mypros+
Error code reference

LG Refrigerator Error Code F-111

C-FAN Error

LG codesLG refrigerator codes

C-FAN Error - occurs when related fan motor (condenser fan) operates but feed back signal wire contact is defective, motor wire is slipped out, or motor is defective.

First step from the service manual

Check voltage between MAIN PCB CN76 #5 (Sky-blue) and #1 (Gray); should be within 7V~12V.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for F-111.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What F-111 means on a LG refrigerator

The F-111 error code on an LG refrigerator indicates a condenser fan (C-FAN) motor fault. The condenser fan is responsible for drawing air across the condenser coils to dissipate heat generated during the refrigeration cycle. When this fan is not operating correctly or its feedback signal cannot be confirmed by the main control board, the refrigerator triggers F-111 to alert that cooling efficiency may be compromised. The error can appear even when the motor is physically spinning, because the fault detection is based on the feedback signal circuit rather than direct observation of motor movement.

The root cause is typically one of three conditions: a defective or broken feedback signal wire connection between the fan motor and the main PCB, a motor wiring harness that has slipped out of its connector, or a fully failed fan motor. The main PCB monitors the condenser fan through connector CN76, specifically between pin 5 (Sky-blue wire) and pin 1 (Gray wire). The expected feedback voltage on this circuit should fall within the 7V to 12V range during normal fan operation. A reading outside this range points to a wiring or motor issue that requires further investigation.

Because the condenser fan plays a direct role in heat rejection, a sustained F-111 fault can cause the refrigerator to run warm or cycle compressor components under thermal stress. Technicians should begin diagnosis at CN76 on the main PCB, measuring the voltage between the Sky-blue and Gray wires before replacing any components. This step will help distinguish between a wiring/connection problem and an actual motor failure, preventing unnecessary part replacements.

Source: manufacturer service documentation.

Common causes of F-111

  1. 01

    Loose or disconnected motor wiring harness

    Wiring / connection

    The fan motor wiring connector may have slipped out of the main PCB at CN76 or at the motor itself. Inspect both ends of the harness for secure seating and check for any pins that may have backed out of the connector housing.

  2. 02

    Defective feedback signal wire

    Wiring / connection

    The Sky-blue feedback wire between pin 5 of CN76 and the fan motor may be damaged, pinched, or have a broken conductor. A voltage reading outside the 7V to 12V range at CN76 with the harness connected suggests this wire is the fault point.

  3. 03

    Failed condenser fan motor

    Part replacement

    The fan motor itself may have failed internally, causing it to either stop running or lose its ability to send a proper feedback signal. If wiring and connections check out and voltage at CN76 is still out of range, the motor should be replaced.

  4. 04

    Corroded or damaged connector pins at CN76

    Wiring / connection

    Moisture or heat exposure near the condenser area can cause corrosion on the CN76 connector pins, increasing resistance and disrupting the feedback signal. Inspect the connector for oxidation, bent pins, or heat discoloration.

  5. 05

    Faulty main PCB

    Part replacement

    If all wiring and the motor test correctly but the F-111 error persists, the main PCB may not be processing the feedback signal accurately. This is the least likely cause and should only be considered after all other components are confirmed good.

See the test procedure for each cause

Frequently asked questions 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.
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.
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.
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.
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.

Related LG refrigerator codes

All LG refrigerator codes
View all 485 LG refrigerator codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass