FixByModel
AE

LG AE: Leak detected — water in the base

The dishwasher's leak-protection (Aquastop-type) system detected water in the base pan, which raises a float switch and stops the cycle. LG shows this as AE (or E1 on some models).

May need a technician

By the FixByModel editorial team · Verified 2026-09 · Researched against manufacturer support & repair references (below)

Most likely causes

  1. Leaking or worn door gasket/bottom seal
  2. Loose hose or clamp, or a seeping inlet valve
  3. Excess detergent or rinse aid foaming into the base
  4. Sump or pump seal drip
  5. Dishwasher not level, letting water pool onto the sensor
Where water collects
1Door gasket
2Hoses & sump
3Base tray
4Float switch

Schematic illustration of a typical dishwasher — not your exact model.

Before you start — unplug the appliance and turn off the water supply. You'll be working near water and electrical parts, and drained water can be hot. If a step involves the pump, wiring, or opening the cabinet and you're unsure, stop and call a qualified technician.

Step-by-step fix

1Stop and disconnect powerTurn the dishwasher off and cut power at the breaker before inspecting, since standing water is present.
2Check detergent useConfirm you are using dishwasher detergent in the correct amount, as over-sudsing can trigger the leak sensor.
3Inspect seals and hosesExamine the door gasket, inlet and drain hoses, clamps, and connections for drips or damage.
4Level the unitVerify the dishwasher is level so water does not pool toward the base sensor.
5Dry the base and retestIf accessible, dry the base pan; if AE/E1 returns immediately, an active leak needs professional repair.

Still showing AE?

If you’ve worked through every step and AE keeps returning, an internal part likely needs testing and replacement. That’s a job for a qualified appliance technician, who can measure the suspect part against the service-manual spec before replacing it.

Which models this applies to

LG dishwashers. Most LG dishwashers with a base leak-protection float; displayed as AE or E1 depending on model.

FAQ

What does LG AE mean?

Leak detected — water in the base. The dishwasher's leak-protection (Aquastop-type) system detected water in the base pan, which raises a float switch and stops the cycle. LG shows this as AE (or E1 on some models).

What causes LG AE?

The most likely cause is leaking or worn door gasket/bottom seal. Other causes include Loose hose or clamp, or a seeping inlet valve; Excess detergent or rinse aid foaming into the base; Sump or pump seal drip; Dishwasher not level, letting water pool onto the sensor.

Can I fix LG AE myself?

Some checks are DIY, but this code often points to an internal component, so it may need a qualified technician.