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Error codes on analog display models

  • Troubleshooting

Error codes on analog display models

Compare the LED pattern on the internal display with the images below:

  • The set temperature is displayed
    Status: Normal Operation (The unit is operating properly)
Normal LED Display Pattern
Normal LED Display Pattern

Freezer Sensor Error (FS) (Display shows -17°C, -18°C, -20°C, -23°C)

  • This error indicates a malfunction with the freezer sensor. This requires a professional inspection.

※ Please request service for an accurate diagnosis.

Error Code Display: LEDs -17 °C, -18 °C, -20 °C, and -23 °C are illuminated.

Refrigerator Sensor Error (rS) (LEDs lit at -15°C, -17°C, -20°C, and -23°C)

  • This error indicates a malfunction with the refrigerator sensor. This requires a professional inspection.

※ Please request service for an accurate diagnosis.

Error Code Display: LEDs -15 °C, -18 °C, -20 °C, and -23 °C are illuminated.

Freezer Defrost Sensor Error (dS) (LEDs lit at -15°C, -17°C, -20°C, and -23°C)

  • This error indicates a malfunction with the freezer defrost sensor. This requires a professional inspection.

※ Please request service for an accurate diagnosis.

Error Code Display: LEDs -15 °C, -17 °C, -20 °C, and -23 °C are illuminated.

External Sensor Error (rT) (LEDs lit at -17°C, -20°C, and -23°C)

  • This error indicates a malfunction with the external sensor. This requires a professional inspection.

※ Please request service for an accurate diagnosis.

Error Code Display: LEDs -17 °C, -20 °C, and -23 °C are illuminated.

Freezer Defrost Fault (dH / FdH / dHF) (LEDs lit at -15°C, -17°C, -18°C, and -20°C)

  • This error indicates a malfunction in the defrost system, likely caused by ice buildup, a blown thermal fuse, heater failure, or a main board (PCB) issue.
    The error code displays if the unit fails to detect the expected temperature change within a set time after the defrost cycle begins.

※ Please request service for an accurate diagnosis.

Error Code Display: LEDs -15 °C, -17 °C, -18 °C, and -20 °C are illuminated.

Freezer Fan Motor Error (FF) (LEDs lit at 7°C, 3°C, 2°C, and 1°C)

  • This error indicates an issue with the freezer fan motor. It can also occur if ice buildup blocks the fan.
    Unplug the unit and leave the doors open for at least 8 hours to clear the ice buildup.
    If you are concerned about food spoilage during this process, we recommend scheduling a service for an accurate diagnosis.
  • Try this
    1. 1. Transfer your food to a backup refrigerator or cooler if available.
    2. 2. Unplug the power cord from the outlet.
    3. 3. Leave both the freezer and refrigerator doors completely open for at least 8 hours to allow the ice to melt.
    4. 4. Use dry towels to wipe up any water inside or around the unit after the ice melts.
    5. 5. Plug the unit back in. It may take 24 to 48 hours for the refrigerator to return to optimal cooling temperatures.

※ If the error persists after these steps, please schedule a service appointment for a professional diagnosis.

Error Code Display: LEDs 7 °C, 3 °C, 2 °C, and 1 °C are illuminated.

Condenser Fan Motor Error (CF) (LEDs lit at 5°C, 3°C, 2°C, and 1°C)

  • This error indicates a malfunction in the fan motor located in the sealed system at the rear of the refrigerator, which helps release heat from the compressor.
    The display will show error code "C" or "E CF" (fan motor issue in the sealed system).
    This usually happens when the fan motor fails, but it can also be caused by disconnected wiring or a problem with the main board.

※ If the error persists after these steps, please schedule a service appointment for a professional diagnosis.

Error Code Display: LEDs 5 °C, 3 °C, 2 °C, and 1 °C are illuminated.

Cycle Error (LEDs lit at -15°C, -18°C, and -23°C)

  • A cycle error may cause poor cooling. This error code indicates that inspection is required.

※ Please request service for an accurate diagnosis.

Error Code Display: LEDs -15 °C, -18 °C, and -23 °C are illuminated.

※ If the error persists after these steps, please contact LG Customer Support to schedule a service appointment for a professional diagnosis.

This guide was created for all models, so the images or content may be different from your product.

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