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LG · Microwaves

LG Microwave F3: The touch-control area needs attention

Documentation checkedBy ErrHiveUpdated

THE SHORT ANSWER

The touch-control area needs attention

F3 indicates the touch-control area needs attention. Inspect the outside control panel for dirt or residue.

First safe check

Inspect the outside control panel for dirt or residue.

Applies to

LG microwave/lightwave ovens covered by the F3 touch-button guidance.

Before you start

Never remove a microwave cabinet or bypass its door interlocks; dangerous voltage can remain after unplugging.

Go to safe checks

WHAT YOU MAY NOTICE

Symptoms to record

  • The display shows F3.

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 1 checked

Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.

  1. Clean only the exterior touch-panel surface with an appropriate cloth and check the controls again. A persistent F3 requires service.

    What to note

    Use the result to decide whether the issue is resolved or needs service.

THE DETAILS MATTER

Scope & troubleshooting notes

Interpret this code in context

This is an external check. If the door is damaged or controls behave unpredictably, stop using the appliance rather than opening the cabinet.

YOUR NEXT DECISION

When to stop and get help

Contact LG service if this indication returns or the appliance cannot resume normal operation.

Record what you see

Keep the full model number, exact displayed code, and your observations together for the next conversation.

Use the right support

Contact the manufacturer or a qualified appliance technician when the guide calls for service.

LG support

THE EVIDENCE

Sources & verification

Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.

  1. LG Microwave — F3 Error

    LG USA · Manufacturer support · Checked

    Error-code troubleshooting; relevant display identified in the article — LG microwave/lightwave ovens covered by the F3 touch-panel guidance.

ErrHive is an independent information resource, not an authorized representative of LG. Follow your appliance’s manual. Hazardous repairs belong with qualified professionals. Read our safety policy.