On covered LG front-load products, AE or E1 can indicate that leak protection detected water where it should not be.
What AE / E1 means
On covered LG front-load products, AE or E1 can indicate that leak protection detected water where it should not be.
What you may notice
- The display or status light shows AE / E1
- The appliance stops and may drain
- Water may be visible nearby
- A leak indicator or warning appears
Most likely causes
- 01A hose or fitting is leaking
- 02A filter or cap is not sealed
- 03Excess detergent caused foam
- 04Water reached a base safety tray
- 05A valve, seal, or sensor needs service
Safe checks, in order
Start with the simplest non-invasive check. Stop as soon as the error clears; repeated resets can hide a condition without correcting it.
Stop water and power
Close the supply valve if water is still entering and disconnect power from a dry location.
Inspect visible connections
Check hoses, caps, seals, dispensers, and the floor without moving a built-in appliance.
Correct obvious setup issues
Reseat only user-serviceable filters or caps and remove excessive detergent residue.
Do not keep testing
If the base or internal area is wet, leave the appliance off for service.
Know where to stop
Never step into water to unplug equipment. Use the breaker when water is near a cord or receptacle.
When to call a technician or support
Call for service for an internal leak, repeated base-tray warning, or any leak that cannot be traced to an external fitting.
When you call, have the exact product model, the complete code or light pattern, and when it appeared.
Where this information came from
We use the manufacturer's current published guidance as the starting point, then organize it into a safer, beginner-friendly sequence.
LG USA Support — front-load washer error-code list Source last checked August 18, 2026. Manufacturer instructions and model manuals take priority over this independent summary.