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Error code reference

LG Refrigerator Error Code Er 6

Abnormal BLDC cooling fan motor

LG codesLG refrigerator codes

Abnormal BLDC cooling fan motor - motor defect, lead wire contact issue, fan blade obstruction, or no signal from BLDC motor for more than 115 seconds during fan motor operation.

First step from the service manual

Check BLDC fan motor lead wires for short or open circuit; check for mechanical obstruction of fan blade.

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

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What Er 6 means on a LG refrigerator

The Er 6 error code on an LG refrigerator indicates an abnormal condition in the BLDC (Brushless DC) cooling fan motor circuit. The control board monitors the feedback signal from the BLDC motor continuously during operation. If that signal is absent or out of range for more than 115 seconds while the fan motor is commanded to run, the board logs Er 6 and flags the motor circuit as defective. BLDC motors are used in LG refrigerators because they offer precise speed control and energy efficiency, but they rely on a continuous feedback loop between the motor and the control board to confirm proper operation.

The fault can originate from several points in the motor circuit. A short or open circuit in the motor lead wires is one of the most common electrical causes, as damaged insulation or a loose connector can interrupt the feedback signal entirely. A mechanical obstruction of the fan blade, such as ice buildup or a foreign object lodged in the fan housing, can stall the motor and prevent it from generating any signal. A failed motor winding or internal motor defect will also produce this code, since the motor cannot spin and therefore cannot send feedback to the board.

Diagnosis begins with a visual and continuity inspection of the BLDC motor lead wires, checking for pinched, frayed, or disconnected wiring at both the motor connector and the control board connector. The fan blade should be manually checked for free rotation and inspected for any ice accumulation or physical obstruction. If wiring and mechanical clearance check out, the motor itself is likely defective and will require replacement.

Source: manufacturer service documentation.

Common causes of Er 6

  1. 01

    Fan Blade Mechanical Obstruction

    Wiring / connection

    Ice buildup, food debris, or a foreign object can block the fan blade from spinning. Manually rotate the blade to check for resistance or stalling.

  2. 02

    Damaged or Disconnected Lead Wires

    Wiring / connection

    The wiring harness connecting the BLDC motor to the control board can develop a short or open circuit from pinching, chafing, or a loose connector. Inspect the full length of the lead wires and check continuity with a multimeter.

  3. 03

    Failed BLDC Fan Motor

    Part replacement

    Internal motor winding failure or a defective rotor prevents the motor from spinning and generating the feedback signal the control board requires. If wiring and obstructions are ruled out, the motor itself is the likely failed component.

  4. 04

    Connector Corrosion or Poor Contact

    Wiring / connection

    Corrosion or moisture at the motor connector pins can create intermittent or total loss of signal without visibly broken wiring. Inspect the connector terminals for oxidation or bent pins.

  5. 05

    Control Board Fault

    Part replacement

    If the motor, wiring, and connectors all test correctly, the control board may be failing to send the run command or read the feedback signal properly. This is the least common cause and should be diagnosed only after all other components are confirmed good.

See the test procedure for each cause

Frequently asked questions about Er 6

What does Er 6 mean on a LG refrigerator?
Er 6 means the control board detected an abnormal or missing signal from the BLDC cooling fan motor for more than 115 seconds during operation. The cause can be a motor defect, damaged lead wires, a loose connector, or a physical obstruction blocking the fan blade. The refrigerator logs this code to alert you that the cooling fan circuit is not functioning correctly, which can affect temperature management if left unaddressed.
Can I fix Er 6 on my LG refrigerator myself?
Some causes of Er 6 are DIY-friendly. Clearing ice or debris from the fan blade, reconnecting a loose wire harness connector, or thawing out an iced-over fan area can resolve the code without professional help. If the motor winding has failed or the lead wires are internally damaged, replacing the fan motor is a more involved repair but is manageable for experienced DIYers with the correct replacement part.
Is it safe to keep using my LG refrigerator when Er 6 is displayed?
Operating the refrigerator with an active Er 6 code is not recommended for extended periods. A non-functioning cooling fan means the refrigerator and freezer compartments may not maintain safe temperatures, which puts food at risk of spoilage. Address the fault as soon as possible to avoid food loss and potential secondary damage to other components from overheating.
Will resetting my LG refrigerator clear the Er 6 code?
A power reset may temporarily clear the Er 6 display, but the code will return if the underlying fault is still present. Unplugging the refrigerator for a few minutes and restoring power can be useful as a first step to see if the error was a one-time signal glitch, but a persistent reappearance of Er 6 means the fan motor circuit needs to be physically inspected and repaired.
How much does it cost to repair an LG refrigerator with an Er 6 error?
Repair costs depend on the cause. If only a connector needs to be reseated or minor ice cleared, the cost can be minimal or limited to a service call fee, typically in the range of $75 to $150. If the BLDC fan motor itself needs replacement, parts and labor together commonly run between $150 and $350 depending on the specific model and the technician's labor rate in your area.

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