LG Dishwasher Error Codes
LG dishwashers display LE, OE, IE, and AE codes for motor, drain, fill, and leak faults. QuadWash and TrueSteam models add extra sensors at the sump and door.
General troubleshooting
Try these checks before opening a specific error code page—they resolve many LG dishwasher faults without parts.
- 1Cancel the cycle, remove the lower rack, and clean the filter assembly at the sump
- 2Check the drain hose high loop under the sink and clear the garbage disposal knockout if newly installed
- 3Inspect the door gasket and corner gaskets for food debris preventing a seal
- 4Run an empty cycle with dishwasher cleaner on LDFN4542S and similar models
- 5Verify the home water supply to the dishwasher valve is fully open
Common symptoms
Owners often search for a code after noticing one of these issues on their LG dishwasher:
- Standing water in the bottom after a cycle (OE drain fault)
- Dishwasher won't start and LE shows on the display
- AE or leak icon with water under the kick plate
- Dishes come out cold when the heating element circuit fails
- Long fill or IE when the inlet valve or float switch misreads
All LG dishwasher error codes
| Code | What it means | Guide |
|---|---|---|
| 6E | Inlet water flow too low during fill6E is LG's inlet flow error—the fill valve opened but the flow meter or level switch did not see enough water within the programmed window. The cycle aborts before wash to avoid running the pump dry. | View fix → |
| AE | Leak or flood sensor triggeredAE indicates Auto Error from the leak pan sensor under the dishwasher. A small amount of water in the base tray trips the switch and shuts down fill and wash to protect flooring. | View fix → |
| BE | Button or touch panel stuckbE is a Button Error—the control thinks a key is continuously pressed. Cycles won't start or may flash bE until the panel state clears. | View fix → |
| CE | Motor communication or circulation faultCE indicates a circulation or communication fault on the wash motor circuit—distinct from LE in some firmware versions but often appearing together when the motor cannot report speed to the board. | View fix → |
| DE | Door not latched for cycle startdE means the door switch did not confirm closure. LG dishwashers won't fill or heat until the latch reports locked. | View fix → |
| FE | Overfill detected in the tubFE is a Fill Error tied to overfill—the tub gained more water than the level sensor expected, or the float triggered flood protection. | View fix → |
| FF | Freeze protection on inlet linesFF indicates Freeze Fault—ambient or inlet water approached freezing and the dishwasher locked out fill to protect valves and hoses. | View fix → |
| HE | Heater did not reach target temperatureHE reports a heating error—the thermistor did not see water reach the programmed wash temperature within the heat window. On LG dishwashers this often traces to lukewarm house water rather than a dead element. | View fix → |
| IE | Not enough water entering the tubIE is an Inlet Error—the fill valve opened but the water level never reached the minimum within the allowed time. The board assumes no water entered or the level sensor failed. | View fix → |
| LE | Wash motor locked or stalledLE indicates the main wash motor stalled. LG's sump motor drives spray arms; if something jams the impeller or the motor overheats, LE appears and the cycle aborts. | View fix → |
| NE | Spray arm or motor speed faultnE on LG dishwashers relates to spray arm or motor speed detection—the board expected a certain RPM or spray pattern and did not detect it. | View fix → |
| OE | Outlet error—drain pump ran but water did not leave within timeoutLG dishwasher OE means Outlet Error: the drain pump energized for the programmed duration but the control did not detect sufficient water removal from the sump. This is specific to LG dishwashers—do not confuse it with LG washing machine OE (overflow) or Samsung OE codes. On LDFN4542S, LDTS5552S, and LDP6810SS models, OE typically reflects a restricted filter, blocked drain hose, failed drain pump impeller, or improper drain hose routing without the required high loop. The pump part 5859DD9001B is the common OEM drain motor replacement when mechanical clearing fails. | View fix → |
| PE | Water level pressure sensor faultPE is a Pressure Error—the water level sensor did not provide a valid signal during fill or drain transitions. | View fix → |
| PF | Power interrupted during cyclePF is Power Failure—the control lost AC during operation. It is not a component fault; restart or resume depending on model. | View fix → |
| SE | System or motor sensor mismatchSE is a Sensor Error—feedback from the wash motor or system sensors disagreed with commanded state. Often follows LE events or water in connectors. | View fix → |
| TE | Thermistor signal out of rangetE is a Thermistor Error—the NTC sensor that reports wash water temperature sent an invalid resistance. Heat cycles may abort or never start. | View fix → |
16 codes documented with causes, fixes, and affected models.