LG Range Error Code F19

The F19 code on an LG range means the lower oven is not heating properly. The control board detects this when the oven starts at or below 130 degrees Fahrenheit and the temperature does not rise more than 10 degrees Fahrenheit within the first 5 minutes of a cooking cycle. This fault applies to all standard cooking modes but excludes Proof, Warm, and Easy Clean. It typically points to a failed bake element, sensor issue, or a wiring problem.

You should not rely on the lower oven for cooking while the F19 fault is active, as the oven is confirmed to not be reaching cooking temperatures. Using it could result in undercooked food or an unresolved electrical issue going undetected. Diagnose and repair the fault before resuming normal oven use.

Resetting the range by disconnecting it from power for a few minutes may temporarily clear the F19 code, but the fault will return as soon as you attempt to use the lower oven if the underlying problem has not been fixed. The control board re-runs its heating check every time a cook cycle starts, so the error will reappear until the faulty component is repaired or replaced.

Some causes of F19 are within reach of a knowledgeable DIYer. Inspecting wiring connections and testing the oven temperature sensor for continuity are tasks that can be done with basic tools and a multimeter. Replacing a bake element is also a common DIY repair. However, if the control board is the source of the fault, replacement is more complex and many homeowners prefer to have a qualified technician handle that work.

Repair costs vary depending on which component has failed. A replacement bake element typically falls in the range of $20 to $75 for the part alone. An oven temperature sensor generally costs between $15 and $50. A new oven control board is the most expensive fix, often ranging from $100 to $300 or more for the part. Adding a technician's labor will increase the total cost by $75 to $200 depending on your location.