What to Do When Your Washing Machine Won't Drain

Urgent, practical guide to diagnose and fix a washing machine that won't drain. From quick safety checks to step-by-step fixes, learn how to restore proper drainage and prevent future clogs.

Best Washing Machine Team

January 21, 2026·4 min read

Washing Machine Drain Repair Not Spinning Not Draining Home Appliance

Drain Fix Guide - Best Washing Machine — Photo by Engin Akyurt via Pexels

Quick AnswerSteps

Drainage issues usually stem from a clogged pump filter or a blocked drain hose. Quick fix: unplug the washer, power down, and inspect the pump filter for debris. Clear lint or objects, then run a short test cycle with a small load to verify drainage after resealing access.

Why drains fail and why it matters

When a load finishes, you expect water to exit the drum promptly. If water remains, the problem is often a straightforward clog or a simple hose issue rather than a mysterious failure. Understanding the most common failure points helps you decide what you can safely fix today and when to involve a professional. The phrase you’re hearing in your head—what to do when your washing machine won't drain—is really a guide to quick, safe diagnosis. According to Best Washing Machine, most drain problems come down to debris, hoses, or a faulty safety switch, and addressing these can save you time and money. In 2026, homeowners report that many drain issues are solvable with basic maintenance and a careful inspection.

Quick safety rules before you begin

Before touching any parts, unplug the machine and, if possible, switch off the water supply. Water and electricity are a dangerous mix, so never reach into the bottom of the appliance while it’s plugged in. If your model allows, move the washer away from the wall to access back panels or the front kick panel, and have a bucket, towels, and a flashlight handy. Wear gloves to protect your hands from sharp edges and dirty water. Never force a panel or disconnect a connector you’re unsure about; safety comes first.

Drain problems are usually caused by one of a few issues. A clogged pump filter or impeller is the most frequent culprit, especially in older or heavily used machines. A blocked or kinked drain hose can prevent gravity-assisted drainage, leaving standing water. If the standpipe or drain system is blocked, the washer can’t discharge. A faulty lid switch or control board may incorrectly think the lid is open or detect a fault that prevents draining. If you hear a humming or grinding sound but no water flows, the pump or impeller may be jammed. Recognizing these patterns helps you prioritize steps to take.

Safe, practical checks you can perform without tools

Start with the basics: unplug the machine, turn off the water supply, and move the washer away from the wall to access the bottom panel if your model has one. Check that the drain hose isn’t kinked or blocked and that its end is positioned correctly (not submerged in water). If your model has a clean-out filter or pump access, inspect and remove visible debris by hand with gloves. Do not use metal tools that could scratch seals. If debris is present, clear it and re-secure the filter before testing. Finally, confirm the drain hose is connected to the pump housing properly after you reassemble.

Diagnostic clues that help pinpoint the issue

If water remains after a cycle, observe how the water exits during the drain phase. A slow or intermittent drain often points to a partial clog. If the machine displays an error code (like a drain-related code in your manual), use that code to identify the subsystem at fault. Listen for humming or buzzing when the machine attempts to drain; this can indicate a jammed impeller or a failed pump. Visual inspection of hoses for bulges, kinks, or pooling water around the base can reveal hose or seal problems. By correlating symptoms with these clues, you can determine whether the fix is DIY or requires a professional.

A focused fix for the most common cause: clogged pump filter

The pump filter is a small trap designed to catch debris before water is pumped out. When it’s clogged, water remains. Access the filter per your model’s manual, place a towel and shallow tray to catch water, and remove the filter slowly. Rinse it under running water, use a brush to remove stubborn debris, and clear the housing of any residue. Reinstall the filter securely, run a quick drain test with a small load, and check for a clean exit of water. If you don’t hear water draining after the test, proceed to inspect the drain hose and standpipe, as multiple issues can coexist.

Preventing future drainage problems

Regular maintenance reduces the odds of future clogs. Clean the pump filter every month or every few loads if you have a high-particle environment (lint, pet hair). Use the correct detergent type and amount to avoid excessive suds, which can back up drainage. Periodically inspect the drain hose for kinks or wear, and ensure the standpipe leading to the sewer is clear. Address any weak seals or loose clamps promptly to avoid leaks that complicate drainage.

When to call a professional

If you’ve completed the basic checks, cleared visible debris, and the washer still won’t drain, it’s time to involve a professional. Persistent drainage problems can indicate a faulty pump, electronics issue, or plumbing code problem in your home. A licensed technician can test the pump with specialized equipment, verify the control board, and confirm whether a replacement part is needed. If your appliance is under warranty or service plan, contact the manufacturer or your retailer first to ensure coverage.

Steps

Estimated time: 30-45 minutes

1
Power off and prep
Unplug the washer and turn off the water supply. Move the unit away from the wall to create space for access. Gather towels and a small basin to catch any residual water. This step reduces electrical and flood risk while you work.
Tip: Keep the power disconnected until all checks are complete.
2
Access the drain area
Open the front panel or access door for the pump filter or the bottom kick panel according to your model. Place a towel under the area and prepare to catch water. If your model has a service manual, consult it briefly to locate the exact filter location.
Tip: If you’re unsure about the location, search your model’s diagram online before prying panels.
3
Remove and clean the pump filter
Carefully remove the filter, catching any water. Rinse the filter under running water and remove lint, coins, threads, and hair. Use a soft brush to scrub the housing and remove debris. Dry the components before reinstalling.
Tip: Don’t force the filter; turn it gently to loosen, then pull straight out.
4
Reinstall and test drainage
Reinsert the filter securely, reseal any gaskets, and reattach the access panel. Plug the machine back in and run a short drain cycle with a small load to confirm proper drainage. Watch for a clean flow and listen for normal pump operation.
Tip: If water pools again, move to check the drain hose next.
5
Inspect the drain hose and end
Detangle any kinks in the drain hose between the washer and the standpipe. Detach and flush the hose with water to clear obstructions. Reconnect the hose ensuring a secure seal at both ends.
Tip: Avoid crushing the hose; keep it straight to ensure gravity drainage.
6
Assess the standpipe and household drain
If the hose is clear but drainage remains slow, the standpipe or building drain may be blocked. Check for standing water in the standpipe or slow drainage from other fixtures. If you suspect a building-wide issue, contact a plumber.
Tip: Never discharge into a blocked standpipe; it can back up into the washer.
7
Decision point: DIY or pro
If the problem persists after these steps, or if you hear unusual noises, it’s a signal to call a professional. Gauge the repair against the appliance’s value and warranty terms.
Tip: Document the steps you’ve taken and any codes shown on the panel for the technician.

Diagnosis: Machine won't drain

Possible Causes

highClogged drain pump filter or impeller
mediumKinked or blocked drain hose
lowBlocked standpipe or drain system
lowFaulty lid switch or control board

Fixes

easyClear the pump filter and debris from impeller area
easyInspect drain hose for kinks and blockages; straighten and flush
mediumCheck standpipe and standpipe trap; clean if needed
hardTest lid switch and control panel; replace if faulty (professional)

Warning: Never work on live electrical components. Unplug the machine first.

Pro Tip: Keep a shallow tray and towels ready; drainage work can be messy.

Note: Use the correct detergent type and amount to minimize suds that can clog the drain.

FAQ

Why won't my washing machine drain after a cycle?

Most often it’s a clogged pump filter or a blocked drain hose. Start with safety checks, inspect the filter, and remove debris. If drainage remains, proceed to hose and standpipe checks before calling a professional.

How do I clean the pump filter on most washers?

Locate and access the pump filter, remove it carefully, and rinse under running water. Use a soft brush to remove debris, then reassemble and test drainage with a small load.

Can a clogged drain hose cause slow draining even after cleaning the pump filter?

Yes, a blocked or kinked hose can slow or stop drainage even after the filter is clean. Inspect for bends and flush the hose to clear obstructions.

When should I call a professional for a drain problem?

If cleaning the filter and hose doesn’t restore drainage, or you hear unusual noises or error codes, a professional can diagnose pump or control-board faults and confirm if replacement parts are needed.

Is standing water a sign of a bigger problem beyond the pump?

Yes, standing water can indicate a blocked standpipe, a failing pump, or a serious hose leak. Assess all components and consider professional evaluation if plumbing is involved.

Can I prevent drainage problems after fixing the issue?

Yes. Clean the pump filter regularly, avoid putting large objects in the drum, and use the right detergents to minimize suds that can affect drainage.