Er FF Serious Moderate DIY

LG Refrigerator Er FF — Freezer Fan Fault

LG Refrigerator · Error code Er FF

What Er FF Means

Er FF (Freezer Fan error) means the evaporator/freezer fan is not running at the expected speed. Without the fan, cold air does not circulate and the fridge loses cooling.

Most Likely Fix

Freezer fan motor circuit error

PartEvaporator (freezer) fan motor
Typical cost$40-90
Difficultymoderate
Time60 min

Tools: screwdriver, nut driver

Diagnose first: Fan icing up from a failed defrost system is common; verify defrost heater and thermistor before just swapping the fan.

Find this part on Amazon →

Symptoms

  • Freezer and fridge warming up
  • Frost buildup on the back wall
  • Er FF on the display

Common Causes

1
Fan blade iced over

Frost from a defrost problem jams the fan blade.

2
Failed fan motor

The freezer fan motor has worn out or seized.

3
Wiring/connector fault

A loose connector to the fan motor.

How to Fix It

  1. Unplug the fridge and check the freezer fan for ice jamming the blade.
  2. If iced, a manual defrost (24h unplugged) may restore it temporarily, but find the defrost cause.
  3. Spin the fan by hand — if stiff or noisy, replace the fan motor.
  4. Check the fan wiring connector.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement LG Refrigerator Evaporator Fan Motor View on Amazon→

Related Repair Guides

Freezer Not Freezing — Troubleshooting Guide →Refrigerator Making Noise — What Each Sound Means →Refrigerator Not Cooling — Troubleshooting Guide →

More LG Refrigerator Codes

22 22 — Compressor relay / inverter control fault 33 33 — Compressor / defrost test fault 67 67 — Door open / not fully closed 88 88 — Power-on display test (not a fault) Er CF Er CF — Condenser Fan Fault Er CO Er CO — Compressor / Communication Fault

All LG codes → All refrigerator codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.