LG · Dishwasher Serious

AE — Leak Detected (Aqua Error)

AE (Aqua Error) means the leak sensor in the base pan detected water — the dishwasher shut down and is pumping to prevent a flood.

Keep using it?
Limited use only
DIY difficulty
Moderate
Typical cost
$25-60
Verified against
lg.com ↗

The fix

Leak / flood sensor (base pan float)

Leak detected in base pan

$25-60 moderate difficulty 75 min Tools: screwdriver, nut driver, towels

Diagnose first: Real leak from a hose, pump seal, or sump gasket trips the float; dry the pan and inspect plumbing before replacing the sensor.

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How to fix it

  1. Unplug the dishwasher and pull it out to inspect the base pan.
  2. Dry the base and run a short cycle, watching for the leak source.
  3. Tighten hose clamps and inspect the pump seal and door gasket.
  4. Replace the leaking component.

Why it happens

Typical signs: Dishwasher stops and pumps continuously · Water under or around the unit · AE on the display

  • Leak at a hose or pump seal A worn pump seal, loose hose clamp, or cracked fitting drips into the base pan.
  • Door gasket leak A damaged door seal lets water escape the tub.
  • Faulty float/leak sensor Rarely, a bad sensor false-triggers.

Other parts sometimes needed

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • LG Dishwasher Door Gasket / Seal Common replacement
    Amazon →

Related repair guides

Dishwasher Leaking From the Bottom of the Door →

More LG dishwasher codes

2H 2H — Delay-start indicator (2 hours remaining) bE bE — Bubble / oversuds error CE CE — Motor / communication error CL CL — Child lock / control lock active CR CR — Test / calibration mode E1 E1 — Leak detected (newer display label)

All LG codes → All dishwasher codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: lg.com.