ERROR CODE EXPLAINED
LG Microwave
LG Microwave F3 Error Code
What it means
The microwave detected a problem with the control panel.
Try this first
- Turn the microwave off.
- Clean and dry the touch-control area.
- Remove any food residue or moisture from the controls.
- Restore power and check whether F3 returns.
Can I keep using it?⚠ Control-panel fault
Repair usually required?⚠ Service may be required
If the error keeps returning
If F3 remains after the control panel is clean and dry, LG recommends service.
Official source
Troubleshooting information verified against manufacturer support documentation.
View manufacturer support page →Safety note:ApplianceSignal provides general troubleshooting information. Always follow the appliance manufacturer's safety instructions and disconnect power when required.