Tub full of water and machine hums
You hear the washer trying to drain, but the water level barely drops or drops very slowly.
Start here: Start with the washer drain hose and pump filter because the pump is likely blocked, not dead.
Washer Drain Problem
Samsung Washer Not Draining
Direct answer: A Samsung washer that will not drain is usually dealing with a blocked drain path, a kinked washer drain hose, or a washer drain pump that hums but cannot move water. Start outside the machine, then check the pump filter and drain path before you buy anything.
Most likely: Most often, lint, coins, hair pins, small socks, or sludge are slowing the water at the pump filter or pump inlet.
If the tub is still full at the end of the cycle, separate one thing first: is the washer trying to drain and failing, or is it not trying at all? That one clue saves a lot of wasted time. Reality check: a washer that leaves water behind is far more often clogged than electronically dead. Common wrong move: forcing repeated spin cycles with a full tub can overwork the pump and make a simple clog turn into a real pump failure.
Don’t start with: Do not start by ordering a control board or tearing the whole washer apart. Drain problems are usually simpler and more physical than that.
If you hear humming or a weak grinding soundGo straight to the hose and pump filter checks. The pump is usually powered but blocked.
If it stays quiet and never even tries to drainCheck for a paused cycle, lid or door lock issue, or a pump that has failed open electrically.
Last reviewed: 2026-04-16
What this drain failure looks like
Tub full of water and machine is quiet
The cycle ends or stalls with standing water, but you do not hear a drain attempt.
Start here: Check that the cycle is actually calling for drain, then pay attention to door lock behavior and whether the drain pump ever gets power.
Drains a little, then stops
Some water leaves, then the flow slows to a trickle or quits.
Start here: Look for a partial clog in the pump filter, pump housing, or washer drain hose.
Drains but comes back or never fully empties
The tub seems to empty, then water remains in the bottom or backs up during the cycle.
Start here: Check for a drain hose installed too low, shoved too far into the standpipe, or a house drain restriction nearby.
Most likely causes
1. Clogged washer drain pump filter or pump inlet
This is the most common cause when the washer hums, drains slowly, or leaves dirty water in the tub. Small items and lint collect right where the pump needs clear flow.
Quick check: Drain the tub safely, open the service access if your model has one, and inspect the filter area for coins, fabric, hair, or sludge.
2. Kinked, pinched, or partially blocked washer drain hose
A hose crushed behind the washer or packed with lint can let a little water through but not enough to finish the cycle.
Quick check: Pull the washer forward enough to inspect the full hose run and make sure it is not flattened, twisted, or jammed too deep into the standpipe.
3. Washer drain pump impeller jammed or drain pump worn out
If the filter and hose are clear but the pump only hums, rattles, or moves almost no water, the impeller may be damaged or the pump may be weak.
Quick check: After clearing blockages, run a drain cycle and listen closely. A strong pump sounds steady and moves water fast. A bad one often hums, chatters, or runs with poor flow.
4. Drain setup or house drain problem outside the washer
If the washer drains into a slow standpipe or the hose is installed wrong, the machine can look like it has an internal failure when it does not.
Quick check: Watch the standpipe during drain. If it backs up, overflows, or the hose siphons water back, the problem is outside the washer or at the hose setup.
Step-by-step fix
Step 1: Confirm the exact failure before opening anything
You want to know whether the washer is trying to drain and failing, or never starting the drain at all. That changes the whole job.
- Cancel the cycle and select a drain or spin setting if your washer allows it.
- Listen for the first 30 to 60 seconds: a healthy drain attempt usually gives you a clear pump sound and moving water.
- Look through the door or lid opening area and note whether the water level drops at all.
- If the washer is badly out of balance or packed with heavy wet items, redistribute the load once and try drain again.
Next move: If it drains normally after redistributing the load or restarting the drain cycle, you likely had a load or cycle interruption issue rather than a failed part. If it hums with little or no water movement, stay focused on a blockage. If it stays silent, keep an eye on door lock behavior and pump failure possibilities.
What to conclude: Noise with no flow usually points to a clogged path or weak pump. Silence points more toward a control, wiring, lock, or dead pump issue, but clogs still come first because they are more common.
Stop if:
- Water is spilling onto the floor.
- You smell burning plastic or hot electrical odor.
- The washer rocks hard enough that moving it feels unsafe alone.
Step 2: Check the washer drain hose and standpipe setup
This is the fastest external check, and a bad hose run can mimic an internal pump failure.
- Unplug the washer before pulling it forward.
- Inspect the washer drain hose from the back of the machine to the standpipe or sink connection.
- Straighten any kink, flattening, or tight bend, especially where the washer may have rolled back onto the hose.
- Make sure the hose is not taped airtight into the standpipe and not shoved excessively deep into the drain opening.
- If the standpipe is already slow or backing up, stop blaming the washer until that drain is cleared.
Next move: If correcting the hose position restores a strong drain, the washer itself is probably fine. If the hose looks good and the standpipe handles water normally, move to the pump filter and internal drain path.
What to conclude: A hose problem is common and cheap to fix. If the outside path is clear, the restriction is usually at the filter, pump housing, or pump itself.
Step 3: Drain the tub safely and clean the pump filter area
On many Samsung washers, this is where the real problem shows up. The filter catches debris, and the pump inlet behind it is a magnet for small items.
- Unplug the washer.
- Use the small emergency drain hose if your model has one, or prepare shallow pans and towels before opening the filter area.
- Drain the water slowly so you do not flood the floor.
- Remove the washer drain pump filter cap and clear lint, coins, hair pins, fabric strings, and sludge.
- Reach carefully into the filter opening and feel for debris at the pump inlet. The impeller should turn with slight magnetic resistance, not feel locked solid.
- Rinse the filter with warm water and mild soap if it is slimy, then reinstall it snugly.
Next move: If the washer drains strongly after cleaning the filter area, you found the problem. Run a rinse and spin to flush the rest of the path. If the filter was clean or the washer still will not drain, the clog may be deeper in the hose or the pump may be failing.
Step 4: Check for a deeper blockage in the washer drain path
If the filter area is clear but flow is still weak, the blockage is often in the washer drain hose or pump outlet path.
- Keep the washer unplugged.
- Disconnect the washer drain hose from the house drain and inspect the hose opening for lint mats or trapped fabric.
- If you can access the lower hose path safely, check for a sock, coin, or debris lodged between the tub outlet and the pump.
- Flush the washer drain hose with water at a sink or tub if it is removable and badly packed with residue.
- Reassemble carefully and make sure every hose connection is fully seated before testing.
Next move: If the washer now drains fast and clean, the problem was a partial blockage downstream of the filter. If the path is clear and the washer still hums or barely moves water, the drain pump is the leading suspect.
Step 5: Test the drain again and decide whether the pump is the repair
This final check keeps you from buying a pump before the drain path is actually clear.
- Reconnect everything, restore power, and run a drain or spin cycle with the tub empty if possible.
- Watch and listen: a good drain pump should move water out quickly with a steady sound, not a weak hum.
- If the washer is still full, the path is clear, and the pump only hums, rattles, or runs with poor flow, plan on replacing the washer drain pump.
- If the washer never attempts to drain and also shows door lock or cycle-control problems, stop at diagnosis and consider professional service because the issue may be outside the pump itself.
A good result: If the washer drains fully and reaches spin, finish with one more rinse cycle and keep an eye out for leaks around the filter and hose connections.
If not: If the pump has power symptoms but cannot move water after the path is cleared, replace the washer drain pump. If there is no drain attempt at all, the next step is electrical diagnosis rather than random parts buying.
What to conclude: A cleared drain path plus a weak or noisy pump is the cleanest confirmation for pump replacement on this symptom.
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FAQ
Why is my Samsung washer not draining but still spinning a little?
That usually means the washer is trying to finish the cycle with water still in the tub. A partial clog in the pump filter or washer drain hose is more likely than a major electronic failure.
How do I know if the washer drain pump is bad?
First clear the filter and hose path. If the washer still hums, rattles, or barely moves water with a clear drain path, the washer drain pump is the likely repair.
Can a clogged house drain make my Samsung washer seem broken?
Yes. If the standpipe backs up, overflows, or drains slowly during the washer's drain cycle, the washer may be fine and the plumbing is the real problem.
Should I keep running drain and spin to force the water out?
Not over and over. One retry after redistributing the load is reasonable, but repeated attempts with a blocked drain can overheat or wear out the pump.
Why does my Samsung washer leave a little water in the bottom?
A small amount around the sump area can be normal on some models, but standing water across the tub floor or wet clothes at the end of the cycle points to a slow drain problem.
Do I need to replace the filter if the washer is not draining?
Usually no. Most filters just need to be cleaned. Replace the Samsung washer drain pump filter only if it is damaged, stripped, cracked, or leaking after reinstalling.