Washer Not Draining Properly (Troubleshooting Guide)

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Quick answer
Confirm the symptom
Tools and prep
Step-by-step troubleshooting
Common causes table
Parts matching
When to call a pro
FAQ
Related guides

Quick answer

If your washer isn't draining, first unplug it and check the drain pump, hose, and filter for clogs. Clear any blockages and ensure the hose is properly positioned. If the issue persists, the pump or control board may need replacement.

Confirm the symptom

Water remains in the tub after the cycle ends
Washer makes gurgling or humming noises during drain phase
Draining takes significantly longer than usual
Error code related to drainage appears on the display
Water backs up into the tub during spin cycle

Tools and prep

Screwdrivers (flathead and Phillips)
Flashlight
Bucket or towels for water cleanup
Adjustable wrench
Work gloves
Plunger (optional for stubborn clogs)
Owner's manual for model-specific details
Turn off power at the circuit breaker for safety

Step-by-step troubleshooting

Check Drain Hose
Do: Locate the drain hose at the back of the washer and inspect for kinks, clogs, or improper positioning.
Observe: Hose is kinked or clogged with debris.
Means: Obstructed flow prevents proper drainage.
Next: Straighten the hose or clear the clog with a brush or plunger.
Inspect Drain Pump
Do: Access the drain pump (usually at the front or bottom of the washer) and check for blockages like lint, coins, or small objects.
Observe: Pump is clogged or damaged.
Means: Clogs or mechanical failure stop water from draining.
Next: Remove and clean the pump, or replace it if damaged.
Check Pump Filter
Do: Locate and remove the pump filter (often near the drain pump) and clean out any debris.
Observe: Filter is clogged with lint or hair.
Means: A dirty filter restricts water flow.
Next: Rinse the filter and reinstall it securely.
Verify Drain Hose Height
Do: Ensure the drain hose is not higher than 90 inches from the floor and is not submerged in water.
Observe: Hose is improperly positioned.
Means: Incorrect height or submersion causes siphoning or blockage.
Next: Adjust the hose to the correct height and ensure it's not submerged.
Test with Power Off
Do: Unplug the washer and wait 1 minute before plugging it back in to reset the system.
Observe: Drainage resumes normally.
Means: A temporary electrical issue was causing the problem.
Next: Run a test cycle to confirm the fix.
Check for Error Codes
Do: Consult the owner's manual to interpret any displayed error codes related to drainage.
Observe: Specific error code is displayed.
Means: The washer's control board has detected a specific issue.
Next: Follow manual instructions to address the error or replace faulty components.
Examine Water Inlet Valve
Do: Ensure the water inlet valve is fully open and not obstructed.
Observe: Valve is closed or clogged.
Means: Restricted water flow can affect drainage cycles.
Next: Open the valve fully or clean it if clogged.
Inspect Tub for Debris
Do: Check the inside of the washer tub for large debris that might be blocking the drain hose opening.
Observe: Debris is blocking the drain hose.
Means: Physical obstruction prevents water from exiting.
Next: Remove the debris and ensure the hose is clear.

Common causes

Cause	Likelihood	Difficulty	Part often needed
Clogged drain pump or filter Lint, hair, or small objects block water flow.	Common	Easy	Drain pump, pump filter
Kinked or improperly positioned drain hose Physical obstruction or incorrect height prevents proper drainage.	Common	Easy	Drain hose
Failed drain pump motor Motor burns out or mechanical parts break, stopping water removal.	Sometimes	Medium	Drain pump
Faulty control board Electrical issues prevent the pump from activating.	Rare	Hard	Control board
Blocked drain line or standpipe Debris or buildup in the home's plumbing system restricts flow.	Sometimes	Medium	Plumbing service
Malfunctioning water inlet valve Improper water flow can affect drainage cycles.	Rare	Medium	Water inlet valve
Overloaded washer Too many clothes block the drain hose or pump.	Sometimes	Easy	None
Incorrect installation Improper setup during installation causes drainage issues.	Rare	Medium	Drain hose, installation guide

Parts matching

Common parts needed to fix a washer not draining include:

Drain pump
Pump filter
Drain hose
Water inlet valve
Control board (for advanced issues)

Purchase OEM parts for your specific washer model to ensure compatibility.

When to call a professional

Drain pump or control board replacement requires advanced tools or electrical knowledge
Persistent drainage issues after cleaning all accessible components
Error codes persist or worsen after troubleshooting
You suspect a blocked home drain line or plumbing issue
Washer is under warranty and DIY repairs may void it

FAQ

How often should I clean the drain pump filter?

Clean it every 3–6 months, or more frequently if you notice drainage issues or excessive lint buildup.

Can a clogged drain hose cause the washer to stop mid-cycle?

Yes, a blockage can trigger error codes or halt the cycle to prevent water overflow or damage.

Is it safe to use a plunger on the drain pump?

Yes, but only if the washer is unplugged and the pump is accessible. Avoid forcing it to prevent damage.

Why does my washer drain slowly even after cleaning the pump?

Check the drain hose height, ensure it's not kinked, and inspect the home's drain line for blockages.

Can a faulty water inlet valve affect drainage?

Yes, if the valve restricts water flow, it can disrupt the drainage cycle and cause imbalances.

What if the drain pump makes noise but doesn't drain?

The pump motor may be failing. Test by unplugging and replugging the washer, or replace the pump if the issue persists.