LG Refrigerator Error Codes

LG Refrigerator Error Codes

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Error Code
Causes & Solutions
Freezer Sensor Defect

Issue:- Short-circuit or disconnection of the freezer sensor.

Possible Causes & Solutions:

  • Check for loose or damaged wiring connections.
  • Replace the freezer sensor if faulty.
  • Reset the appliance by unplugging it for a few minutes.
Refrigerator Sensor Defect

Issue:- Short-circuit or disconnection of the refrigerator sensor.

Possible Causes & Solutions:

  • Inspect the sensor wiring for breaks or loose connections.
  • Replace the refrigerator sensor if needed.
  • Perform a system reset by unplugging the appliance.
Pantry Sensor Defect

Issue:- Short-circuit or disconnection of the pantry sensor.

Possible Causes & Solutions:

  • Check the sensor and its wiring for any damage.
  • Replace the pantry sensor if malfunctions.
  • Restart the unit by unplugging it for a few minutes.
Ice-Room Sensor Defect

Issue:- Short-circuit or disconnection of the ice-room sensor.

Possible Causes & Solutions:

  • Ensure the sensor is properly connected.
  • Replace the ice-room sensor if defective.
  • Reset the appliance.
Freezer Defrosting Sensor Defect

Issue:- Short-circuit or disconnection of the freezer defrosting sensor.

Possible Causes & Solutions:

  • Inspect the wiring for faults and repair if necessary.
  • Replace the freezer defrosting sensor if damaged.
  • Unplug the unit and restart it.
Room Temperature Sensor Defect

Issue:- Short-circuit or disconnection of the room temperature sensor.

Possible Causes & Solutions:

  • Check the wiring for loose connections.
  • Replace the room temperature sensor if faulty.
  • Restart the appliance.
Humidity Sensor Defect

Issue:- Short-circuit or disconnection of the humidity sensor.

Possible Causes & Solutions:

  • Inspect for damaged wiring and reconnect as needed.
  • Replace the humidity sensor if necessary.
  • Unplug and reset the appliance.
Freezer Cubed Ice Maker Sensor Defect

Issue:- Short-circuit or disconnection of the freezer cubed ice maker sensor.

Possible Causes & Solutions:

  • Ensure the sensor wiring is intact.
  • Replace the ice maker sensor if defective.
  • Restart the unit.
Cubed Mini Ice Maker Sensor Defect

Issue:- Short-circuit or disconnection of the cubed mini ice maker sensor.

Possible Causes & Solutions:

  • Check sensor connections for loose or broken wires.
  • Replace the mini ice maker sensor if necessary.
  • Reset the appliance.
Ice Maker Kit Defect

Issue:- Malfunction of the ice maker motor.

Possible Causes & Solutions:

  • Inspect the motor for blockages or mechanical failure.
  • Replace the ice maker motor if faulty.
  • Perform a system reset.
Defect of Freezer Cubed Ice Maker Kit

Issue:- Malfunction of the Cubed Mini Ice Maker Motor.

Possible Causes & Solutions:

  • The motor may be faulty. Try resetting the ice maker by unplugging the appliance for a few minutes and plugging it back in.
  • Check for any ice blockages or debris affecting motor movement.
  • If the problem persists, replace the ice maker motor.
Defect of Cubed Mini Ice Maker Kit

Issue:- Malfunction of the Cubed Mini Ice Maker Motor.

Possible Causes & Solutions:

  • Inspect for motor obstructions and clear any ice buildup.
  • Reset the ice maker by turning the appliance off and on.
  • Consider replacing the ice maker motor if the issue continues.
Defect of Flow Meter

Issue:- Malfunction of the flow meter or lack of water supply.

Possible Causes & Solutions:

  • Ensure the water supply is properly connected and not blocked.
  • Check the flow meter for any damage or debris.
  • Replace the flow meter if necessary.
Failed Defrosting

Issue:- The defrosting sensor does not reach 40℉ (5℃) within 80 minutes after defrosting starts.

Possible Causes & Solutions:

  • Inspect the defrost heater and sensor for damage.
  • Make sure the defrost cycle is operating properly.
  • Replace the faulty sensor or heating element if required.
Abnormality of BLDC Fan Motor for Freezer

Issue:- No feedback signal from the fan motor for more than 65 seconds.

Possible Causes & Solutions:

  • Check for obstructions around the fan motor.
  • Inspect wiring connections for loose or damaged wires.
  • Replace the fan motor if necessary.
Abnormality of BLDC Fan Motor for Ice Maker

Issue:- No feedback signal from the fan motor for more than 65 seconds.

Possible Causes & Solutions:

  • Ensure the fan motor is not blocked or frozen.
  • Test the wiring and replace any damaged parts.
  • Install a new fan motor if the issue persists.
Abnormality of BLDC Fan Motor for Mechanic Room

Issue:- No feedback signal from the fan motor for more than 65 seconds.

Possible Causes & Solutions:

  • Inspect the motor for dust, debris, or ice buildup.
  • Check wiring connections and secure any loose wires.
  • Replace the fan motor if necessary.
Communication Error

Issue:- Communication error between main MICOM and display MICOM.

Possible Causes & Solutions:

  • Power cycle the appliance by unplugging it for a few minutes.
  • Check the wiring connections between the main and display MICOM.
  • If the error persists, contact LG support for further troubleshooting.
Sub Communication Error

Issue:- Communication error between main MICOM and sub MICOM.

Possible Causes & Solutions:

  • Restart the appliance to reset communication.
  • Inspect wiring and connections between MICOM components.
  • Consider professional servicing if the issue remains.
Wi-Fi Modem Error

Issue:- Defective Wi-Fi modem or communication error between display MICOM and Wi-Fi modem.

Possible Causes & Solutions:

  • Restart your appliance and router to refresh connectivity.
  • Check if the Wi-Fi modem is properly installed.
  • Replace the Wi-Fi modem if needed.
High Side Cycle Leakage

Issue:- Detected high-side refrigerant leak or restriction.

Possible Causes & Solutions:

  • Refrigerant leak: Contact a professional technician for leak detection and repair.
  • Compressor malfunction: Inspect the compressor and replace if faulty.
  • Faulty valve: Check for a defective valve and replace it if necessary.
Low Side Cycle Leakage

Issue:- Detected low-side refrigerant leak.

Possible Causes & Solutions:

  • Low refrigerant levels: Recharge refrigerant if needed.
  • Compressor failure: Inspect the compressor and replace if defective.
  • Door left open too long: Ensure the oven door is fully closed to maintain proper function.
Refrigerator Defrost Sensor Error

Issue:- Short circuit or disconnection of the defrost sensor.

Possible Causes & Solutions:

  • Inspect the defrost sensor for damage and replace it if necessary.
  • Check wiring connections for loose or broken wires.
Abnormality of BLDC Fan Motor for Refrigerator

Issue:- Feedback signal not received within 65 seconds during motor operation.

Possible Causes & Solutions:

  • Defective BLDC fan motor: Replace the fan motor if faulty.
  • Poor wiring connections: Inspect and secure all wiring connections.
UV Nano LED Module Error

Issue:- Malfunction in UV LED module or display connection.

Possible Causes & Solutions:

  • Faulty UV LED module: Replace the module if it is not working.
  • Loose connection: Secure the wiring between the display and UV module.
Abnormal Ice Maker Unit

Issue:- Ice maker step motor or HALL IC failure.

Possible Causes & Solutions:

  • Check for a faulty step motor and replace if needed.
  • Inspect the wiring for shorts or loose connections.
Water Tank Switch

Issue:- Water tank assembly issue or switch error.

Possible Causes & Solutions:

  • Ensure the water tank is properly installed.
  • Inspect the switch for malfunctions and replace if necessary.
Defrosting Sensor Error

Issue:- Short circuit or disconnection of the defrosting sensor.

Possible Causes & Solutions:

  • Replace the defective defrosting sensor.
  • Check for loose or damaged wiring.
Convertible Sensor Error

Issue:- Short circuit or disconnection of the pantry sensor.

Possible Causes & Solutions:

  • Inspect the pantry sensor and replace it if necessary.
  • Check for loose or damaged connections.
Auto Door Module Problem

Issue:- Hall sensor, motor, or auto door module connection failure.

Possible Causes & Solutions:

  • Inspect the hall sensor and motor for defects and replace them if necessary.
  • Check the module connections and secure any loose wires.
Auto Door Reed Switch Problem

Issue:- Auto door reed switch problem.

Possible Causes & Solutions:

  • Check the connector of the auto door reed switch for any loose or damaged wiring.
  • Ensure the reed switch is properly positioned and functioning.
  • If the issue persists, consider replacing the auto door reed switch.
Auto Drawer Module Problem (Left)

Issue:- Error of hall sensor, motor, or auto drawer module connection.

Possible Causes & Solutions:

  • Inspect the hall sensor and motor for proper operation.
  • Check the auto drawer module connection for loose or damaged wiring.
  • Replace faulty components if necessary.
Auto Drawer Reed Switch Problem (Left)

Issue:- Auto drawer reed switch problem on the left side.

Possible Causes & Solutions:

  • Check the connector of the auto drawer reed switch.
  • Ensure the reed switch is securely connected and functioning.
  • If defective, replace the reed switch.
Auto Drawer Module Problem (Right)

Issue:- Error of hall sensor, motor, or auto drawer module connection.

Possible Causes & Solutions:

  • Verify the hall sensor and motor are working correctly.
  • Inspect the auto drawer module connection for any damage.
  • Replace faulty components if needed.
Auto Drawer Reed Switch Problem (Right)

Issue:- Auto drawer reed switch problem on the right side.

Possible Causes & Solutions:

  • Auto drawer reed switch problem on the right side.
  • Ensure the reed switch is properly secured and operational.
  • Replace the switch if necessary.
Communication Problem

Issue:- Communication connection and transmission TR reception defect.

Possible Causes & Solutions:

  • Inspect the communication wiring between the LCD display and dispenser.
  • Reset the oven by unplugging it for a few minutes.
  • If the problem persists, professional service may be required.
Communication Error

Issue:- Communication error between Micom of Top Display PCB and Dispenser Micom.

Possible Causes & Solutions:

  • Verify the connections between the top display PCB and dispenser Micom.
  • Restart the oven to reset communication.
  • If the issue continues, consider replacing the affected component.
Freezer Defrosting Sensor Error

Issue:- Short or disconnection of defrost sensor.

Possible Causes & Solutions:

  • Check for loose or damaged wiring on the defrost sensor.
  • If the sensor is faulty, replace it to restore proper function.
Humidity Sensor Error

Issue:- Short or disconnection of humidity sensor.

Possible Causes & Solutions:

  • Inspect the humidity sensor wiring for damage.
  • Replace the humidity sensor if necessary.
Icing Sensor Error

Issue:- Short or disconnection of the icing sensor.

Possible Causes & Solutions:

  • Check for any loose or damaged wiring on the icing sensor.
  • Replace the sensor if it is malfunctioning.
Pantry Sensor Error (Optional)

Issue:- Short or disconnection of the pantry sensor.

Possible Causes & Solutions:

  • Check the sensor connections for any loose or damaged wires.
  • If the sensor is faulty, replace it with a compatible LG pantry sensor.
  • Reset the oven by unplugging it for a few minutes and reconnecting.
Room Temperature Sensor Error

Issue:- Short or disconnection of the room temperature sensor.

Possible Causes & Solutions:

  • Inspect the wiring and connectors of the room temperature sensor.
  • If a disconnection is found, securely reconnect it.
  • Replace the sensor if it is defective.
Ice Maker Kit Defect

Issue:- Electrical system error in the ice maker kit, including motor, gear, Hall IC, or operation circuit.

Possible Causes & Solutions:

  • Inspect the ice maker kit for visible damage or disconnections.
  • Reset the appliance by unplugging it for a few minutes and reconnecting it.
  • If the error persists, the ice maker kit may need replacement.
Freezer Defrosting Error

Issue:- If the defrost sensor does not reach 46°F (8°C) within 80 minutes, the error occurs.

Possible Causes & Solutions:

  • Check the defrost heater for functionality; replace if defective.
  • Ensure proper airflow and that vents are not blocked.
  • Inspect the defrost sensor and replace it if needed.
Abnormality of BLDC Fan Motor for Freezer

Issue:- The BLDC fan motor fails to provide feedback within 65 seconds.

Possible Causes & Solutions:

  • Inspect the freezer fan motor wiring for any disconnections.
  • If the motor is faulty, consider replacing it.
  • Ensure no obstructions are preventing the fan from operating.
Abnormality of BLDC Fan Motor for Mechanic Room

Issue:- The BLDC fan motor in the mechanic room does not provide feedback within 65 seconds.

Possible Causes & Solutions:

  • Check wiring connections of the mechanic room fan motor.
  • If the fan motor is defective, replace it.
  • Ensure the fan blades move freely and are not obstructed.
Communication Error

Issue:- Communication error between the main PCB Micom and the display Micom.

Possible Causes & Solutions:

  • Check the wiring and connections between the main PCB and display board.
  • Reset the range/oven by unplugging it for a few minutes.
  • If the problem persists, the main PCB or display board may need replacement.

LG Refrigerator LRTNC0705V

1. Normal Operation

Issue: No malfunction detected.
Indicator: Always Off.
Possible Causes & Solutions:

  • The appliance is functioning correctly, and no action is needed.


2. Refrigerator Sensor Error

Issue: The refrigerator room temperature sensor is either shorted or open.
Indicator: Blinks 3 times.
Possible Causes & Solutions:

  • Inspect the refrigerator temperature sensor wiring for disconnections or damage.

  • Replace the temperature sensor if faulty.

  • Restart the appliance by unplugging it for a few minutes.

3. Defrost Sensor Error

Issue: The defrost temperature sensor is either shorted or open.
Indicator: Blinks 1 time.
Possible Causes & Solutions:

  • Check the defrost sensor wiring for any damage or loose connections.

  • If the sensor is defective, replace it.

  • Ensure the defrost cycle operates correctly.

4. Room Temperature Sensor Error

Issue: The ambient temperature sensor is either shorted or open.
Indicator: Blinks 5 times.
Possible Causes & Solutions:

  • Inspect the ambient temperature sensor for wiring disconnections or faults.

  • If damaged, replace the sensor.

  • Reset the appliance by unplugging it for a few minutes.

5. Defrost Failure

Issue: After two hours of operation, the defrost sensor temperature does not exceed 13°C.
Indicator: Blinks 4 times.
Possible Causes & Solutions:

  • Check the defrost heater for functionality; replace it if necessary.

  • Ensure the defrost sensor is working correctly and replace it if needed.

  • Verify proper airflow and that vents are not blocked.

6. Knob Dial Error

Issue: The knob dial resistance is either shorted or open.
Indicator: Blinks 2 times.
Possible Causes & Solutions:

  • Inspect the knob dial connections for any damage or disconnections.

  • If the knob dial is faulty, replace it.

  • Ensure the dial is properly aligned and functioning.

7. Freezer Fan Motor Failure

Issue: The freezer fan is either locked or open.
Indicator: Blinks 6 times.
Possible Causes & Solutions:

  • Inspect the freezer fan motor for any obstructions preventing rotation.

  • Check the fan motor wiring for disconnections.

  • Replace the fan motor if it is defective.

 

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