Washing Machine Won't Drain: 6 Causes, 1 Simple Test

Last Updated on October 4, 2026 by Umar Farooq

When a washing machine won’t drain, it is almost always blocked somewhere along a very short path, and you can inspect nearly all of it yourself in about twenty minutes.

Here is the thing worth knowing before you start pulling the machine out from the wall. Water leaves the drum by exactly one route: out of the tub, through the pump filter, into the drain pump, along the drain hose, and into your household standpipe. That is five components, and four of them are either outside the machine or reachable through a small access panel designed for exactly this job. The pump itself — the part everyone assumes has died, and the part that costs the most to replace — sits in the middle and is statistically the least likely thing to have failed.

Most drain failures turn out to be a coin, a hair clip, or a hose that got pushed too far into the standpipe when someone moved the machine. Work the path in order, from the outside in, and you will usually find it before you need to buy anything.

This guide is for a drum still holding water that the cycle cannot clear. It is not for a machine that drains eventually but slowly, and not for one where you can hear the pump running while the water stays put — both of those are narrower symptoms that point somewhere different, and both are linked at the end.

The mechanical repair is the same on every brand. What differs is the filter access path and the error code your machine displays — both covered in the brand sections below.

Why a washing machine won’t drain: the most likely causes, in order

The order here matters, because it reflects how often each one actually turns out to be the answer rather than how serious each one sounds. People tend to work this list backwards, starting with the pump because it is the part they have heard of, and that is why so many working pumps get replaced.

A clogged drain pump filter — the single most common cause on front-load and combo machines. It sits at the bottom of the machine specifically to catch what falls out of pockets, and over a year or two it collects lint, coins, hair clips and buttons until flow through it stops. Most top-load machines do not have one, which changes the diagnosis considerably.
A kinked, crushed or badly positioned drain hose. This includes a hose hung too high for the pump to lift water against, pushed too deep into the standpipe, frozen in a cold garage, submerged at its outlet, or simply squashed flat when the machine was pushed back against the wall.
A blocked household standpipe — nothing wrong with the washing machine at all. The isolation test below separates this from a machine fault in about two minutes and is the single highest-value thing on this page.
A machine that isn’t level. Easy to dismiss as cosmetic, but it genuinely interferes with draining rather than just with spin.
A drain pump failure. Real, and it does happen — but much less common than the four above, and identified by whether the pump can be heard trying at all.
A door or lid lock that never confirms. The control will not start the drain step until the lock reports closed, so a failing lock switch can look exactly like a drain fault while the pump sits there perfectly healthy and never asked to run.

Five details that decide which half of this page applies

Five minutes spent here decides which half of this page applies to you, and it is what a technician will ask for if this does end up going to service.

Model number and form factor. Front-load and combo machines usually have an accessible pump filter; most top-loaders do not. This single fact decides half the checks below.
Any code on the display, noted exactly as shown — including whether the character is a letter or a number.
How much water remains, and whether it has changed since the cycle stopped.
Whether you can hear the pump attempt to run during a drain. A hum is good evidence; total silence means something different.
Whether nearby drains are slow too — a sink or floor drain backing up points away from the washing machine entirely.

Normal behaviour vs an actual fault

Some cycles hold water deliberately. A soak option, a delay setting, or a programmed pause between stages will all leave a drum full of water that looks alarming and is completely intentional. If you selected the cycle and it is still running, nothing is wrong yet. A genuine fault is water that does not move at all while the machine is actively trying to drain — you should be able to hear the difference, because a draining machine makes a distinct pumping sound that a stalled one does not.

Work the drain path from outside in

These checks need no disassembly beyond an access panel meant for user maintenance. Do them in order — each one rules out a section of the path, and skipping ahead usually means doing the earlier ones anyway after the expensive guess turns out to be wrong.

!Person adjusting a front-loading washing machine

1. Check the drain hose and standpipe

Start outside the machine, because this is where installation mistakes live and none of them require tools to fix. The most common one happens quietly: someone pulls the machine out to clean behind it, pushes it back, and the hose ends up pinched between the cabinet and the wall. The machine drained perfectly last week and now it does not, with nothing having obviously changed.

Confirm the hose is not kinked, crushed or pinched. Leaving roughly 4 inches (10 cm) of clearance behind the machine is the standard way to prevent this.
Confirm the hose is not inserted too deep into the standpipe. Too far in and it seals, which stops drainage and can start siphoning.
Confirm the hose is not hung at a raised point, pressed flat, frozen, submerged at its outlet, or routed under the machine — each of these independently prevents proper draining.
Confirm the machine is level.
Confirm no extension kit has been added to the hose.

2. Run the isolation test — is it the washer or your plumbing?

This is the highest-value two minutes in the whole diagnosis, and almost nobody does it. It answers a question that decides everything that follows: is the machine failing to push water out, or is the drain refusing to take it? Those look identical from the front and need completely different people to fix.

Disconnect the drain hose from the standpipe and put its end into a bucket or floor drain.
Press Power and run a Spin cycle.
Watch what comes out of the hose.

If water drains normally from the hose, the machine is fine and your household drain is blocked. Stop servicing the appliance and clear the standpipe — you need a plunger or a drain auger, not a pump.

If little or nothing comes out, the restriction is inside the machine. Continue to the filter.

3. Clean the drain pump filter (front-load and combo machines)

This is where the problem usually is. The filter is a deliberate trap — it exists so that the coin in your jeans pocket ends up somewhere retrievable instead of jammed in the pump impeller. That means finding something unpleasant in there is not a sign of neglect; it is the part doing its job.

Expect water. However carefully you drain first, the filter housing holds some and it will run out when the filter comes free. A shallow pan and a towel turn this from a mess into a two-minute job.

Make sure the machine is off and unplugged, and the drum is as empty as you can get it.
Put a shallow pan and towel down.
Open the access panel at the lower front.
Pull out the small emergency drain hose, remove its plug, and let the water drain into the pan. Do not pull the hose too far out — it kinks and stops draining.
Turn the filter counter-clockwise to remove it.
Clear lint, coins and debris, rinse the filter, and wipe the recess.
Reinsert and turn clockwise until it stops. Close the panel.

If a hot cycle ran recently, wait about an hour for the water to cool before opening this compartment.

Clean this filter monthly as routine maintenance, not only when something goes wrong. It is the single highest-return five minutes of appliance maintenance there is, and skipping it is what turns a clean filter into a dead pump two years later.

On most top-load machines there is no accessible pump filter. Don’t spend an afternoon hunting for a panel that does not exist — put that effort into the hose and standpipe checks and the isolation test instead, because on those machines that genuinely is the full user-serviceable path.

Stop-use warning: Never open a pump filter while the machine is running, plugged in, or holding water under pressure. Residual water can be hot enough to scald. Don’t force a stuck filter — cross-threading it cracks the housing and turns a clog into a leak. If you see signs of electrical damage, or water has reached any electrical component, unplug at the breaker and stop.

A humming pump is good news; silence is not

What you observed	What it means	Where to go next
Water drains fine once the hose is disconnected	Household drain blockage, not the machine	Clear the standpipe
Filter came out clogged	Confirmed, and the most common cause	Clean it, resume monthly maintenance
Hose kinked, crushed or hung too high	Confirmed installation restriction	Correct position and clearance
Pump hums but no water moves	Pump is energised — a restriction, not a dead motor	Filter, impeller, hose
Complete silence during a drain attempt	Pump is not being commanded	Door/lid lock feedback, or control
Everything above clear, still no drain	Points at the pump itself	Professional diagnosis

Two rows in that table deserve more than a line, because they are the ones people misread most often.

A humming pump is good news. That hum is the motor trying to turn against something it cannot move — which means, before you have opened anything, you already know four things are fine: the control board decided it was time to drain, the wiring carried that decision to the pump, the pump has power, and the motor windings work. Pumps get replaced for this symptom constantly, and most of those pumps were never broken. What you are actually looking for is small, hard, and wedged against the impeller.

Silence is the more serious signal. If nothing at all happens when the machine should be draining, the pump was never told to run. That points backwards, at the door lock refusing to confirm or at the control board, rather than at anything in the drain path. It is also the case least likely to be fixable without a technician.

Past this point, confirming a pump or control-board fault needs model-specific testing. Don’t use voltage or resistance values from outside your manufacturer’s own materials for your model.

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Samsung: hose installation first, then the debris filter

Samsung identifies incorrect drain hose installation as the most common reason for drain problems, and notes that an unlevel washer can itself interfere with draining (Samsung washing machine will not drain).
Insert the hose 6 to 8 inches into the standpipe — not jammed all the way in, not barely in.
Samsung’s instruction is flat, with no qualifier: “Is not using a drain hose extension kit”.
Filter access: front-load models have a small access door at the front-bottom, opened by pressing firmly or with a coin depending on model. Follow Samsung’s documented procedure rather than a workaround (Samsung, “How do I clean the debris filter in my front loading Samsung washing machine?”, read live on 2 September 2026).
Top-load Samsung models vary a lot — on many the filter sits at the bottom of the tub behind an agitator or impeller cap. Confirm your manual rather than assuming.
Code to expect: 5E, SE, 5C, SC, 1 5C or nd — all the same no-drain condition, described by Samsung as “water is not draining from the washer at the correct speed (or at all)” (Samsung, “Samsung washing machine information and error codes”, read live on 2 September 2026). Full breakdown: Samsung washer 5C or 5E error.

LG: lower front left, monthly, and the frozen-hose thaw

LG’s guidance is unusually direct about where to look, and it matches the order on this page.

Check whether the drain hose is kinked or clogged, and check the pump filter, and LG notes that “a clogged drain pump filter may prevent draining” (LG washing machine — water not draining (OE error)).
Filter access: the panel is at the lower front left, opened by pulling the tab downward and out. LG recommends cleaning it monthly (LG washer — how to clean the drain pump filter).
LG confirms the pump filter is “only present on LG frontload washers and combo units” and “not available on top load washers” — so on an LG top-loader, skip the filter hunt entirely.
LG’s top-load documentation names each hose fault separately: hung at a raised point, suspended, pressed, crushed, clogged, frozen, submerged, or routed under the machine (LG, “LG top load washing machine — water is not drained during washing”, read live on 2 September 2026).
Frozen hose? Pour warm water (50–60 °C / 122–140 °F) into the drum, close the door, and wait 1–2 hours for the pump to thaw. This is worth knowing before January, because a garage-installed machine that suddenly will not drain in a cold snap is almost never broken.
Code to expect: OE, E03 or E21 — “the washing machine is unable to drain the water used during the wash cycle.”

Whirlpool, Maytag, Amana and Kenmore 110: F9E1 and drn

These four share a control platform, so the code language is identical across all of them — which is genuinely useful, because a fix documented for a Whirlpool almost always applies to the Maytag wearing a different badge. Expect F9E1 for a drain fault and drn as a drain message. The mechanical checks on this page apply unchanged; the filter is at the lower front on front-load models.

Frigidaire and Kenmore 417 report E21

Expect an E21 drain code on the Electrolux platform. Filter access is at the lower front on front-load models.

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Don’t prove it with a full load of wet towels

Do not put a full load in as your test. A machine that half-works will drain a small amount of clean water and fail on 8 kg of wet towels, and you want to know that now rather than at 11pm.

With the drum empty, run a Spin-only cycle and confirm previously trapped water drains completely.
Watch the drain phase itself, not just the end result — it should complete at a normal pace rather than struggling.
Confirm no drain code appears.
Run one normal load to confirm the fix holds in everyday use.
If you cleaned the filter, note the date and keep to a monthly interval.

If it still won’t drain, treat that as new evidence pointing at the pump rather than repeating the same external checks.

No pump sound at all, or a code that survives every check

Hose confirmed clear and correctly installed, filter confirmed clean, and it still won’t drain.
The isolation test showed the problem is the washer, not your plumbing, and cleaning didn’t fix it.
No pump sound at all during a drain attempt.
A drain code persists after every documented check for your form factor.
Household plumbing beyond the washer is also affected.
You see or smell electrical damage, or water has reached an electrical component.
You’re not confident handling the residual water safely.

If the display is stuck on Rinse

A machine that sits on Rinse and never advances is usually this fault wearing a different label — the rinse finished, the water will not leave, and the control will not permit spin until the tub is confirmed empty. Same diagnosis, different display: see washer stuck on rinse cycle.

FAQ

It drains, just much more slowly than it used to. That’s a partial restriction rather than a blockage, and worth diagnosing on its own before touching the pump. See washing machine drains too slowly.

I can hear the pump humming, but no water moves. Useful evidence — it points away from a dead pump motor and toward a restriction in the filter, impeller or hose. See washing machine drain pump humming.

It fills, then the water leaves again straight away. That’s close to the opposite problem — water leaving when it shouldn’t, usually a drain hose pushed too deep into the standpipe causing siphoning. See washing machine fills then drains.

It stops partway through the cycle with water still in the drum. Often connected — undrained water is a common reason a cycle stalls before spin. See washing machine stops mid cycle.

Is some water in the filter housing normal when I open it?

Yes. Some always runs out no matter how completely the drum drained first. Have a towel ready.

How often should I clean the filter if nothing is wrong?

Monthly, on front-load and combo machines. Waiting for standing water or a drain code is treating a preventable problem reactively — and a filter that has been ignored for two years is how a working pump ends up straining itself to death.

Does a long cycle time mean drainage is the problem?

Not necessarily — cycles extend for several unrelated reasons, including excess suds. See washing machine stops mid cycle.

My top-loader has no filter — what do I check instead?

The hose and standpipe checks and the isolation test. On most top-loaders that genuinely is the full user-serviceable path, and anything past it is a service call.