LG Microwave F1 Error Code

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What it means

The microwave detected a problem with the main control board.

Try this first

Stop using the microwave.
Disconnect power.
Do not attempt internal high-voltage microwave repairs.

Can I keep using it?🔴 Technical fault

Repair usually required?🔴 Service required

If the error keeps returning

LG identifies F1 as a main-board fault requiring 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.

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LG Microwave F1: Quick Answer

What it means: The microwave detected a problem with the main control board.

First thing to check

Stop using the microwave.

Can I keep using it?

Technical fault

Repair outlook

Service required

If the code remains

LG identifies F1 as a main-board fault requiring service.

Model note: Error-code meanings and procedures can vary by model and model year. Confirm the code against the documentation for your exact appliance before replacing parts.

Manufacturer reference: lg.com