Lg dishwasher error code oe
Drainage problem: water is not pumping out.
Cause 1 of 3The drain hose is clogged, kinked or frozen. Source: Troubleshooting: Error Messages, p. 37
First checkCheck the drain hose for clogs, kinks and ice.
Causes and checks
The drain hose is clogged, kinked or frozen. Source: Troubleshooting: Error Messages, p. 37
- Check the drain hose for clogs, kinks and ice.
The air gap or the garbage disposal is clogged. Source: Troubleshooting: Error Messages; Maintenance: Clogged Drain Air Gap or In-Sink Disposal, p. 37
- Clean the air gap, if the sink has one. See Clean the air gap.
- Check that the garbage disposal is not clogged.
The filters are clogged. Source: Troubleshooting: Error Messages, p. 37
- Clean the filters. See Clean the filters.
All 3 causes checked. Contact LG Electronics Customer Information Center: 1-800-243-0000.
Service
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
Owner reports (not from the manual)
Owners of LG dishwashers (an LDF7774ST in two of the threads, other models unnamed) cleared OE by disconnecting the drain hose where it joins the sink trap or disposal and removing food debris from the hose end and its connection. Seeds, nuts, gum and rice were found there. In the iFixit thread whose answer is marked as the solution, three people confirmed the cleaning at the hose end. One owner in the other thread found the Y-fitting to the sink drain clogged again right after the hose itself was cleared. One poster in the first thread repeats the cleaning every few months. Several owners in the same threads replaced the drain pump and still had the code.
Other LDFN4542S codes
- AE: Water leakage. The dishwasher keeps draining and switches itself back on if power is turned off, until the AE error is resolved.
- 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.
Sources
- 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.