LG Dishwasher OE Error
What it means
The OE error on an LG dishwasher is a drain error (Outlet Error) — the water didn't drain out within the expected time. It's most often caused by a clogged filter, a blocked or kinked drain hose, or a clogged air gap, all of which you can usually clear yourself. Less commonly it's a faulty drain pump.
The bottom line on the OE error
OE on an LG dishwasher is a drain error, and the real culprit is usually a clogged filter, a kinked drain hose, or a clogged air gap — all things you can clear yourself. Do not just cancel and restart; the code comes straight back until the blockage is removed.
Start cheap: run Cancel & Drain, then clean the filter, flush the air gap, and check the hose for kinks — that fixes most OE errors for free. Only if everything is clear and OE persists is the drain pump likely at fault — a repair best left to a technician.
OE snapshot
Our own at-a-glance triage of the OE error, from the verified data on this page. See error-code rankings → · How we score →
Common causes of the OE error
- Dirty or clogged drain filter trapping food residue
- Clogged drain hose (food particles, grease, debris)
- Kinked drain hose, or one installed too high or too long
- Clogged air gap at the sink
- Garbage-disposal knockout plug left in place
- Faulty drain pump (less common)
Which LG dishwashers get the OE error
OE (Outlet Error) appears across LG built-in dishwashers, including the popular front-control and top-control lines (LDF, LDT, LDP, and LDFN series). An OE on the very first cycle after installation almost always points to a drain-hose install issue (kinked, too high, too long, or a garbage-disposal knockout plug left in place) rather than a failed part.
How to fix the LG Dishwasher OE error
- 1Run Cancel & Drain firstActivate the CANCEL & DRAIN function (on many LG models, press and hold two buttons together — for example DELICATE + DUAL CONTROL) to pump out standing water before you start cleaning.
- 2Turn off power before reaching insideFor safety, switch off the dishwasher at the breaker before clearing the filter or hoses.
- 3Clean the drain filterRemove the bottom rack, take out the filter assembly at the base of the tub, and clear away any food residue and debris. Rinse it and reseat it firmly.
- 4Clean the air gapLook down into the air gap on the sink, remove any debris with a brush or toothpick, then pour hot water through it (a turkey baster works well) to flush it clear.
- 5Check the drain hoseLook under the sink where the drain hose meets the garbage disposal and verify it isn't kinked or clogged. Confirm the disposal's knockout plug was removed at installation.
🧰 When to call a professional
If the filter, air gap, and drain hose are all clear but OE keeps appearing, the drain pump has likely failed and the unit will need a repair service. Replacing the pump means accessing the base of the dishwasher and is best handled by a qualified technician.
LG OE vs Samsung OE (1E) vs LG OE: how they compare
How this code stacks up against related error codes for difficulty, urgency, and cost.
| LG OE | Samsung OE (1E) | LG OE | |
|---|---|---|---|
| DIY difficulty (1–5) | 2 | 3 | 2 |
| Urgency (1–5) | 3 | 3 | 2 |
| Typical cost | $$ | $$ | $ |
How much does it cost to fix the OE error?
| DIY (clean filter, air gap, clear/reroute drain hose) | $0 |
| Drain pump (DIY part) | $40–$120 |
| Professional drain-pump replacement (part + labor) | $150–$350 |
Repair or replace?
OE is overwhelmingly a clog or installation fix, so cleaning is free and resolves most cases. Even a failed drain pump is a modest repair relative to a new dishwasher, so repair is the right call unless the machine is old and facing other failures. Prices vary by model and region.
Common replacement parts for the OE error
| Drain pump / motor | $40–$120 | Part only; the usual culprit when filters and hoses are all clear | |
| Drain hose | $15–$50 | If kinked, cracked, or improperly routed; keep total run under 12 ft with no extension | |
| Drain filter assembly | $15–$45 | Cleaning usually suffices; replace only if damaged |
Prices are typical retail ranges and vary by model and supplier — always confirm the exact part number for your appliance before buying.
LG OE error — FAQ
＋ − What does OE mean on an LG dishwasher?
OE is a drain (Outlet Error) code — the dishwasher couldn't pump the water out in time, usually due to a clogged filter, drain hose, or air gap.
＋ − How do I fix the OE error on my LG dishwasher?
Run Cancel & Drain to empty standing water, then clean the drain filter, clear the air gap, and check the drain hose for kinks or clogs. That resolves most OE errors.
＋ − Why is my LG dishwasher not draining?
The most common reasons are a clogged filter, a blocked or kinked drain hose, a clogged air gap, or a garbage-disposal plug left in place. If all are clear and OE persists, the drain pump may have failed.
Sources & manufacturer references
This guide is independently written and not affiliated with LG. Always unplug appliances before servicing and follow your model's manual. Error codes and steps can vary by model — when in doubt, consult a qualified technician.