mypros+
Error code reference

LG Refrigerator Error Code F2 F3

Condenser fan error displayed on panel.

LG codesLG refrigerator codes

Condenser fan error displayed on panel.

First step from the service manual

Reset the unit and enter Test Mode 1, check condenser fan motor voltage at CON8.

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 F2 F3.

  • 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 F2 F3 means on a LG refrigerator

The F2 F3 error code on an LG refrigerator indicates a condenser fan motor fault detected by the control board. The condenser fan is responsible for drawing air across the condenser coils to dissipate heat from the refrigeration system. When this fan fails to operate within expected parameters, the refrigerator loses its ability to reject heat efficiently, which can cause compressor overheating, reduced cooling performance, and potential system shutdown.

Diagnosing this error begins with a unit reset followed by entry into Test Mode 1, where the condenser fan motor voltage at connector CON8 can be measured directly. This step determines whether the control board is sending the correct signal to the fan motor or whether the fault lies in the motor itself, the wiring harness, or the connector. A missing or incorrect voltage reading at CON8 points toward a control board or wiring issue, while correct voltage with a non-functioning motor indicates a failed motor.

Common contributing factors include debris accumulation around the condenser fan blades causing mechanical resistance or seizure, a burned-out fan motor winding, damaged or corroded wiring between the control board and the motor, and failed motor capacitors or bearings. Because the condenser fan runs continuously when the compressor is active, it is subject to significant wear over time and is one of the more frequently replaced components in refrigerator sealed system support circuits.

Source: manufacturer service documentation.

Common causes of F2 F3

  1. 01

    Failed condenser fan motor

    Part replacement

    The fan motor windings can burn out over time, causing the motor to stop spinning entirely. If correct voltage is confirmed at CON8 in Test Mode 1 but the motor does not run, the motor itself has likely failed and needs replacement.

  2. 02

    Debris obstructing fan blades

    Wiring / connection

    Dust, pet hair, or debris can accumulate around the condenser fan and physically block or seize the blades. Inspect the fan area for obstructions and manually rotate the blade to check for mechanical resistance.

  3. 03

    Damaged or loose wiring at CON8

    Wiring / connection

    The wiring harness connecting the control board to the condenser fan motor at connector CON8 can develop corrosion, breaks, or loose connections. No voltage reading at CON8 during Test Mode 1 suggests a wiring or connector issue.

  4. 04

    Control board not sending output signal

    Part replacement

    If CON8 shows no voltage despite a functioning wiring harness, the main control board may have failed and is not sending the run signal to the condenser fan motor circuit.

  5. 05

    Worn motor bearings

    Part replacement

    Bearing wear can cause the motor to draw excessive current, run intermittently, or seize under load even if windings are intact. An unusual grinding or humming noise from the fan area is a common indicator.

See the test procedure for each cause

Frequently asked questions about F2 F3

What does F2 F3 mean on a LG refrigerator?
The F2 F3 error code indicates a condenser fan motor fault. The control board has detected that the condenser fan, which moves air across the condenser coils to release heat, is not operating correctly. This can affect the refrigerator's ability to maintain proper temperatures. Diagnosis involves checking the fan motor voltage at connector CON8 using Test Mode 1.
Can I fix the F2 F3 error myself?
Some causes are DIY-accessible, such as clearing debris from the condenser fan area or reseating a loose connector at CON8. However, replacing the condenser fan motor or the main control board requires disassembly and basic electrical knowledge. If you are not comfortable checking voltage readings or working around refrigeration components, a qualified technician is recommended.
Is it safe to keep using my refrigerator when the F2 F3 code is showing?
Continuing to run the refrigerator with a condenser fan fault is not advisable. Without proper condenser cooling, the compressor can overheat, which may cause permanent damage to the sealed system. Food safety is also at risk if temperatures rise above safe levels. The issue should be diagnosed and resolved promptly.
Will resetting the refrigerator clear the F2 F3 error?
A reset is the recommended first step and can clear the code if the fault was a temporary sensor or control glitch. However, if the underlying cause is a failed fan motor, damaged wiring, or a faulty control board, the error will return after the reset. The reset also allows entry into Test Mode 1, which is needed for proper diagnosis.
How much does it cost to repair an F2 F3 error on an LG refrigerator?
Repair costs vary depending on the failed component. A condenser fan motor typically costs between $30 and $80 for the part, while a main control board can range from $100 to $250 or more. Adding professional labor, total repair costs generally fall between $100 and $400 depending on the diagnosis and your location.

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