OE3
LG Washing Machine
Severity: ModerateWhat Does This Error Mean?
The OE3 error on an LG washer means the machine is not draining water properly — specifically that the drain pump ran but failed to empty the drum within the expected time. Water is still in the drum after the drain cycle completed, triggering this error.
Affected Models
- WM3900HWA
- WM4000HWA
- WM4500HBA
- WM3500CW
- Most LG front-load washers
Common Causes
- Drain pump filter is clogged with lint, coins, or debris
- Drain hose is kinked, blocked, or installed too high on the standpipe
- Drain pump impeller is jammed by a small object
- Drain pump motor has failed
- Household drain or standpipe is partially clogged
How to Fix It
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Select a Drain or Spin Only cycle to attempt to drain the remaining water.
This sometimes forces the pump to clear a minor blockage. If the cycle completes, check the filter next.
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Locate the drain pump filter access panel at the bottom front of the washer.
Place towels and a shallow pan underneath. Slowly unscrew the filter cap — water will flow out.
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Remove the filter completely and clean out any lint, hair, or foreign objects.
Rinse the filter under warm water. While the filter is out, shine a flashlight into the port to check for objects still inside the pump.
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Check the drain hose at the back of the machine for kinks or blockages.
The drain hose should not go more than 6 inches into the standpipe — deeper than that creates suction that prevents proper drainage.
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Reinstall the clean filter and run a spin-only cycle.
Listen to the pump — it should run quietly and steadily. A loud buzzing with no water draining indicates a jammed or failed pump.
When to Call a Professional
If cleaning the filter and checking the drain hose does not resolve OE3, the drain pump may be damaged. A small object can crack the pump impeller. A technician can remove and inspect the pump and replace it if needed. Expect repair costs of $120–$220.
Frequently Asked Questions
How often should I clean the drain filter on my LG washer?
LG recommends cleaning the drain filter every 2 months or so. If you frequently wash items with loose fibers or have pets, check it monthly. A clogged filter is the single most common cause of drain errors on LG washers.
Why is there still water in my LG washer after the cycle?
Standing water after a cycle almost always means a drain problem. Start with the filter — it is the quickest and easiest thing to check. If the filter is clean, check the drain hose position and then the pump.
Can I force the water out of my LG washer manually?
Yes — open the drain filter access door and slowly remove the cap. Water will flow out into a pan. If you have a large amount of water, keep a large container ready and re-tighten the cap between refills to empty in stages.