Error Code OE

Drain Error — machine does not drain down to normal level within drain timeout

What This Means

Filter assembly blocked; Drain hose kinked or blocked; Inner hole of drain case blocked; Air gap clogged; Knockout plug of garbage disposal not removed; Washing motor locked (pump casing failure); Wiring connection disconnected (YL3 connector); Drain motor impeller stuck; Controller (main PCB) damaged

How to Fix

1. 1

   Check if connector YL3 is connected to main PCB; if disconnected, reconnect wire

2. 2

   Check if filter assembly is clogged; if yes, clean the filter

3. 3

   Check if air gap is blocked; if yes, clean the air gap

4. 4

   Check if knockout plug of garbage disposal has been removed; if not, remove it

5. 5

   Check if outer drain hose is blocked or frozen; if yes, remove cause of kink or block

6. 6

   Check if inner hole of drain case is blocked; if yes, repair or replace drain motor

7. 7

   Measure drain pump resistance — should be 4-5 ohm; if out of range, replace drain pump

8. 8

   Measure voltage between YL3 pin1~2~3 — should be 12V AC ±15%; if out of range, replace main PCB

9. 9

   If motor RPM is increasing but drain fails, replace pump casing assembly

10. 10

    If all checks fail, replace main PCB assembly

This Error Applies To

LG LDT7808ST Series Dishwashers (2017) (2017–present)