LG Oven Error Code F18 — Meat Probe Malfunction
What this means
The F18 error code indicates the oven's meat probe sensor is malfunctioning. The probe may be reading temperatures that are out of range, or the connection between the probe and the oven's control board is faulty. This can be caused by a damaged probe, a dirty probe jack, or a wiring issue.
Step-by-step fix
3 stepsRemove and clean the probe
Unplug the meat probe from the oven jack. Clean the probe tip and the jack with a dry cloth to remove grease or food residue.
Reinsert the probe
Push the probe plug firmly into the jack until it seats fully. Start a cook cycle to see if the error clears.
Test without the probe
Remove the probe entirely and try cooking without it. If the oven works fine without the probe, the probe itself is faulty.
When to call a professional
If the probe jack inside the oven is damaged, a technician will need to replace it.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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