LG Dishwasher Error Codes
LG dishwashers spell out most faults as a short code on the display — OE, IE, LE, AE, and more — and every code listed below is a real, documented LG fault with what it means and what's worth checking before you book a service call.
How LG shows a fault code
On the great majority of LG dishwashers built in the last decade or so — the LDF, LDP, and LDT-style lineups with a digital control panel — the code appears directly on the display as two letters, occasionally with a lowercase second character like tE or bE to keep it visually distinct from a similarly-shaped code. That's the version this page documents.
A smaller number of older or simpler LG models use indicator lights instead of a text display and signal the same underlying faults by blinking a pattern rather than spelling out letters. Because the blink mapping isn't identical across every LG dishwasher generation, don't guess from a generic blink-code chart — check the use-and-care manual for your specific model number, or look it up on LG's support site, if your unit doesn't show letters directly. The Blinking Lights With No Error Code Shown page covers what to do if you can't match a light pattern to anything on this list.
Every LG code
| Code | What it means | Severity |
|---|---|---|
| OE | Outlet/drain error — water isn't draining out of the tub the way it should | Medium |
| IE | Inlet/fill error — water didn't reach the expected level during fill | Medium |
| LE | Wash motor (circulation pump) error | High |
| AE | Leak detected inside the dishwasher, float switch tripped (also shown as E1) | High |
| tE | Temperature sensor reading outside the expected range | Low |
| HE | Heater fault — water isn't being heated properly | Medium |
| PE | Water level sensor fault | Medium |
| bE | Bubble (oversuds) error, almost always a detergent issue | Low |
No code showing — just a problem?
If your LG dishwasher is misbehaving but the display isn't showing any of the codes above, these symptom pages start from what the unit is actually doing instead of from a code:
- Dishwasher Not Draining
- Dishwasher Not Filling With Water
- Dishwasher Leak Detected / Water Under the Unit
- Dishwasher Not Heating, Drying, or Sanitizing
- Dishwasher Stuck or Stopped Mid-Cycle
- Dishwasher Won't Start
- Dishwasher Blinking Lights With No Error Code Shown
How these pages are checked
Each LG code above is verified against LG's own USA support library — either a code-specific help article or the consolidated LG Dishwasher Guide to Error Codes — before it's published here, and each code page links back to the exact source used. No LG fault is listed on this site based on a guess or a symptom match alone.