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LG Oven Error Codes

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

Your LG oven uses 11 distinct error codes to flag faults before they turn into a full breakdown. The most common cluster around sensor (3), normal (2), door (2). 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 $550 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.

Code	Meaning	Severity	DIY	Est. Cost
F11	Heat error — oven failed to reach temperature in time	⚠ High Severity	hard	$25–$90
F19	Temperature sensor error — sensor or wiring fault	⚠ High Severity	moderate	$25–$55
HS	Hot Surface indicator — surface still hot (not a fault)	✓ Low Severity	easy	$0–$0
PF	Power failure — unit lost power during operation (not a fault)	✓ Low Severity	easy	$0–$0
Sb	Sabbath Mode active — controls intentionally disabled (not a fault)	✓ Low Severity	easy	$0–$0
F1	Oven temperature sensor open circuit	⚠ High Severity	easy	$25–$55
F2	Oven over-temperature — exceeded maximum safe temperature	🛑 Critical — Stop Using	hard	$0–$70
F3	Oven temperature sensor short circuit	⚠ High Severity	easy	$25–$55
F5	Door latch failure during self-clean cycle	⚠ Medium Severity	moderate	$60–$140
F6	Door lock switch open — door latch not detecting locked position	⚠ Medium Severity	moderate	$60–$140
F9	Control board failure — internal fault	⚠ High Severity	hard	$150–$380