LG Washer Error Code PF: Meaning and Fix

How PF appears on a LG washer display.

Main control board for an LG washer, a part commonly involved in the PF 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 PF

Power outage mid-cycle
Loose plug or worn outlet
Tripped breaker

How to fix it

Press Power to turn the washer off and on.
Unplug it for a minute and restore power.
Restart the cycle from the beginning.
Check the outlet and breaker if PF returns without an outage.

Parts you may need

Part	Part no.	Buy
Main control board	EBR79909506	Find 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

Does PF damage the washer?

No, it simply flags the interruption.

Why does PF come back?

A flaky outlet or board can cause repeated drops.

Will my wash restart on its own?

Not usually; start it again.

Other LG washer codes

Drain pump for an LG washer, a part commonly involved in the OE code

OEDrain error

Water inlet valve for an LG washer, a part commonly involved in the IE code

IEWater inlet error

Generic LG washer image (main control board); the UE code is not tied to one single part

UEUnbalanced load error

Door lock assembly for an LG washer, a part commonly involved in the dE code

dEDoor not closed error

Door lock assembly for an LG washer, a part commonly involved in the dE2 code

dE2Door closed but not locked

Drive motor for an LG washer, a part commonly involved in the LE code

LELocked 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.