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LG Dishwasher Error Codes

11 error codes with causes and step-by-step fixes

Your LG dishwasher uses 11 distinct error codes to flag faults before they turn into a full breakdown. The most common cluster around leak (3), motor (2), drainage (1). Of these, about 11 can usually be cleared at home without a technician, while 6 point to more serious faults that may warrant a professional. Typical repair costs on this appliance run from $0 for simple DIY fixes up to $480 for professional component replacement.

Find your code in the table below for its exact meaning, the most likely causes ranked by how often they're the culprit, a step-by-step fix, the parts you may need, and a clear call on when it's worth phoning a repair pro.

🔍 How to Enter Diagnostic Mode 🔄 How to Reset & Clear Codes

Code	Meaning	Severity	DIY	Est. Cost
AE	Leakage detected — water found in base tray	⚠ High Severity	moderate	$0–$100
OE	Drain error — dishwasher not draining	⚠ High Severity	moderate	$0–$100
IE	Water inlet error — not filling with water	⚠ Medium Severity	easy	$0–$70
FE	Water overflow — overfill protection triggered	⚠ High Severity	moderate	$35–$80
HE	Heater failure — water not heating	⚠ High Severity	moderate	$15–$95
tE	Temperature sensor failure	⚠ Medium Severity	moderate	$15–$40
LE	Leakage detected — flood protection activated	⚠ High Severity	moderate	$0–$100
CE	Motor/pump over-current error	⚠ High Severity	hard	$0–$240
CL	Door close / child lock indicator — door not latched or controls locked	✓ Low Severity	easy	$0–$55
nE	Vario motor error — wash arm diverter motor not reaching position	⚠ Medium Severity	hard	$0–$70
bE	Bubble/leak error — excessive suds or air detected in the wash system	⚠ Medium Severity	easy	$0–$10

⚠️ Serious Errors — Act Quickly

Leakage detected — water found in base tray

AE (also shown as E1) fires when the anti-flood float in the base tray rises, tr…

Drain error — dishwasher not draining

OE fires when the control board does not sense the tub water level dropping to e…

Water overflow — overfill protection triggered

FE fires when the control board sees water above the safe fill threshold, typica…

Heater failure — water not heating

HE fires when the control board sees wash-water temperature failing to climb tow…

Leakage detected — flood protection activated

Water has reached the base pan/flood sensor, so the dishwasher runs the drain pu…

Motor/pump over-current error

CE indicates the control board has sensed the circulation pump motor drawing cur…

No Code on the Display?

Start from what the dishwasher is doing instead:

Dishwasher Not Draining Dishwasher Not Cleaning Dishes Dishwasher Leaking Dishwasher Won't Start 💰 Dishwasher repair costs