F09Serious
LG Dryer F09 Error Code
The main control board has detected an overheating condition, possibly due to a shorted component or poor ventilation.
Common causes
- Shorted heating element or motor
- Blocked ventilation for electronics
- Faulty control board
How to fix it
- Unplug the dryer and allow it to cool for 30 minutes.
- Check for any obstructions around the dryer that prevent airflow to the control area.
- Inspect the heating element and motor for shorts (use a multimeter).
⚠ When to call a pro: Call a technician if the error returns after cooling, as the control board may be damaged.
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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.