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LG Washer Not Draining: Pump Filter and OE Error Fix

Quick Answer

LG Washer not draining: clean the drain pump filter first - it is the most common cause and takes 5 minutes. Access it from the small panel at the lower front of the machine. Coins, small clothing items, and hair ties collect here and block the pump.

LG's high-efficiency pumps are seriously sensitive to flow restrictions, way more than most brands I work on. If you hear grinding or humming but no water's moving, something's physically jammed in that impeller. I see this probably three times a week. Ignoring it burns out the pump motor, and that part runs $80-120. Always drain that little black hose first before cracking the filter cap or you'll have two gallons of gray water all over your floor.

LgWasherSeverity: moderate85% DIY Success
Time to Fix
10–60 min
Difficulty
beginner
Parts Cost
$10 – $50
Tools Needed
Phillips #2 screwdriver, Flathead screwdriver (to pop filter door open)

LG Washer Not Draining: Pump Filter and OE Error Fix

Most people misread OE as zero-E and spend twenty minutes Googling the wrong thing. Before you tear anything apart, look at your standpipe. I find at least once a week that the drain hose got shoved too far down the pipe, and that creates a siphon effect that fights the pump the whole cycle. Check the filter first, then the hose position, then the pump motor itself.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Drain pump filter clogged with coins, hair ties, debris40%
Drain hose kinked behind washer24%
Small garment jammed in pump impeller14%
Standpipe or house drain clogged12%
Drain pump motor failed10%

Symptoms You May Notice

  • OE error code flashes on the display, usually around the 8-10 minute mark of the spin cycle when the machine realizes it's not making progress.
  • You open the door and there's still standing water in the bottom of the drum, sometimes 3-4 inches deep.
  • You can hear the drain pump humming or buzzing hard but the water level isn't dropping at all.
  • Clothes come out absolutely soaking, dripping on the floor when you carry them out.
  • There's a sour or musty smell coming from the machine, especially around the door gasket where water's been sitting for hours.
  • The whole cycle just stops partway through with water still in the tub and the machine won't advance to the next step.

Can you reset a Lg washer to clear the NOT-DRAINING code?

To perform a true hard reset on an LG board, unplug the washer and hold the Start, Pause button down for five seconds. Plug it back in and select a Spin Only cycle. This forces the drain pump to engage immediately. If the OE code returns within two minutes of starting that cycle, the sensor still detects water and the physical blockage hasn't been cleared.

Tools Required for Diagnosis

Phillips #2 screwdriverFlathead screwdriver (to pop filter door open)Shallow pan or baking dish (for filter drain)Old towels, at least 2-3Flashlight or phone lightNeedle-nose pliers (for impeller debris)Multimeter (for pump motor resistance test)

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

Did the fix not work?

If the problem comes back after following these steps, a component has permanently failed and needs replacement. Check the specific error code your washer is showing:

OE Error →HUB Error →NOT-SPINNING Error →
ComponentComponent Under Test
Expected Range5–10 ohms
ConditionIf Open (OL) or infinite, replace component.

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
LG Drain Pump Motor4681EA2001T · $25–$50
LG Drain Pump Filter383EER2001A · $10–$20
LG Drain HoseAEM73732901 · $15–$25

Frequently Asked Questions

Where is the LG washer drain filter?
On LG front-loaders, look at the bottom left corner of the front panel. There's a small square door that pops open with your finger or a flathead screwdriver. Inside you'll see a large round cap and a small rubber hose. If you've got a top-loader, it's a totally different situation. Top-loaders don't have a user-accessible filter you can just pull out. You'd have to tip the machine back and get into the pump housing from underneath, which is more of a two-person job and a different repair entirely.
LG washer OE error but filter is clean. What now?
When the filter's clean and the OE code's still there, I check three things in order. First, stick your finger in the filter hole and manually spin the impeller blades. If they're stiff or something tiny's jammed in there, that's your culprit. Second, check your standpipe depth. Hose too far in creates a siphon. Third, run the pump motor resistance check with a multimeter. Should read 5-10 ohms. Open circuit or way outside that range means the motor's gone and you're buying a new pump.
How often should I clean the LG drain filter?
LG says monthly but honestly that's overkill for most people. Every three months is realistic for a regular family. But if you've got dogs that shed, kids who leave rocks and change in their pockets, or you wash a lot of pet bedding, check it every 6-8 weeks. A clogged filter makes your pump work way harder than it should, and that's how a 5-minute filter cleaning job turns into a $200 pump replacement six months down the road.
How much does it cost to replace an LG drain pump?
The pump itself runs $80-120 depending on your model. Part number 4681EA2001T covers a huge range of LG front-loaders. Labor is another $100-150 if you call a tech out. Honestly it's a pretty doable DIY repair. Front panel comes off, three hose clamps, one wire harness connector, four screws. I replaced three of these last Tuesday alone. Takes about 45 minutes if you've never done it before, maybe 20 if you have.
Can too much detergent cause an LG washer to not drain?
Yeah, absolutely. HE machines like LG front-loaders use way less water than old-school top-loaders, so the detergent-to-water ratio matters a lot more. If you use regular detergent or even too much HE detergent, you get a foam situation where the suds trick the pressure sensor into thinking there's still water in the drum. The machine just keeps trying to drain and never thinks it's finished. If you suspect this, run an empty cycle with no detergent and see if it clears. Going forward, HE-rated detergent only, and follow the cap fill lines.

Related Lg Washer Error Codes

Code: OELG OE: Drain ErrorCode: HUBLG Washer Error CodesCode: NOT-SPINNINGLG Washer Not Spinning

Same Fix Works on These Brands

Lg shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

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Models Known to Experience NOT-DRAINING Errors

This repair applies to most Lg washers with this error code. Common model numbers include:

WM3900HWA, WM4000HWA, WM3700HWA, WT7300CW, WT7100CW, WM2250CW

MS

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 15, 2026