Error Code OE

Drain Error — dishwasher does not reach normal drain level

Also displayed as: OE

What This Means

Filter assembly blocked; Drain hose kinked or blocked; Inner hole of drain case blocked; Air gap clogged; Garbage disposal knockout plug not removed; Washing motor locked or faulty; Wiring connection fault

How to Fix

1. 1

   Step 1: Remove and clean the filter assembly (coarse filter + fine filter + cylindrical filter).

2. 2

   Step 2: Check drain hose for kinks, blockages, or freezing. Remove cause of kink or block.

3. 3

   Step 3: Check the air gap fitting under the sink; clean if clogged.

4. 4

   Step 4: If connected to a garbage disposal, verify the knockout plug has been removed from the disposal inlet.

5. 5

   Step 5: Check connector YL3 at main PCB — reconnect if disconnected.

6. 6

   Step 6: Measure drain pump motor resistance at YL3 — should be 4-5Ω. If out of spec, replace drain motor.

7. 7

   Step 7: Measure voltage at YL3 pin1~pin2~pin3 — should be 12V AC ±15%. If absent, replace main PCB assembly.

8. 8

   Step 8: Inspect drain motor impeller for debris causing lock-up. Clean or replace drain motor.

9. 9

   Step 9: Check inner hole of drain case for blockage. Repair or replace drain motor if inner hole blocked.

10. 10

    Step 10: If washing motor is locked or causing drain issue, replace pump casing assembly.

This Error Applies To

LG LDF5545SS Series Dishwashers (2017) (2017–present)