LG OE Error: Washer Not Draining / Drain Failure
Diagnose LG washer OE error (drain failure).
Drain error. The electronic main PCB detects that water did not drain out of the outer wash tub within 10 minutes of drain pump activation.
Probable Causes
Debris filter coin trap clogged with pet hair, lint, coins, or bra underwires.
External drain hose inserted too deep into household standpipe, causing siphoning.
Defective drain pump motor (mechanical failure of magnetic rotor).
Diagnostic & Testing Steps
- •Washer stops at 11 or 9 minutes remaining on cycle, chimes melodic error song, and shows OE.
- •Glass door remains locked with water level visible halfway up door gasket.
- •Clothes remain dripping wet inside the motionless drum.
Tools & Equipment Required
- ✓Phillips #2 Screwdriver & 10mm SocketRemove lower front panel and bottom pump bracket fasteners.
- ✓Needle-Nose PliersExtract obstructions from coin trap and release spring clamps on drain hose.
- ✓Shallow Catch Pan & Absorbent SpongeCollect residual water during front filter extraction.
- ✓Inspection FlashlightInspect corrugated drain hose for internal kinks or lint blockages.
Fast Reset Sequence: LG Electronic Hard Power Reset
Before unmounting panels or beginning diagnostic procedures, attempt this manufacturer reset to clear transient microcomputer lockouts:
- 1.Press Power to switch the machine off.
- 2.Unplug the unit from the electrical wall outlet.
- 3.While completely disconnected, press and hold Start/Pause for 5 seconds, followed by holding Power for 5 seconds.
- 4.Plug unit back in, select Drain/Spin mode, and verify that the control relay clicks properly.
- 1
Step 1: Empty Tub Using Lower Emergency Drain Tube
[ ] DoneOpen lower left access flap, remove black stopper plug from drain hose, and catch water in shallow container.
Verification:Water drains completely; tub door unlocks automatically. - 2
Step 2: Clean Coin Trap Filter Screen and Housing
[ ] DoneTwist round filter knob counterclockwise, extract filter, clean debris under running faucet, and inspect impeller.
Verification:Cavity is free of debris; impeller blades rotate smoothly with distinct magnetic resistance. - 3
Step 3: Execute Diagnostic Spin Only Cycle
[ ] DonePress Power, do not select cycle knob, press Spin Speed to High, and press Start. Washer will run pump and spin.
Verification:Drain pump runs quietly, water empties instantly, and drum accelerates up to 1200+ RPM without OE error.
Repair Solutions
Open front bottom access door, drain tub via small black hose, and clean the pump filter plug.
Inspect drain hose at rear to ensure it is not crushed against the drywall.
Test drain pump motor coil with a multimeter (standard 120V motor reads 12 to 16 Ω).
Frequently Asked Questions
How often should I clean the drain pump filter on an LG washer?
LG recommends cleaning the lower debris coin trap at least once every month (or bi-weekly if you have shedding pets).
Why does my LG washer pump vibrate and make loud buzzing sounds?
A foreign object like a coin or hairpin is lodged against the rotating impeller wheel, or the magnetic rotor bearing is worn.