LG Dishwasher Error Codes — Complete List

LG dishwashers use the same two-letter convention as LG washers — OE for drain trouble, IE for fill trouble — but the dishwasher versions have their own causes, from a clogged filter assembly to the garbage-disposal knockout plug that installers forget to punch out. Each verified code below links to a full ranked-cause guide.

• OE The dishwasher can't drain its water — check the internal filter, the drain hose, and (after a new disposal install) the knockout plug everyone forgets to remove.
• AE The leak sensor in the base of the dishwasher detected water — the unit goes into a protective drain mode, and the cause ranges from oversudsing to a genuine seal failure.
• HE The dishwasher's water heating system isn't working as expected — and because it involves a high-wattage heater on mains power, this is one to hand to a technician.
• IE (1E) Ten minutes of filling didn't raise the water level enough — almost always a supply problem between the shut-off valve and the unit rather than a failed part.
• FE The unit detected more water than it should ever hold and started draining on its own — a stuck inlet valve or level-sensing fault is behind most cases.
• tE The unit measured water at an impossible temperature or its sensor failed outright — beyond one reset, this is heater-circuit territory that belongs to a technician.
• LE The circulation motor that powers the spray didn't run as commanded — debris and a reset cover the easy cases, and a worn motor accounts for the persistent ones.
• nE The small vario motor that switches spray pressure between the racks reported a fault — check for obstructions in its path, then it's a technician's part.

Don't see your code?

One code here deserves special mention: HE (heating error) has no safe DIY fix, because everything it implicates sits on mains wiring. That guide explains what a technician will check instead.

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