OE
LG Washing Machine
Urgency
⚡ Medium
Attend to soon
Repair difficulty
🔧 Competent DIY
Some experience required
Diagnosis

What this error means

Drain error — the washing machine cannot empty the water from the drum

The OE error means the machine has failed to drain within the expected time. On LG washing machines this is most commonly caused by a blocked pump filter, a kinked or obstructed drain hose, or a foreign object jamming the pump impeller. A failing drain pump motor will also produce this code.

⚠️
For information purposes only. Always consult a qualified engineer before attempting repairs. 🔌 Unplug your appliance before any inspection or repair.
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What to try first
Fix time
5–10 minutes
🔧
Difficulty
Competent DIY
🏠
Appliance
Washing Machine

What you'll need first

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Step-by-step

1
Unplug the machine before doing anything
This is essential for your safety before touching any part of the machine
2
Open the small access flap at the bottom front and place a towel and shallow tray underneath
Water will escape when the filter is opened so prepare before turning the cap
3
Slowly turn the filter cap anti-clockwise to release trapped water in a controlled trickle
Turning too fast causes a sudden rush of water that will flood the floor
4
Unscrew the cap fully and clear all coins, hair, lint, and debris from the filter and the housing cavity
Even partial blockages are enough to prevent the pump from draining
5
Check the drain hose at the rear for kinks and confirm the standpipe insertion is no more than 15 cm deep
A hose inserted too far creates a syphon that prevents drainage
6
Refit the filter firmly and run a Spin or Drain programme to test
This confirms whether the blockage has been fully cleared
Diagnostic

Symptoms to look for

  1. Water visible in the drum at the end of a cycle
  2. Machine stops mid-programme with water remaining in the drum
  3. Straining, gurgling, or loud humming from the pump area during draining
  4. OE displayed near the end of a wash or rinse phase
Step-by-step repair guide

How to fix it

Time 20–40 minutes
Skill Competent DIY
Prepare for water spillage

Unplug the machine — this step is not optional. Lay several old towels on the floor in front of the machine and get a shallow baking tray or wide bowl ready. Even after a failed drain attempt there can be 3 to 5 litres of water trapped inside.

Never remove the pump filter with the machine plugged in. The pump motor can activate unexpectedly if power is present, causing a sudden uncontrolled release of hot water.
Access and drain through the filter

At the bottom front of the machine, open the small flap or kick-strip panel using a tab or flat coin. Place your tray directly underneath the round filter cap. Turn the cap anti-clockwise by a quarter turn only to release water as a controlled trickle. Empty the tray as needed, then unscrew the cap fully and pull the filter out.

LG machines stopped mid-wash retain hot water. Allow a few minutes to cool before draining if possible.
Clean the filter and housing

Rinse the filter under warm running water and scrub the mesh holes with an old toothbrush to clear lint and debris. Reach carefully into the filter housing cavity and feel around the pump entrance for any trapped objects.

Feel slowly and carefully — sharp objects such as hair grips, coins, and small glass fragments can reach the pump housing and cause cuts. Always use a torch before inserting your fingers and use cut resistant gloves..
Check the pump impeller

Shine a torch into the filter cavity. At the back you should see the impeller — a small plastic fan. Try to rotate it gently with one finger. It should spin freely with light resistance. If stiff or completely seized, there is a blockage in the pump body or the impeller is broken.

A thin sock or small garment wrapped around the impeller is one of the most common causes of OE on LG machines — it is not visible from the filter side and requires the pump to be removed to clear it.
Inspect the drain hose

Trace the corrugated drain hose from the machine to the standpipe or sink. Straighten all kinks and bends. The hose end must be inserted no more than 15 cm into the standpipe and must not be sealed against the pipe walls — air must enter around the hose for drainage to work. The lowest point of the hose must be at least 60 cm from the floor.

A hose sealed too deeply into the standpipe creates a continuous syphon that tries to drain the machine during filling, eventually triggering OE repeatedly.
Run a drain programme

Refit the filter and tighten it firmly clockwise until it stops. Plug back in and select Spin Only. You should hear the pump activate within seconds and water should flow from the drain hose.

If the pump hums loudly but no water moves, there is still a blockage in the pump body that will require the pump to be removed for inspection.
Did this solve your issue?
Escalation

When to call an engineer

  • Pump impeller cracked or will not turn by hand after filter removal
  • Pump hums but produces no water movement — motor winding has failed
  • OE returns immediately after filter cleaning and hose check
  • Burning smell or scorch marks in the pump area under the machine
Common questions

Frequently asked questions

Can I drain the drum manually when OE stops the machine mid-cycle?
Yes — unplug the machine, place a tray under the filter panel, and very slowly unscrew the filter cap to drain water in a controlled flow. Have plenty of towels ready.
How often should I clean the LG pump filter?
LG recommends checking the filter at least monthly. With heavily soiled loads or pet bedding, check it every 2 weeks.
Why does OE appear even though I cleaned the filter recently?
A foreign object may have since passed through the drum and jammed the impeller, or the drain hose has developed a new kink. Check both before assuming the pump has failed.
Could a blocked filter damage the pump permanently?
Yes — running repeatedly with a blocked filter overloads the pump motor and can burn it out. Always clear OE before running another cycle.

🎯 What is likely causing this fault?

🧹
Blockage (filter/hose) 50%
⚙️
Pump failure 30%
📡
Pressure sensor confusion 10%
💡
Wiring 10%

⚠️ Estimates based on common faults — not a guaranteed diagnosis. Always verify before ordering parts.

🔩

Parts you may need

Enter your model number to filter results to your exact machine

Usually found on a label inside the door frame or on the back panel of the machine.

No model entered
Part Approx. UK Cost Find it
Drain Pump £15 - £30
Drain Filter £7- £10
Drain Pump £20 - £40
Drain Filter £10 - £20

ℹ️ Prices are approximate. Always check the part number matches your model before ordering. Not sure of your model number? Find out how to locate it here.