WM4000HWA OE error
Your LG WM4000HWA is showing OE. Before replacing parts, confirm the model tag matches WM4000HWA: Open the door and check the rim or door frame; the silver sticker is also on the rear panel near the top. On this LG washer, OE means Drain error — water not draining from tub. The steps below follow the field-service order for the WM4000HWA platform — not the generic LG OE page. Parts listed below are confirmed compatible with WM4000HWA. If the code cleared after a reset but returned mid-cycle, treat that as a confirmed fault rather than a one-time glitch.
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Fix steps
- Verify the model tag reads WM4000HWA — Open the door and check the rim or door frame; the silver sticker is also on the rear panel near the top.
- Reset OE: unplug the washer or switch off the breaker for 5 minutes, then restore power.
- Check inlet hoses, drain hose routing, and the door seal for obstructions or leaks before assuming an internal component failed for OE.
- Parts listed below are confirmed compatible with WM4000HWA.
- Run a test cycle after repair. If the code returns, use the compatible parts below or the full brand code guide.
Repair guidance is for informational purposes only. We do not guarantee that any fix will resolve your issue, and you assume all risk when following these steps. Terms & disclaimer
FAQ
What does OE mean on a LG WM4000HWA?
Drain error — water not draining from tub.
How do I reset OE on a WM4000HWA?
Unplug the washer or switch it off at the breaker for 5 minutes, then restore power and restart. If OE returns on the WM4000HWA, the underlying fault is still present.
What part do I need for WM4000HWA OE?
Start with the WM4000HWA-compatible parts listed below. OE often points to a failed component on this LG washer.
Is OE on the WM4000HWA easy to fix?
Many owners fix this themselves with basic tools. Start with the reset and steps above, then check compatible parts below.

