FixByModel
Er FF

LG Er FF: Freezer fan motor not turning

The control board did not detect the freezer evaporator fan spinning, so cold air is not circulating. The most common trigger is frost or ice locking the fan blade.

May need a technician

By the FixByModel editorial team · Verified 2026-09 · Researched against manufacturer support & repair references (below)

Most likely causes

  1. Ice or frost buildup blocking the fan blade
  2. Failed freezer evaporator fan motor
  3. A stuck defrost cycle allowing frost to accumulate
  4. Damaged wiring or connector to the fan motor
Before you start — unplug the refrigerator before working on it. Mind sharp metal edges, and never open the sealed refrigerant system — compressor, sealed-system and refrigerant work must be left to a qualified technician.

Step-by-step fix

1Reset powerUnplug the refrigerator or switch off its breaker, wait about 5 minutes, then restore power and see if the code clears.
2Thaw the fanIf the code returns, unplug the unit and leave the freezer door open so ice around the fan can melt (roughly 1 day in summer, up to 3 days in winter), then power it back on.
3Check airflowRemove any packed food or frost blocking the rear freezer vents and confirm the door seals fully.
4Call a technicianIf Er FF reappears after thawing, the fan motor or control board likely needs professional inspection and replacement.

Still showing Er FF?

If you’ve worked through every step and Er FF keeps returning, an internal part likely needs testing and replacement. That’s a job for a qualified appliance technician, who can measure the suspect part against the service-manual spec before replacing it.

Which models this applies to

LG refrigerators. LG top-mount, bottom-freezer, side-by-side and French-door refrigerators with digital displays (code may show as E FF)

FAQ

What does LG Er FF mean?

Freezer fan motor not turning. The control board did not detect the freezer evaporator fan spinning, so cold air is not circulating. The most common trigger is frost or ice locking the fan blade.

What causes LG Er FF?

The most likely cause is ice or frost buildup blocking the fan blade. Other causes include Failed freezer evaporator fan motor; A stuck defrost cycle allowing frost to accumulate; Damaged wiring or connector to the fan motor.

Can I fix LG Er FF myself?

Some checks are DIY, but this code often points to an internal component, so it may need a qualified technician.