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LG · Human-reviewed guidance

LG refrigerators IF error

The refrigerator detected a problem with the ice-maker fan.

IF

What this code can mean

LG associates IF or F1 with an ice-maker fan problem that can be caused by frost or ice buildup and documents a controlled manual-defrost process before service.

Safe first checks

  1. 1
    Confirm refrigerator and freezer doors close fully and visible gaskets are not torn.
  2. 2
    Protect and relocate perishable food before any extended defrost period.
  3. 3
    Follow the exact LG model guidance for a controlled power-off defrost without using tools or heat sources.

Possible causes

  • Frost or ice is restricting the ice-maker fan.
  • A torn gasket, door misalignment, or an incompletely closed door allowed moisture inside.
  • The ice-maker fan may require service.
Stop conditions
  • Do not remove panels, reach into the fan area, or use sharp tools or external heat to remove ice.
  • Request service if door alignment and the documented defrost process do not resolve the error.

Use LG support or an authorized servicer if IF or F1 persists.