LG WM4000HBA OE error code
Error code: OE
OE points to a washer drain problem: the washer is not draining normally or detects that water remains when it should be gone.
Common causes
- Kinked or blocked drain hose
- Clogged drain pump filter
- Drain hose installed too high or pushed too far into the standpipe
- Drain pump or service issue after user-level checks
Fix steps
- Turn the washer off before checking the drain area.
- Drain remaining water through the small drain hose if needed.
- Remove and clean the drain pump filter, then reinstall it securely.
- Check the drain hose for kinks, clogs, or incorrect standpipe placement.
- Run a short test cycle; request service if OE returns after the manual checks.
Sources
LG Washer OE Error Code support page; LG WM4000HBA Owner's Manual, pages 48-49 and 55-56