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LG Dryer Error Codes

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

Your LG dryer uses 20 distinct error codes to flag faults before they turn into a full breakdown. The most common cluster around airflow (5), sensor (5), heating (3). Of these, about 20 can usually be cleared at home without a technician, while 11 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 $450 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
D80	Duct blockage detected — exhaust duct 80% blocked	⚠ Medium Severity	easy	$0–$40
D90	Duct blockage detected — exhaust duct 90% blocked	⚠ High Severity	easy	$0–$50
D95	Duct blockage detected — exhaust duct 95% blocked	⚠ High Severity	moderate	$0–$200
F9	Thermistor failure — temperature sensor not reading	⚠ Medium Severity	moderate	$15–$35
CL	Child lock is active — controls are locked	✓ Low Severity	easy	$0–$0
nP	No power to the heating element	⚠ High Severity	hard	$0–$250
D75	Exhaust duct ~75% blocked — airflow restriction warning	⚠ Medium Severity	easy	$0–$35
PS	Power supply error — improper voltage at the cord or terminal block	⚠ High Severity	moderate	$0–$40
dE	Door error — dryer door not fully closed	✓ Low Severity	easy	$15–$40
tE3	Thermistor error — drying temperature sensor out of range	⚠ High Severity	moderate	$15–$40
tE4	Thermistor error — secondary/outlet temperature sensor fault	⚠ High Severity	moderate	$15–$40
HS	Humidity sensor error — moisture sensing failure	⚠ Medium Severity	easy	$0–$50
GAS	Gas supply error — no gas detected (gas dryer models only)	⚠ High Severity	hard	$30–$60
dH	High temperature error — drum temperature exceeded safe limit	⚠ High Severity	moderate	$8–$35
PF	Power failure — cycle interrupted	✓ Low Severity	easy	$0–$0
nF	No heat / airflow fault — dryer runs but cannot maintain heating	⚠ High Severity	moderate	$0–$95
E2	Control board error — internal board fault detected on power-up or mid-cycle	⚠ High Severity	hard	$0–$200
E3	Motor or board sensing error — drum motor not detected running	⚠ High Severity	hard	$10–$200
tCL	Tub clean reminder — time to clean the drum and condenser (not a fault)	✓ Low Severity	easy	$0–$0
tE1	Thermistor error — air temperature sensor out of range	⚠ Medium Severity	easy	$10–$30