ErrorCodeDoctor
LG · Dishwasher

LG Dishwasher OE error code

Difficulty: Easy · Cost: $0–$80 · Duration: 15–20m

The OE error means your LG dishwasher is not draining properly. This is one of the most common dishwasher errors and is almost always caused by a clogged filter, a kinked drain hose, or a blocked air gap. New installations can also trigger OE if the garbage disposal knockout plug was not removed before connecting the drain hose. Most causes are easy to check and fix yourself without a technician.

Common causes

  • Dishwasher filter is clogged with food debris
  • Drain hose is kinked, pinched, or blocked under the sink
  • Air gap or garbage disposal connection is blocked with debris
  • New garbage disposal was installed without removing the knockout plug for the dishwasher drain
  • Drain pump is faulty or obstructed

How to fix it

  1. 1

    Remove and clean the dishwasher filter — take out any food debris and rinse it thoroughly

  2. 2

    Run an empty HEAVY DUTY or NORMAL cycle with no dishes or detergent to flush and test the drain

  3. 3

    Check under the sink for the drain hose — look for kinks, pinching, or anything pressing against it and straighten it out

  4. 4

    Check the air gap on the sink countertop for debris and clean it out if blocked

  5. 5

    If a new garbage disposal was recently installed check that the knockout plug inside the disposal inlet was removed

  6. 6

    To force a drain only cycle press and hold DELICATE and DUAL CONTROL at the same time — the exact buttons vary by model

  7. 7

    Alternatively start any cycle, let it run for 45 seconds then power the unit off — the first 45 seconds of any cycle is drain only

  8. 8

    If OE clears clean the filter and spray arms thoroughly and run an empty cycle with a cup of vinegar or dishwasher cleaner

  9. 9

    If OE persists after all steps the unit requires a professional repair

Related LG Dishwasher error codes

1

bE

The wrong type of detergent was used or the dishwasher is not level

easy
2

CL

Child lock or control lock is active — buttons are disabled

easy
3

AE / E1

Water has leaked into the base of the dishwasher and activated the float switch

medium
4

IE

The dishwasher did not fill with enough water within 10 minutes

easy

OE error — frequently asked questions

What does the OE error mean on a LG dishwasher?

The dishwasher detected a drainage problem and cannot empty the water

What causes the OE error?

The OE error is usually caused by: Dishwasher filter is clogged with food debris; Drain hose is kinked, pinched, or blocked under the sink; Air gap or garbage disposal connection is blocked with debris; New garbage disposal was installed without removing the knockout plug for the dishwasher drain; Drain pump is faulty or obstructed.

Can I fix the OE error myself?

Yes — this is rated an easy fix that most people can do themselves, typically in 15–20m.

How much does it cost to fix the OE error?

Fixing the OE error on a LG dishwasher typically costs $0–$80, depending on parts and whether you do it yourself or hire a technician.

Is it safe to keep using my dishwasher with the OE error?

In most cases yes, but it's best to address the OE error soon — see the fix steps below to resolve it.