LG Washers2022–present

Error Code OE

Drain Error

Moderate

Address soon - your appliance may not work properly

What This Means

Not fully drained within 10 minutes; Drain pump connectors loose or disconnected at main PCB; Water level reading above 250 when it should drain; Air dome or pressure hose clogged; Drain pump motor resistance outside 10-20 Ω range; Voltage at PCB connectors (NA4-1 BN and BL3-1 BK) not 120 VAC ±5%; Kinked or clogged drain hose; Frozen drain hose; Foreign objects clogging drain pump filter; Foreign objects caught in pump impeller

How to Fix

  1. 1

    Confirm OE is displayed

  2. 2

    Check connectors at main PCB and drain pump — if loose or disconnected, reconnect or repair

  3. 3

    Press WASH/RINSE and DELAY START simultaneously — is water level below 250? If yes, proceed to pump resistance check

  4. 4

    If water level not below 250, check air dome and pressure hose for clogging; check pressure switch (test #2 in load test mode)

  5. 5

    Measure drain pump motor resistance: expected 10-20 Ω (pins 1-2). If outside range, replace DRAIN PUMP ASSEMBLY

  6. 6

    Check voltage between PCB connectors NA4-1 BN and BL3-1 BK: expected 120 VAC ±5%. If not present, replace MAIN PWB ASSEMBLY

  7. 7

    To manually activate drain pump: power on washer, press SPIN SPEED to select LOW, press START/PAUSE — pump energizes at start of spin cycle

  8. 8

    Always check external causes: kinked/clogged drain hose, frozen drain hose, debris in pump filter, foreign objects in impeller

This Error Applies To

LG WM5500H Series Washers (2022) (2022–present)

Service manual exact match: WM5500HBAService manual exact match: WM5500H*AService manual exact match: WM5500HVAService manual exact match: WM5500HWA

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