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ErrBase

LG Dishwasher OE Error Code: Drain Fault

Quick Answer

OE on an LG dishwasher means the drain pump ran but water level in the tub did not drop to the expected level within the timeout window. The leading cause is a clogged mesh filter. LG's mesh filter is at the rear bottom of the tub and requires a twist to remove -- it is different from the pull-up filter style found on Whirlpool and Bosch models.

OE on an LG dishwasher means the drain pump ran but water level in the tub did not drop to the expected level within the timeout window. The leading cause is a clogged mesh filter. LG's mesh filter is at the rear bottom of the tub and requires a twist to remove -- it is different from the pull-up filter style found on Whirlpool and Bosch models. After cleaning the filter, the next suspects are a kinked drain hose, a blocked air gap (if installed), and then the drain pump itself. Pump winding resistance should read 8-15 ohms.

LgDishwasherSeverity: moderate88% DIY Success
Time to Fix
15–60 min
Difficulty
beginner
Parts Cost
$32 – $52
Tools Needed
Multimeter, Flathead screwdriver

What Does the OE Code Mean?

OE means the drain timed out. LG's mesh filter at the rear of the tub is the first thing to clean. Twist counterclockwise to remove it. If clean, check the drain hose and then test the pump at 8-15 ohms.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Clogged mesh drain filter at the rear bottom of the tub40%
Kinked or clogged drain hose24%
Blocked air gap or garbage disposal connection14%
Food debris blocking the pump impeller12%
Failed drain pump motor winding10%

Symptoms You May Notice

  • OE displayed at end of drain cycle
  • Standing water in the bottom of the tub after cycle ends
  • Drain pump audible but water not clearing
  • Cycle aborts before completion

Can you reset a Lg dishwasher to clear the OE code?

After cleaning the filter or fixing the drain path, hold Cancel/Drain for 3 seconds to manually run the drain cycle and confirm the standing water clears. The OE code will not return if the drain path is clear. For a full reset, unplug for 60 seconds.

Tools Required for Diagnosis

MultimeterFlathead screwdriverNeedle-nose pliers

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Open the dishwasher and locate the mesh filter cylinder at the

Open the dishwasher and locate the mesh filter cylinder at the rear bottom of the tub. Unlike Whirlpool or Bosch, LG's filter twists counterclockwise to unlock and lifts straight out. Remove it and rinse under running water until clear.

2

Trace the drain hose from the back of the dishwasher to the

3

Disconnect power

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
Drain Pump4681ED1003A · $32–$52

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPAIR
Estimated Cost: $42 (Parts) vs $700 (New Machine)

Frequently Asked Questions

How is LG's drain filter different from other brands?
LG places the mesh filter at the rear of the tub floor and it twists counterclockwise to remove. Whirlpool and many other brands use a central pull-up filter design. The LG filter tends to accumulate more debris near the rear spray arm and needs cleaning every 1-2 months with heavy use.
What does 8-15 ohms mean for the LG drain pump test?
A healthy LG drain pump motor winding reads between 8 and 15 ohms on a multimeter. An OL (open loop) reading means the winding is broken. A reading near zero means an internal short. Either result means the pump needs replacement.

Related Lg Dishwasher Error Codes

Code: AELG Dishwasher AE Error Code: Leak DetectedCode: IELG Dishwasher IE Error Code: Water Inlet FaultCode: LELG Dishwasher LE Error Code: Motor Locked

Same Fix Works on These Brands

Lg shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

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Models Known to Experience OE Errors

This repair applies to most Lg dishwashers with this error code. Common model numbers include:

LDFN4542D, LDF5545ST, LDFS5788S, LDP6763ST, LDFN3432T, LDFN4542S, LDFN4542W

Last verified for technical accuracy on March 14, 2026