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LG Washer Error Code OPn: Meaning and Fix

OPn
How OPn appears on a LG washer display.
Detergent dispenser drawer for an LG washer, a part commonly involved in the OPn code
Sears PartsDirect product image (LG OEM part 3891ER2003A)

Reading the washer display

On a washer the code appears on the digital display or as a pattern of flashing cycle lights. Note it exactly, including any dashes or sub-codes, then unplug the washer for five minutes and run a short drain cycle to see whether it returns. LG codes are short letter pairs; a capital O differs from a zero.

LG appliances show short alphabetic codes (OE, IE, UE on washers, Er plus letters on refrigerators) and, on ThinQ models, a Smart Diagnosis option. LG also builds many Kenmore Elite units. The codes apply to model numbers such as LDF7774ST, LDT5678SS and DLEX3900B; check the label on your unit to confirm yours.

What causes OPn

How to fix it

  1. Pull out the drawer and check for obstacles.
  2. Wipe the rails clean.
  3. Push the drawer in fully and restart.
  4. Request service if it persists.

Parts you may need

PartPart no.Buy
Detergent dispenser drawer3891ER2003AFind part

Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.

Questions

Is it a leak?

No.

Can I clean the drawer?

Yes.

Will it hold the cycle?

Yes.

Other LG washer codes

Drain pump for an LG washer, a part commonly involved in the OE codeOEDrain errorWater inlet valve for an LG washer, a part commonly involved in the IE codeIEWater inlet errorGeneric LG washer image (main control board); the UE code is not tied to one single partUEUnbalanced load errorDoor lock assembly for an LG washer, a part commonly involved in the dE codedEDoor not closed errorDoor lock assembly for an LG washer, a part commonly involved in the dE2 codedE2Door closed but not lockedDrive motor for an LG washer, a part commonly involved in the LE codeLELocked motor error

Sources

Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.

Applies to models including WM3400CW, WM4000HWA, WT7300CV, WM3600HWA, WKEX200HBA.