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Error code reference

LG Refrigerator Error Code Error6

Freezer BLDC fan motor abnormal

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Freezer BLDC fan motor abnormal - defective motor, fan snagged with power cable, fan structure contact, short or open circuit in motor wiring (no motor signal for more than 115 seconds during motor operation).

First step from the service manual

Check motor wiring and fan for obstructions; verify motor signal.

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

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What Error6 means on a LG refrigerator

Error6 on an LG refrigerator indicates an abnormal condition in the freezer compartment BLDC (Brushless DC) fan motor. The control board monitors the motor's feedback signal continuously during operation, and if that signal is absent for more than 115 seconds, the error is triggered. BLDC motors rely on a pulse or tachometer signal to confirm rotation speed, so any interruption in that signal whether from a mechanical stoppage or an electrical fault will cause the board to log this code and halt the fan.

The most common physical causes include ice buildup or a misrouted power cable making contact with the fan blade, causing the blade to snag and stop spinning. A fan blade that has shifted on its shaft can also contact surrounding structures, creating the same result. In these cases the motor itself may be fully functional, but the obstruction prevents rotation and the signal drops out.

On the electrical side, the fault can stem from a short circuit or open circuit in the motor wiring harness, a failed motor winding, or a damaged connector between the motor and the control board. Technicians should inspect the wiring harness for pinched or chafed insulation, check connector seating, and verify that the motor produces a valid signal when powered. If wiring checks out, resistance testing of the motor windings will help determine whether the motor itself has failed internally.

Source: manufacturer service documentation.

Common causes of Error6

  1. 01

    Fan blade obstructed by ice buildup

    Wiring / connection

    Ice can accumulate around the freezer fan housing and physically block the blade from spinning. Defrosting the freezer completely and checking for free blade rotation is the first step.

  2. 02

    Power cable or wiring snagged on fan blade

    Wiring / connection

    A misrouted wire or power cable can contact the spinning blade, stalling the motor. Inspect the fan housing area for any cables that have shifted into the blade's path.

  3. 03

    Fan blade contacting surrounding structure

    Part replacement

    If the blade has shifted on its shaft or the motor mount has loosened, the blade may rub against the fan shroud or housing wall. Check for physical contact marks and verify the blade is secure and centered.

  4. 04

    Open or short circuit in motor wiring harness

    Part replacement

    Damaged, pinched, or chafed wiring between the motor and control board can interrupt the motor signal. Visually inspect the harness for damage and check connector seating at both ends.

  5. 05

    Defective BLDC fan motor

    Part replacement

    Internal winding failure in the motor itself will cause a loss of the feedback signal even when power is present. If wiring and obstructions are ruled out, resistance testing of the motor windings will confirm whether the motor has failed and needs replacement.

See the test procedure for each cause

Frequently asked questions about Error6

What does Error6 mean on a LG refrigerator?
Error6 means the control board detected no signal from the freezer BLDC fan motor for more than 115 seconds during operation. This points to a problem with the fan motor itself, a physical obstruction blocking the blade, or a fault in the motor wiring. The freezer fan is responsible for circulating cold air, so this error can lead to rising temperatures if not addressed promptly.
How do I fix Error6 on my LG refrigerator?
Start by unplugging the refrigerator and inspecting the freezer fan for ice buildup, misrouted cables, or blade contact with surrounding surfaces. Defrost the freezer if ice is present, and reposition any wiring that may be touching the blade. If the fan spins freely and wiring looks intact, the motor itself or its wiring harness may need to be tested and possibly replaced.
Will resetting my LG refrigerator clear the Error6 code?
A power reset may temporarily clear the code, but if the underlying cause is not resolved, the error will return once the control board detects no motor signal again for 115 seconds. Resetting is useful as a diagnostic step after making a repair, but it is not a permanent fix on its own.
Is it safe to keep using my LG refrigerator when Error6 is displayed?
Continuing to run the refrigerator with Error6 active is not recommended. Without the freezer fan operating correctly, cold air cannot circulate properly, and freezer temperatures will rise. This puts frozen food at risk and can cause the compressor to work harder than normal, potentially leading to additional problems.
How much does it cost to repair an LG refrigerator Error6 fault?
If the issue is simply an obstruction like ice or a misrouted cable, the repair may cost nothing beyond your time. If the fan motor needs replacement, parts alone typically range from $30 to $100 depending on the model, with professional labor adding $80 to $200 or more. Wiring harness repairs fall somewhere in between depending on the extent of the damage.

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