LG Dishwasher Error Code OE

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026

⚠ High Severity 🔧🔧 Moderate DIY

Drain error — dishwasher not draining

The most common cause of the OE error on a LG dishwasher is drain filter clogged with food debris (~50% of cases); start with: clean the drain filter.

💰 DIY cost: $0–$100 👨‍🔧 Pro cost: $150–$280 Save $150+ by doing it yourself

LG Dishwasher error code OE on the display panel — How the OE code appears on a LG dishwasher display

What Does Error Code OE Mean on a LG Dishwasher?

Drain error — dishwasher not draining.

OE fires when the control board does not sense the tub water level dropping to empty within the allotted drain window, typically monitored by the pump run cycle and level sensor. It indicates a drainage failure rather than a fill or leak fault. Standing water remains in the sump because flow is blocked or the pump isn't moving water. This differs from AE (leak/overflow at the base pan) — OE means water won't leave, not that water is escaping.

Models affected: LG dishwashers across most current front-control and top-control lines, including models such as LDFN4542S, LDTS5552S, and LDF5545ST

What owners report: Owners commonly report OE appearing at the end of a cycle with a pool of water left in the tub. A frequent quick win is simply pulling and rinsing the clogged drain filter, and on new installs the culprit is often the garbage disposal knockout plug never being removed.

What Causes Error Code OE?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

1

Drain filter clogged with food debris 50% of cases
2

Drain hose kinked or not high-looped 25% of cases
3

Garbage disposal knockout plug not removed 15% of cases
4

Drain pump failure 10% of cases

How to Fix LG Dishwasher Error Code OE

🔧🔧 Moderate DIY Est. time: 30–60 min

⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.

1

Clean the drain filter

Remove the bottom rack. Turn and lift out the filter assembly. Rinse under water, scrubbing debris with a soft brush. Reinstall firmly.
2

Check drain hose routing

The drain hose must have a high loop under the counter before connecting to the sink drain.
3

Check garbage disposal connection

If connected to a disposal, run the disposal before the dishwasher cycle.
4

Test the drain pump

If filter is clean and hose is clear, test the pump for operation.

🔩 LG drain pump ($50–$100)

How to Reset Error Code OE

After clearing the blockage, press Start to resume or restart cycle.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

Full LG dishwasher reset guide → Enter diagnostic mode → Symptom guide: Dishwasher not draining →

Did this guide fix your appliance?

When to Call a Professional

If the drain filter is clean and no drain hose obstruction exists, the pump needs professional testing.

Average professional repair cost for this issue: $150–$280

Related Error Codes

Leakage detected — water found in base tray

⚠ High Severity

Same Code on Other Brands

Error code OE appears on these other brands too. See every brand that shows OE →

Samsung Washing Machine OE

Drain failure — water not draining

GE Appliances Dishwasher OE

Drain error — not draining properly

Kenmore Washing Machine OE

Drain error (LG-platform Kenmore models)

Samsung Dishwasher OC

Over-level water error — too much water in the tub

Find Replacement Parts

Use these links to find the exact replacement parts for your LG Dishwasher:

🔩

Search PartSelect

LG Dishwasher repair parts

🔧

Search RepairClinic

Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More LG Dishwasher Error Codes

IE Water inlet error — not filling with water FE Water overflow — overfill protection triggered HE Heater failure — water not heating tE Temperature sensor failure LE Leakage detected — flood protection activated CE Motor/pump over-current error

Frequently Asked Questions

Can I keep using my LG Dishwasher when error OE appears? +

It is not advisable. The dishwasher may still power on, but running it while OE is active can worsen the drainage fault or damage related parts. Treat it as a soon-as-possible repair.

What most commonly causes OE on a LG Dishwasher? +

Across reported LG dishwasher repairs, the most frequent is drain filter clogged with food debris (50% of cases), drain hose kinked or not high-looped (25%), then garbage disposal knockout plug not removed (15%). Check them in that order before replacing any parts.

OE keeps coming back after a reset — what should I check next? +

A reset only clears the stored OE fault; if it returns, the drainage problem is still present. Move on to the physical checks — clean the drain filter, then check drain hose routing — since the code will reappear until the root cause is resolved. This is a moderate job — a multimeter and some disassembly are usually involved.

How much does it cost to fix LG Dishwasher error OE? +

A DIY repair typically runs $0–$100 in parts, versus $150–$280 for a professional service call, so handling it yourself saves around $150. Expect the work to take roughly 30–60 minutes.

Which LG Dishwasher models show error OE? +

OE is documented on LG dishwashers across most current front-control and top-control lines, including models such as LDFN4542S, LDTS5552S, and LDF5545ST. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

• LG Support — Help Library — official manufacturer documentation
• Our editorial & verification policy

Content verified against manufacturer service documentation. Last verified: June 10, 2026.

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