LG Washing Machine Error Code OE — What It Means & How to Fix It

What Does This Error Mean?

The OE error means your LG washer cannot drain the water. The machine tried to pump out the water but it is still sitting in the drum. This is usually caused by a clogged drain filter, kinked hose, or blocked pump.

Affected Models

LG WM3900HWA
LG WM4000HWA
LG WT7300CW
LG WM2250CW
LG WT7150CW

Common Causes

The drain filter at the bottom front of the washer is clogged with lint, coins, or debris
The drain hose at the back of the machine is kinked or crushed
The drain hose is pushed too far into the standpipe, creating a siphon
The drain pump is blocked by a small object like a sock or hair tie
The drain pump motor has failed and can no longer pump water

How to Fix It

Locate the drain filter on the bottom front of your washer. It is usually behind a small access panel.

Place towels on the floor first. Water will come out when you open the filter.
Open the access panel and pull out the small drain hose. Let the water drain into a shallow pan or bowl.

There may be a lot of water. Empty the pan and repeat until no more water comes out.
Twist the drain filter counterclockwise and pull it out. Remove any lint, coins, buttons, or debris.

It is normal to find small objects here. Check this filter every few months to prevent future clogs.
Check the main drain hose at the back of the washer. Make sure it is not kinked, crushed, or pushed more than 6 inches into the standpipe.

The hose end should sit loosely in the standpipe. If it is jammed in too far, it creates a siphon effect.
Reinstall the filter, close the panel, and run a drain and spin cycle to test.

If the OE error returns after cleaning everything, the drain pump itself may need replacement.

When to Call a Professional

Try cleaning the drain filter and checking the hose first — these fixes cost nothing. If the pump motor has failed, a technician will need to replace it. Pump replacement costs roughly $150 to $250 including parts and labor.

Frequently Asked Questions

How do I drain the water out of my LG washer manually?

Open the small access panel on the bottom front of the washer. Pull out the small emergency drain hose and remove its cap. Let the water drain into a shallow pan — you may need to empty it several times.

How often should I clean the drain filter on my LG washer?

LG recommends cleaning the drain filter once a month. If you wash a lot of lint-heavy items like towels and blankets, check it every two weeks. Regular cleaning prevents OE errors and keeps the pump running smoothly.

Can too much detergent cause the OE error?

Yes, using too much detergent creates excessive suds that can confuse the drain sensor. Always use HE (High Efficiency) detergent in your LG washer. Use the amount recommended on the bottle — usually less than you think.