic mode, you can run individual tests including a drain-only cycle. Consult your owner’s manual for your specific model’s button sequence.
Step 5: Check the Drain Pump
If the filter is clean and hose is clear, the drain pump may be the issue.
Signs of Whirlpool pump problems:
- Humming sound but no drainage
- Complete silence during drain cycle
- Grinding noise from bottom of dishwasher
Pump location: The drain pump is at the bottom of the dishwasher. Accessing it requires removing the lower kickplate panel and potentially disconnecting hoses.
For detailed pump testing and replacement, see our drain pump guide.
Whirlpool-Specific Tips
Filter Cleaning Schedule
Whirlpool recommends cleaning filters monthly, but frequency depends on use:
| Usage Level | Cleaning Frequency |
|---|---|
| Light (1-2 loads/week) | Every 2 months |
| Normal (4-5 loads/week) | Monthly |
| Heavy (daily use) | Every 2 weeks |
Models with Self-Cleaning Filters
Some older Whirlpool models have self-cleaning filters with a built-in grinder. These don’t need manual cleaning but are noisier. Check your model number — if you don’t see a removable filter, you likely have a self-cleaning system.
KitchenAid Connection
Whirlpool owns KitchenAid, and many components are shared. If you have a KitchenAid dishwasher, this troubleshooting guide applies. See also our KitchenAid guide for model-specific details.
When to Call for Service
Contact Whirlpool service if:
- Filters are clean but error codes persist
- Pump makes no sound during drain cycle
- Water leaks from bottom of dishwasher
- Diagnostic mode reveals electrical errors
Whirlpool support: 1-866-698-2538
Preventing Future Problems
- Clean filters monthly (set a phone reminder)
- Scrape large food particles before loading
- Don’t block the spray arms with oversized items
- Run hot water at the sink before starting a cycle
- Use Whirlpool-recommended detergent amounts
FAQ
How do I manually drain my Whirlpool dishwasher?
Press the Cancel/Drain button and hold for 3 seconds. This cancels the current cycle and activates the drain pump for about 2 minutes. If there’s a significant clog, you may need to remove water manually with towels or a wet/dry vacuum.
Where is the filter on my Whirlpool dishwasher?
The filter is at the bottom center of the dishwasher tub. Remove the bottom rack to access it. Turn the cylindrical upper filter counterclockwise to remove. Don’t forget the lower flat filter underneath — lift it out separately.
Why is my Whirlpool dishwasher not draining completely?
A small amount of water (1/4 inch) is normal and keeps seals moist. If you have more water than that, the most common cause is a partially clogged lower filter. Remove and clean both the upper and lower filters thoroughly.
How do I reset my Whirlpool dishwasher?
Press the Cancel button twice quickly, then press Start once. Wait for the dishwasher to beep or the lights to reset. Alternatively, turn off power at the breaker for 1 minute, then restore power.
Need more help? See our complete dishwasher not draining guide for additional troubleshooting that applies to all brands.