LG Dishwasher Error Codes: Full List & Meanings
Updated · from manufacturer service documentation
LG dishwashers display letter-based error codes for water fill, drainage, leakage, and heating faults. Most of these same faults also surface during the built-in Test Mode as a technician runs the machine through each part in sequence. Below is every code we've confirmed against LG's service documentation so far, with full step-by-step fixes for the ones already published.
LG Dishwasher Error Codes
| Code | Meaning | Most common cause | Page |
|---|---|---|---|
| AE | Leakage Error — water detected in the base | Unlevel machine / loose door gasket / wrong detergent | LG Dishwasher AE |
| OE | Drain Error — usually an installation issue | Kinked drain hose / disposal knockout plug left in place | LG Dishwasher OE |
| IE | Water supply isn't reaching the machine — usually an installation issue | Kinked water supply line / house supply not turned on | LG Dishwasher IE |
| P1 | Not an error — default Download Cycle name ("Pots & Pans") | Download Cycle feature active | LG Dishwasher P1 |
Also seen on LG dishwashers: CL, LE, 6E, HE, 1E — pages for these are in production and will be linked here as they publish.
Frequently Asked Questions
How do I reset an LG dishwasher after an error code?
Power the unit off, resolve the underlying cause described on the code's own page, and restart a normal cycle to confirm the code clears.
Is an AE code always a real leak?
Not necessarily — an unlevel machine, a loose door gasket, or the wrong detergent can all trigger AE without an actual plumbing leak. See the AE page for the full checklist.
How does LG's Test Mode work, and what codes can show up during it?
A technician enters Test Mode by pressing Power, then Start once — the display shows the software version with all LEDs lit. Pressing Start again steps through the drying fan, soil sensor, drain motor, inlet valve, wash motor, and Vario Valve, one part per press, until the eighth press powers the unit off. A few extra codes are specific to this sequence rather than normal operation: nC appears at the first step if the NFC or Wi-Fi module fails, EE if the EEPROM fails, and nE at the wash-position step if the Vario Valve fails.
Based on the LG service documentation for the LDF5545ST and LDT7808ST dishwasher series. Last updated: .