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Source-backed error-code guide

Reviewed

LG Dishwasher AE / E1 / FE Error Code

AE/E1/FE points to a water-safety condition. Homeowner checks should stay with door closure, level/installation context, detergent type, visible leaks, and stopping before internal leak-sensor or valve work.

Applies to LG dishwasher

What the appliance detected

Detected condition

LG associates this family with leakage, overfilling, or water supplied beyond the standard amount.

What may contribute

Possible causes

  • Oversudsing from dishwashing liquid or incorrect detergent.
  • The dishwasher is not level or the door is not aligned or sealed correctly.
  • A leak is detected or water exceeds the standard amount.
  • Water has entered an area that should remain dry, such as the Heat Dry blower context LG describes.

Start conservatively

Safe preliminary checks

Work in order and stop whenever a step is not supported by the documentation for your model.

  1. Record the exact display and stop for active leaking

    • Photograph or write down whether the display shows AE, E1, FE, EI, or RE.
    • If water is leaking onto the floor or near electrical parts, stop use, shut off the water supply if safe, and request qualified help.

  2. Check external causes before another cycle

    • Confirm the door closes fully and the gasket appears seated without forcing or adjusting the door.
    • Confirm only automatic dishwasher detergent was used, not hand dishwashing liquid.

  3. Use only safe installation observations

    • Look for obvious out-of-level placement or visible obstruction at the door without moving or uninstalling the dishwasher.
    • If the code remains, request service rather than attempting leak-sensor, valve, blower, or internal diagnosis.

Actions not recommended

  • Do not keep running cycles with a possible leak or overfill condition.
  • Do not remove panels, access the leak sensor, replace valves, or test internal wiring.
  • Do not tilt, uninstall, or move a built-in dishwasher unless qualified to do so safely.

When to stop and request service

  • Request service for any active leak, recurring AE/E1/FE family code, visible door-alignment issue, or suspected overfill.
  • Use a qualified installer when leveling or installation correction is needed.
  • Stop immediately for water near electrical parts, flooring damage, or any internal access requirement.

Documented source

Official information reviewed

Our summary is based on manufacturer support material and stays within the limits of that material.

Source reviewed by Appliance Help HQ: August 17, 2026.

Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by LG.

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