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
Confirm OE is displayed
- 2
Check connectors at main PCB and drain pump — if loose or disconnected, reconnect or repair
- 3
Press WASH/RINSE and DELAY START simultaneously — is water level below 250? If yes, proceed to pump resistance check
- 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
Measure drain pump motor resistance: expected 10-20 Ω (pins 1-2). If outside range, replace DRAIN PUMP ASSEMBLY
- 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
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
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)