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LG Refrigerator Error Code Er FF

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026
⚠ High Severity 🔧🔧 Moderate DIY

Freezer fan error — fan motor not operating

The most common cause of the Er FF error on a LG refrigerator is evaporator fan motor failure (~45% of cases); start with: check for ice blockage.

💰 DIY cost: $25–$65 👨‍🔧 Pro cost: $200–$380 Save $175+ by doing it yourself
LG Refrigerator error code Er FF on the display panel
How the Er FF code appears on a LG refrigerator display

What Does Error Code Er FF Mean on a LG Refrigerator?

Freezer fan error — fan motor not operating.

Er FF fires when the control board detects that the freezer evaporator fan motor is not spinning or is running below its target RPM, typically read from the fan's feedback signal. Because this fan pushes cold air off the evaporator coils into both compartments, a stall triggers the alarm quickly. It differs from Er CF, which points to the condenser fan; Er FF is specifically the internal evaporator fan behind the freezer back panel, often obstructed by frost.

Models affected: LG refrigerators with a freezer evaporator fan monitored by the main control board, including models such as LFXS26973S, LFXS28968S, LRFVS3006S, LMXS28626S, and LRFDS3016S.
What owners report: Owners commonly report this code showing up after a defrost problem lets ice build up around the fan blade, and clearing the frost with a 24–48 hour defrost often restores normal operation. If the code returns within weeks, the underlying defrost system is a frequent culprit rather than the fan itself.

What Causes Error Code Er FF?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

  1. 1
    Evaporator fan motor failure 45% of cases
  2. 2
    Ice buildup blocking fan blade 35% of cases
  3. 3
    Fan blade broken or hitting ice/frost 15% of cases
  4. 4
    Wiring harness to fan disconnected 5% of cases

How to Fix LG Refrigerator Error Code Er FF

🔧🔧 Moderate DIY Est. time: 30–60 min
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Check for ice blockage

    Remove the freezer back panel. Look for excessive frost or ice buildup around the fan blade. If present, manually defrost by leaving the refrigerator off for 24–48 hours.

  2. 2

    Spin the fan blade

    After defrosting, spin the fan blade by hand. It should rotate freely. If it's stiff or hitting something, clear the obstruction.

  3. 3

    Test the fan motor

    Disconnect the fan and apply 12VDC. If it doesn't spin with direct power, the motor has failed.

    🔩 LG evaporator fan motor ($25–$65)
  4. 4

    Replace the fan motor

    The motor is mounted on a bracket behind the freezer back panel. Unscrew, disconnect, and install new motor.

    🔩 LG evaporator fan motor ($25–$65)
    ⚠️ Unplug the refrigerator first.

How to Reset Error Code Er FF

After repair, plug in and allow 24 hours for temperatures to stabilize. The error code should clear automatically.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

Full LG refrigerator reset guide → Enter diagnostic mode →

Did this guide fix your appliance?

When to Call a Professional

If ice buildup recurs within weeks after clearing, the defrost heater or defrost control is failing — this needs professional diagnosis.

Average professional repair cost for this issue: $200–$380

Related Error Codes

Er CF
Condenser fan motor error
⚠ High Severity

Same Code on Other Brands

Error code Er FF appears on these other brands too. See every brand that shows Er FF →

Kenmore logo
Kenmore Refrigerator ER FF
Freezer evaporator fan motor fault

Find Replacement Parts

Use these links to find the exact replacement parts for your LG Refrigerator:

🔩
Search PartSelect
LG Refrigerator repair parts
🔧
Search RepairClinic
Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More LG Refrigerator Error Codes

Er dH Defrost heater error — defrost cycle not completing Er FS Freezer temperature sensor error Er IS Ice maker sensor failure Er IF Ice maker fan error Er CO Communication error — main board to sub-board dS Defrost sensor open circuit

Frequently Asked Questions

Can I keep using my LG Refrigerator when error Er FF appears? +
It is not advisable. The refrigerator may still power on, but running it while Er FF is active can worsen the motor fault or damage related parts. Treat it as a soon-as-possible repair.
What most commonly causes Er FF on a LG Refrigerator? +
Across reported LG refrigerator repairs, the most frequent is evaporator fan motor failure (45% of cases), ice buildup blocking fan blade (35%), then fan blade broken or hitting ice/frost (15%). Check them in that order before replacing any parts.
Er FF keeps coming back after a reset — what should I check next? +
A reset only clears the stored Er FF fault; if it returns, the motor problem is still present. Move on to the physical checks — check for ice blockage, then spin the fan blade — since the code will reappear until the root cause is resolved. This is a moderate job — a multimeter and some disassembly are usually involved.
How much does it cost to fix LG Refrigerator error Er FF? +
A DIY repair typically runs $25–$65 in parts, versus $200–$380 for a professional service call, so handling it yourself saves around $175. Expect the work to take roughly 30–60 minutes.
Which LG Refrigerator models show error Er FF? +
Er FF is documented on LG refrigerators with a freezer evaporator fan monitored by the main control board, including models such as LFXS26973S, LFXS28968S, LRFVS3006S, LMXS28626S, and LRFDS3016S.. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

Content verified against manufacturer service documentation. Last verified: June 10, 2026.

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