On a supported LG washer, OE, E03 or E21 means the washer cannot drain the used water. Let hot water cool, use the emergency drain tube if provided, and clean the pump filter. Then straighten the drain hose and verify it is not frozen, clogged or installed too high.
What this covers
- LG washers displaying OE, E03 or E21
What it does not cover
Try in this order
0 of 4 completedConfirm OE, E03 or E21 on the exact model
ReversiblePhotograph the complete display, record the model tag and note the cycle stage. Similar-looking codes can mean different things on another product line.
Check the condition named by the code
ReversibleLet hot water cool, use the emergency drain tube if provided, and clean the pump filter.
Correct the remaining user-serviceable cause
ReversibleStraighten the drain hose and verify it is not frozen, clogged or installed too high.
Run one controlled verification
ReversibleRun Spin Only or Drain and confirm the tub empties promptly. A clear hose and filter with a silent, noisy or nonworking pump requires service.
Evidence ledger
Sources behind this answer
Exact questions
Common questions about “LG washer OE, E03 or E21 code”
What does OE, E03 or E21 mean on a LG washer?+
It means the washer cannot drain the used water.
Can I clear OE, E03 or E21 by resetting the washer?+
A restart may clear a stored display only after the underlying condition is corrected. Repeatedly resetting without correcting the cause is not a repair.