LG WM3900HWA
LG · Washer
The LG WM3900HWA is a widely serviced washer. Confirm your unit with the model tag: Door frame sticker when the door is open; backup tag on the rear panel. This guide covers the most common WM3900HWA error codes, compatible parts, and the first checks techs run before ordering components.
Error codes on WM3900HWA
| Code | Meaning | Guide |
|---|---|---|
| OE | Drain error | Model fix →·Brand code → |
| UE | Unbalanced load detected during spin | Model fix →·Brand code → |
| DE | Door lock error | Model fix →·Brand code → |
| LE | Motor locked | Model fix →·Brand code → |
Service note
Drain filter is behind the lower kick panel — have towels ready before opening.
Compatible replacement parts
LG Washer Drain Pump
MPN: 4681EA2001T
$31.99
LG Washer Door Lock
MPN: EAU59551204
$27.99
FAQ
What are common error codes on the LG WM3900HWA?
The most common codes include: OE, UE, DE, LE.
Where is the model number on a LG washer?
Check the door frame, rear panel, or inside the door opening. The model tag is usually a silver or white sticker.