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LG Washer Error Code SE: Meaning and Fix

SE
How SE appears on a LG washer display.
Main control board for an LG washer, a part commonly involved in the SE code
Sears PartsDirect product image (LG OEM part EBR79909506)

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 SE

How to fix it

  1. Power down and unplug the washer.
  2. Wait 10 seconds and plug it back in.
  3. Run a short cycle.
  4. If SE repeats, request service.

Parts you may need

PartPart no.Buy
Main control boardEBR79909506Find 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

Which sensor is SE?

LG does not specify; a technician narrows it down.

Can I reset SE?

Only temporary glitches clear.

Is it common?

Not very.

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.