Water stays in the drum at the end of the cycle. This is one of the most common washer problems — and one of the most fixable.
At Service 2000, our technicians have handled this symptom more than 1,000 times between 2021 and 2025, across all common brands. Here’s what we find in the field, and how to read the situation before calling.
Key takeaways
- A washer that won’t drain is almost always fixable.
- In about 18% of cases, cleaning or clearing a blockage is enough — no part needs replacing.
- The drain pump is the most common cause requiring a replacement — about 33% of service calls.
- The door lock is responsible in about 6% of cases, the electronic control or a sensor in about 5%.
- Other causes (drain hose, other): about 38% of cases combined.
- LG is the most represented brand for this symptom in our data — 1 in 4 service calls in this category.
- 5% of service calls for this symptom end with a completed repair.
What to Do Immediately When the Washer Won’t Drain
Before calling, four simple steps to try in order.
- Run a spin-only cycle. On most models, you can select spin or drain only. If the pump is simply blocked by a light foreign object, the cycle may clear it. If water remains, move to the next step.
- Clean the pump filter. On front-load washers, a filter is accessible at the front bottom of the appliance, behind a small hatch. Place a towel down, unscrew slowly to let the water drain, remove whatever’s blocking it — a coin, a sock, debris. Replace the filter and restart. This step alone resolves the problem in about 1 in 5 cases.
- Check the drain hose. Make sure it isn’t pinched, crushed behind the appliance, or positioned too low. A hose sitting in sink water creates a siphon effect that continuously drains the tub — the machine never detects the correct water level. Raise it to 60–90 cm (24–35 in) off the floor per the manufacturer’s recommendations.
- Do a reset. Unplug the washer for 30 seconds, plug it back in, and restart. A one-time electronic glitch can prevent the drain cycle from triggering without any part being faulty. If the problem returns on the next cycle, service is needed.
What Are the Most Common Causes When a Washer Won’t Drain?
Based on more than 1,000 service calls for this symptom between 2021 and 2025, here’s what our technicians find.
Faulty Drain Pump
The most common cause requiring a replacement — about 33% of service calls. The pump handles water evacuation at the end of the cycle. When it’s nearing the end of its life or blocked by a foreign object, water stays in the tub. On certain LG models, this issue shows up especially often in our data.
Blockage or Clogged Filter
Responsible in about 18% of cases — and this is the good news: in these situations, cleaning the drain circuit or clearing the pump is enough. Many front-load washers have a filter accessible at the front, near the bottom. Emptying it regularly prevents this type of failure.
Door Lock
Involved in about 6% of cases. The machine thinks the door is open and refuses to start the spin or drain cycle. Water stays in the tub not because the pump is faulty, but because the cycle never started.
Electronic Control or Sensor
Responsible in about 5% of cases. A faulty water pressure sensor can incorrectly signal that the tub is empty — or full — preventing the pump from triggering. These failures require a diagnostic before service.
Drain Hose
Rarely the sole cause (under 2%), but a poorly installed, pinched, or overly high hose can prevent drainage through a simple siphon effect.
What Signs Indicate a Technician Is Needed?
If the basic checks don’t resolve it, it’s best to call when:
- Water stays in the tub after a reset and a manual spin cycle
- An unusual noise accompanies the drain attempt — a sign the pump is straining or blocked
- The washer displays a drain-related error code that keeps recurring
- The problem repeats every cycle
Waiting rarely makes the problem worse, but a pump straining continuously can suffer further damage.
Repair or Replace a Washer That Won’t Drain?
The drain pump is a relatively inexpensive part on most models. For a washer under 10 years old in generally good condition, repair is almost always the right call. Beyond 10 years, the decision depends on the appliance’s overall condition and the total repair cost. When the repair isn’t worth it, Service 2000 will tell you plainly.
FAQ
Why won’t my washer drain but it still spins?
If the washer spins partially but leaves water behind, the pump is still working — but not at full capacity. It’s often at the early stage of failure or partially blocked. Preventive service avoids a complete breakdown.
Can my washer drain if I leave it paused?
No. If the pump is faulty or blocked, leaving the machine paused won’t change anything. Water will stay in the tub until the cause is fixed.
My LG washer won’t drain — is that common?
Yes. LG is the most represented brand for this symptom in our data — nearly 1 in 4 service calls for this issue involve an LG appliance. The drain pump is the dominant cause on these models.
Can I manually drain the water before the technician arrives?
Yes. On front-load washers, the pump filter accessible at the front lets you drain the water manually — have a towel and a container ready. On top-load washers, you’ll generally need to use the drain hose, lowering it to floor level.
My washer won’t drain and shows an error code. Where do I start?
Write down the code and check the manual. Drain-related codes (often E21, F21, 5E, OE depending on the brand) confirm the problem is in the drain circuit. A reset may clear the code temporarily, but if it returns, service is needed.