DIY Error Codes

LG dishwasher error AE

Water leakage

Turn off the water supply to the dishwasher, then contact LG service.

Shut off the dishwasher's water supply. Repairs must be done by qualified service personnel.
Why
LG (p.5): "Disconnect this appliance from the power supply before cleaning and attempting any user maintenance. Turning the controls to the OFF position does not disconnect this appliance from the power supply." "Do not repair or replace any part of the appliance. All repairs and servicing must be performed by qualified service personnel unless specifically recommended in this Owner's Manual. Use only authorized factory parts."

Fix it step by step

Step 1 of 4

  1. Turn off the water supply

    • 2 min
    • None
    • Caution

    Safety: Shut off the dishwasher's water supply. Repairs must be done by qualified service personnel. Water near electrical parts: do not open the dishwasher's lower panel.

    LG's first action for AE.

    Why & details

    Turn off the water supply.

    LG chart, AE (p.48): "Turn off the water supply to the dishwasher" and contact LG's Customer Information Center.

  2. Know what AE does

    • 1 min
    • None
    • DIY

    The alert sounds and the drain pump runs until AE is resolved.

    Why & details

    Know what AE does.

    LG chart, AE (p.48): "The dishwasher makes an alert sound for 10 seconds, and runs the drain pump intermittently. If power is turned off to the machine, the machine powers back on automatically until the AE error is resolved."

  3. Mention leveling to the technician

    • 1 min
    • None
    • DIY

    LG says poor leveling can cause AE errors.

    Why & details

    Mention leveling to the technician.

    LG Installation (p.19): the dishwasher must be carefully leveled and aligned so it is supported fully by the 3 leveling feet and not hanging from the installation brackets; "Failure to do so can result in leaks from the front of the dishwasher, AE errors, difficulty in closing the door, or failure to operate." Leveling is part of installation.

  4. Contact LG service

    • Decision
    • None
    • Pro decision

    LG's manual sends AE to LG service.

    Why & details

    Contact LG service.

    LG chart, AE (p.48): after turning off the water supply, contact LG's Customer Information Center. All repairs must be performed by qualified service personnel (p.5).

    Still showing AE?Need a pro → call a pro

Code cleared. Nice work.

Watch the display for a day to make sure it stays clear.

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Fixed after any step? Watch the display for a day to make sure it stays clear. Still AE after step 4? call a pro.

What AE means

The dishwasher has detected a water leak. LG's instruction is to shut off its water supply and contact LG service.

More detail
LG's Error Messages chart (p.48) lists AE as "Water leakage". LG says the dishwasher makes an alert sound for 10 seconds and runs the drain pump intermittently, and that if power is turned off, the machine powers back on automatically until the AE error is resolved.

5-minute checks

Full answer & models

LG dishwasher AE means water leakage. Turn off the water supply to the dishwasher and contact LG service. The drain pump runs on its own until AE is resolved.

Applies to: LDT779#**LDP679#**LDP567#**LDT566#**LDPN676**
Also searched as: LG dishwasher AE, LG dishwasher AE code, LG dishwasher error code AE, LG AE error, LG dishwasher leak error, LG dishwasher AE won't turn off

Call a pro if…

  • AE is showing (LG: turn off the water supply and contact LG service).
  • There is water on the floor or under the dishwasher.
  • The dishwasher may need re-leveling or other installation work.

FAQ

What does AE mean on an LG dishwasher?

Water leakage, per LG's Error Messages chart.

Why won't AE turn off?

LG says that with AE the drain pump runs intermittently and, if power is turned off, the machine powers back on automatically until the AE error is resolved.

Can I fix AE myself?

LG's manual only tells owners to turn off the water supply and contact LG service. It also says repairs must be done by qualified service personnel.

Source: LG Dishwasher Owner's Manual LDT779/LDP679/LDP567/LDT566/LDPN676 (MFL71917404): Error Messages p.48, Installation (leveling) p.19, Safety p.5. Written by the DIY Error Codes team. Updated 2026-10-17. DIY Error Codes is independent and not affiliated with or endorsed by LG.