ErrorCodeDoctor
LG · Refrigerator (French Door)

LG Refrigerator (French Door) FF error code

Difficulty: Medium · Cost: $0–$200 · Duration: 8h

The FF error means your LG refrigerator has detected an issue with the freezer fan. The freezer fan circulates cold air throughout the freezer and refrigerator compartments — when it cannot spin properly cooling is affected in both sections. The most common cause is excessive frost buildup around the fan blades preventing them from turning. A manual defrost resolves this in many cases. If no frost is present the fan motor itself may have failed and will need replacing by a technician. For French Door models check the gasket alongside the door to ensure it is not torn or damaged — frost buildup can occur if the doors are not aligned properly.

Common causes

  • Frost buildup around the freezer fan blades preventing them from spinning
  • Door gasket is not sealing properly allowing warm humid air in and causing excess frost
  • Refrigerator or freezer doors are not closing or sitting level correctly
  • Freezer fan motor has malfunctioned or failed
  • Vents inside the refrigerator are blocked preventing proper airflow

How to fix it

  1. 1

    Unplug the refrigerator and remove all food and ice from the ice bin

  2. 2

    Leave both doors open and place towels inside and around the unit to absorb water

  3. 3

    Wait at least 8 hours for all frost to melt completely

  4. 4

    After 8 hours use a dry towel to remove any remaining moisture inside both compartments

  5. 5

    Plug the unit back in and allow 24 to 48 hours for the refrigerator to return to normal operating temperature

  6. 6

    Check that all vents inside the refrigerator are not blocked by food or containers

  7. 7

    Check the door gaskets all the way around for gaps or tears that could be letting warm air in

  8. 8

    Make sure the refrigerator is level and both doors are closing and sealing completely

  9. 9

    If frost was present along the freezer walls check the leveling and door alignment

  10. 10

    If no frost was found and FF returns after defrosting the freezer fan motor needs replacing by a technician

Related LG Refrigerator (French Door) error codes

1

OF F

Demo mode is active — all cooling has been disabled

easy
2

FS

The freezer temperature sensor has a short circuit or disconnection

hard
3

rS

The refrigerator temperature sensor has a short circuit or disconnection

hard
4

dS

The defrost sensor has a short circuit or disconnection

hard