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Error code reference

LG Refrigerator Error Code F-111

C-FAN Error

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What the F-111 error code actually means

Your LG refrigerator is detecting a problem with the fan that cools the back of the unit near the compressor. The refrigerator's control board is not receiving a proper signal from that fan, which could mean a loose wire connection or a fan motor that has stopped working correctly. This issue should be addressed promptly, as it can affect how well the refrigerator maintains its set temperature.

Diagnostic procedure

The full F-111 procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check voltage between MAIN PCB CN76 #5 (Sky-blue) and #1 (Gray); should be within 7V~12V.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of F-111

Ranked by how often they cause this code
  1. 1Loose or disconnected motor wiring harness
  2. 2Defective feedback signal wire
  3. 3Failed condenser fan motor
  4. 4Corroded or damaged connector pins at CN76
  5. 5Faulty main PCB

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Questions people ask about F-111

What does F-111 mean on a LG refrigerator?
F-111 is a condenser fan (C-FAN) error code on LG refrigerators. It indicates that the main control board is not receiving a valid feedback signal from the condenser fan motor. This can be caused by a loose or disconnected wiring harness, a damaged feedback signal wire, or a failed motor. The control board monitors the fan circuit through connector CN76 and expects a voltage between 7V and 12V on the feedback line.
Is it safe to keep using my refrigerator when the F-111 code is showing?
Continuing to run the refrigerator with an active F-111 error is not recommended for extended periods. Without proper condenser fan operation, the compressor and condenser area can overheat, which may stress other components and reduce the lifespan of the unit. Food safety can also be affected if the refrigerator begins losing its ability to maintain proper temperatures.
How much does it typically cost to repair an F-111 error on an LG refrigerator?
Repair costs depend on the root cause. If the fix is simply reseating a loose wiring connector, there may be no parts cost, though a service call fee typically ranges from $75 to $150. If the condenser fan motor needs replacement, parts plus labor can range from $150 to $350 depending on the model and local labor rates. Replacing the main PCB, if required, is the most expensive scenario and can range from $200 to $500 or more.
Can I fix the F-111 error myself, or do I need a technician?
A homeowner comfortable working with appliances can safely check for obvious wiring issues such as a disconnected harness or a clearly damaged wire after unplugging the refrigerator. However, measuring the 7V to 12V feedback voltage at CN76 requires a multimeter and some knowledge of how to safely test live circuits, which is better suited for an experienced DIYer or a technician. If the motor itself needs replacement, the repair is moderate in difficulty and requires sourcing the correct fan motor for your specific model.
Will resetting my LG refrigerator clear the F-111 error code?
A power reset may temporarily clear the F-111 code, but the error will return if the underlying fault is still present. Resetting does not repair a defective wire, loose connector, or failed motor. A reset is only useful as a first step to confirm whether the fault is persistent or was caused by a temporary signal interruption.

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