Direct answer: If an LG washer is not draining, the usual cause is a blockage in the drain path: a kinked washer drain hose, a clogged washer drain pump filter, or debris jammed in the washer drain pump. A drain pump that hums but will not move water is common too.
Most likely: Start with the easy stuff you can see: standing water in the tub, a low or kinked drain hose, and a clogged pump filter behind the lower access area. Those account for most no-drain calls.
When a washer will not drain, the machine usually tells on itself. If you hear the pump running but water barely trickles out, think blockage. If you hear only a hum or grinding, think pump jam or pump failure. If the washer drains sometimes and not others, check hose routing and load issues before blaming parts. Reality check: coins, hair pins, and small socks cause more washer drain failures than expensive components. Common wrong move: forcing repeated drain cycles with a full tub and hoping it clears itself.
Don’t start with: Do not start by ordering an electronic control or tearing the washer apart. Most no-drain complaints are a clog or a pump problem you can confirm first.
Clothes are soaked and the door may stay locked because the washer still senses water inside.
Start here: Start with safe draining, then check the washer drain pump filter and the washer drain hose for a restriction.
You hear humming or a steady motor sound, but the standpipe or sink drain gets only a weak trickle.
Start here: Look for a clogged washer drain pump filter, debris in the pump impeller area, or a crushed washer drain hose.
The cycle reaches drain, but the washer is quiet or clicks and does nothing.
Start here: Confirm the washer is actually trying to drain, then suspect a failed washer drain pump or a wiring/control issue if the simple checks are clean.
One load drains, the next one leaves water behind, especially with bulky items or heavy suds.
Start here: Check for an intermittent hose kink, partial clog, oversudsing, or a pump that is getting weak under load.
This is the most common homeowner-fixable cause. Water may drain slowly, the pump may sound strained, and the tub often keeps some water behind.
Quick check: Open the lower service area, drain the water into a shallow pan, and inspect the filter for lint, coins, hair pins, or fabric debris.
If the hose is crushed behind the washer or shoved too far into the standpipe, the pump cannot move water properly and the problem may come and go.
Quick check: Pull the washer forward enough to inspect the full visible hose run for sharp bends, flattening, or an insertion depth that looks excessive.
A pump that hums, rattles, or grinds but does not move water often has something caught in the impeller area.
Quick check: After draining and removing the filter, look into the pump cavity with a flashlight for coins, elastic strings, or small hard debris.
If the hose and filter are clear and the pump either does not run or only hums without turning, the pump itself is a strong suspect.
Quick check: Run a drain cycle after clearing blockages. If the pump still will not move water, or sounds rough and weak, the washer drain pump is likely worn out.
A full tub changes everything. You need control of the water before you can inspect the drain path without making a mess.
Next move: Once the tub is mostly empty, you can inspect the filter, pump cavity, and hose without guessing. If you cannot get the water under control, the door will not unlock, or the washer is stacked and unsafe to move, stop and schedule service.
What to conclude: A washer that is full of water is not automatically a bad pump. First you need to see whether the drain path is blocked or the pump is failing.
This is the highest-payoff check on a no-drain washer. Small debris collects here first and can stop draining completely.
Next move: Reinstall the filter snugly, run a drain or rinse-and-spin cycle, and watch whether water now leaves at a normal pace. If the filter was clean or the washer still will not drain, move on to the drain hose and standpipe check.
What to conclude: A packed filter or jammed cavity points to a blockage problem, not a control problem. If the impeller area is clean but the pump still struggles, the pump itself moves up the list.
A washer can act like it has a bad pump when the hose is kinked, crushed, or installed in a way that chokes flow.
Next move: If the washer drains normally after correcting the hose, the problem was setup or a partial blockage in the hose path. If the hose routing is good and flow is still weak or absent, the pump is the next likely suspect.
Pump sound gives you a strong clue. A healthy pump usually has a steady motor sound and pushes water with authority. A bad one often hums, grinds, or stays dead quiet.
Next move: A normal drain sound with strong discharge means the repair was likely cleaning or hose correction, not part replacement. If the pump is clearly weak, jammed, noisy, or dead after the simple checks, plan on replacing the washer drain pump.
Once the filter, cavity, and hose are ruled out, replacing the pump is the practical next move. If the symptom does not match a pump failure, do not guess at electronics.
A good result: The washer should empty promptly, unlock normally, and spin out clothes without leaving standing water behind.
If not: If a new pump does not change the symptom, the problem is no longer a simple blockage or pump failure.
What to conclude: Most homeowners can solve this with cleaning or a pump replacement. If that does not fix it, the remaining causes are less common and less efficient to chase by guesswork.
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That usually points to a blocked drain path or a washer drain pump that is trying to run but cannot move water. Start with the washer drain pump filter and pump cavity, then check the washer drain hose for a kink or clog.
Yes. Many washers will not move into a full spin if they still sense water in the tub. If the washer cannot drain properly, it often leaves clothes wet and stops short of a normal spin-out.
If the filter and hose are clear and the pump still only hums, grinds, or stays silent during a drain command, the washer drain pump is the leading suspect. A clean drain path with weak or no pumping is the key clue.
No. Drain cleaners and harsh chemicals are not a good first move for a washer. They can damage parts, create a mess when you open the machine, and do not solve a coin, sock, or pump impeller jam. Stick with physical cleaning and inspection.
At that point the washer drain pump is the most likely repair. If replacing a confirmed-bad pump does not fix it, the problem may be in wiring or control components, which is a good place to bring in a pro instead of guessing.