F8Warning
LG Oven/Range F8 Error Code
The oven temperature sensor is not reading correctly or has failed.
Common causes
- Faulty oven temperature sensor
- Loose connection at sensor or control board
- Control board issue
How to fix it
- Perform a hard reset: unplug for 5 minutes.
- Check sensor connector for corrosion or looseness.
- Measure sensor resistance; if not 1090-1110 ohms at room temp, replace sensor.
⚠ When to call a pro: If replacing sensor doesn't clear code, the control board may need replacement.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.