Lg dishwasher ae code

Water leakage. The dishwasher keeps draining and switches itself back on if power is turned off, until the AE error is resolved.

Cause 1 of 2A leak was detected. LG gives no owner reset for AE. Source: Troubleshooting: Error Messages, p. 38

First checkTurn off the water supply to the dishwasher.

Causes and checks

A leak was detected. LG gives no owner reset for AE. Source: Troubleshooting: Error Messages, p. 38
1. Turn off the water supply to the dishwasher.
LG Electronics Customer Information Center Call the LG Customer Information Center: 1-800-243-0000 (USA) or 1-888-542-2623 (Canada). Contact: 1-800-243-0000 or lg.com/us/support.
In a cabinet opening narrower than recommended, the dishwasher hangs from its installation brackets instead of resting on all three leveling feet. LG says this can cause front leaks and AE errors. Source: Installation: Leveling Dishwasher, p. 20
Qualified technician Have the installer re-level and realign the dishwasher so that all three leveling feet carry its weight.

If the checks above do not clear it, contact LG Electronics Customer Information Center: 1-800-243-0000, lg.com/us/support. United States (Canada: 1-888-542-2623). Source: Troubleshooting: Error Messages, p. 38

OE: Drainage problem: water is not pumping out.
bE: Oversudsing, usually from the wrong detergent. LG also lists an unlevel dishwasher as a cause.
IE: Water inlet problem: water is not coming in.
LE: Wash motor error. LG gives no owner check.
FE: Too much water was supplied. LG gives no owner check.
HE: Heater circuit failure. LG gives no owner check.
tE: Water temperature sensor error. LG gives no owner check.
NE: Vario motor error. LG gives no owner check.
CL: Not an error. Control Lock is on, so every button except Power is locked. It does not lock the door.
P1–P4, L0–L4, N:#, U:#, d:#, t#: Not errors. P1 to P4 show the selected Download Cycle (default P1, Pots & Pans), L0 to L4 show the rinse-aid level setting, and N:, U:, d: or t with a number means test mode.

Owner's Manual, Dishwasher LDF554 and LDFN454 models (abridged edition). LG Electronics Inc. Document MFL69261755, revision Rev.00, 2023-09-04, 48 pages, en-US. gscs-b2c.lge.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.

Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.

Applies to: LDFN4542S (variant LDFN4542S.ASSESNA), LDFN4542W (variant LDFN4542W.ABWESNA), LDFN4542B (variant LDFN4542B.ABPESNA), LDFN4542D (variant LDFN4542D.ABDESNA). United States and Canada.
Source: Owner's Manual, Dishwasher LDF554 and LDFN454 models (abridged edition), MFL69261755 revision Rev.00, 2023-09-04
Last verified: 13 November 2026
Handbook: LG LDFN4542S dishwasher in Dishwashers; all LG handbooks