LG Refrigerator Error Codes

Issue:- The oven sensor (thermistor) remains open for over 1 minute during cooking.

Possible Causes & Solutions:

• A faulty oven temperature sensor may be the cause. Try resetting the appliance by unplugging it for a few minutes and then restarting.
• If the error persists, inspect the sensor wiring for damage and replace it if necessary.

Issue:- The oven sensor (thermistor) is shorted for over 1 minute during cooking.

Possible Causes & Solutions:

• A defective oven sensor may need replacement.
• Check the sensor connection and ensure there are no loose or broken wires.
• Reset the oven by unplugging it for a few minutes before turning it back on.

Issue:- Some keys remain continuously shorted for over 60 seconds.

Possible Causes & Solutions:

• A stuck or faulty keypad can trigger this error. Clean the control panel and check if any button is jammed.
• If the problem continues, replacing the touchpad or control board may be necessary.

Issue:- The oven temperature exceeds 650°F continuously for 2 minutes during cooking (except in self-cleaning mode).

Possible Causes & Solutions:

• This could indicate a faulty temperature sensor or thermostat. Inspect and replace if needed.
• Check the oven control board for malfunctions.
• Reset the oven by unplugging it for 5 minutes before restarting.

Issue:- The oven temperature does not exceed 150°F within 5 minutes of preheating while the door is closed.

Possible Causes & Solutions:

• Check the heating element or burner for faults and replace if necessary.
• Inspect the oven sensor and wiring connections.
• Ensure proper power supply and voltage to the appliance.

Issue:- : A short error was detected in the right oven probe sensor.

Possible Causes & Solutions:

• The temperature probe may be faulty or have a short circuit. Try replacing the probe.
• Check the probe connection to ensure it is securely plugged in.

Issue:- The door lock mechanism fails during operation.

Possible Causes & Solutions:

• A faulty door lock motor or switch may be the problem. Inspect and replace if necessary.
• Ensure that the door latch is not obstructed or misaligned.

Issue:- Communication error between the cooktop PCB and oven PCB occurs for over 10 seconds in self-clean mode.

Possible Causes & Solutions:

• A loose or faulty wiring connection between the cooktop and oven PCB may be the issue. Inspect and secure the wiring.
• Reset the oven and check if the error clears. If not, a replacement PCB may be needed.

Issue:- The left front (LF) top sensor is either open or shorted.

Possible Causes & Solutions:

• Inspect the LF sensor for any damage or disconnection. Replace it if necessary.
• Check the wiring harness for loose connections.

Issue:- The left rear (LR) top sensor is either open or shorted.

Possible Causes & Solutions:

• Inspect the LR sensor and replace it if faulty.
• Ensure proper wiring connections to the sensor module.
• For persistent issues, always consult your LG Range & Oven user manual or contact an authorized LG service technician for professional assistance.

Issue:- The RF (Right Front) top sensor is either open or shorted.

Possible Causes & Solutions:

• Check the wiring connection of the RF top sensor and secure any loose connections.
• If the sensor is faulty, replace it with a compatible part.

Issue:- The RR (Right Rear) top sensor is either open or shorted.

Possible Causes & Solutions:

• Inspect the sensor for damage or disconnection.
• Reconnect or replace the RR top sensor if necessary.

Issue:- The left IGBT (Insulated Gate Bipolar Transistor) sensor is either open or shorted.

Possible Causes & Solutions:

• Verify the sensor’s connection and wiring.
• Replace the left IGBT sensor if it is defective.

Issue:- The right IGBT sensor is either open or shorted.

Possible Causes & Solutions:

• Inspect the wiring for damage and reconnect any loose cables.
• Replace the right IGBT sensor if it is malfunctioning.

Issue:- Communication error at the left module.

Possible Causes & Solutions:

• Check for loose or damaged wiring between the left module and the control board.
• If the issue persists, consider replacing the control module.

Issue:- Communication error at the right module.

Possible Causes & Solutions:

• Ensure all wiring connections to the right module are secure.
• Replace the module if necessary.

Issue:- Excessive current detected.

Possible Causes & Solutions:

• Inspect the power supply and control board for abnormalities.
• If the issue persists, a technician should evaluate the range for potential electrical faults.

Issue:- Overvoltage detected at the cooktop.

Possible Causes & Solutions:

• Verify that the power supply is within the recommended voltage range.
• Consider using a voltage regulator if fluctuations are common.

Issue:- The box fan is not working properly.

Possible Causes & Solutions:

• Ensure the fan is not obstructed by debris or grease buildup.
• If the fan is defective, replace it with a compatible unit.

Issue:- The convection fan cannot be detected for over 1 minute while operating.

Possible Causes & Solutions:

• Check if the convection fan motor is functioning.
• Clean or replace the fan if it is not spinning properly.
• Inspect and replace the fan wiring or control board if needed.

Issue:- Cooling fan is stalled during self-clean.

Possible Causes & Solutions:

• The cooling fan may be obstructed or defective. Inspect for debris and clean if necessary.
• If the issue persists, the fan motor may need replacement. Contact LG support for further assistance.

Issue:- Oven thermistor is open.

Possible Causes & Solutions:

• A disconnected or faulty oven temperature sensor can trigger this error. Check the sensor connection and wiring.
• Replace the thermistor if it is damaged.

Issue:- Oven thermistor is shorted.

Possible Causes & Solutions:

• A shorted oven temperature sensor can cause inaccurate temperature readings. Inspect the sensor and replace it if needed.

Issue:- Oven temperature exceeds 650°F for more than 2 minutes during cooking (except self-clean).

Possible Causes & Solutions:

• A faulty oven sensor may be causing overheating. Check and replace if necessary.
• The control board may be malfunctioning. A reset or replacement might be required.

Issue:- Lower oven probe is shorted.

Possible Causes & Solutions:

• Check the oven probe connection for damage or disconnection.
• If the probe is defective, replace it with a compatible LG probe.

Issue:- The oven does not heat up more than 10°F within 5 minutes (except in Proof or Warm mode).

Possible Causes & Solutions:

• A faulty heating element or igniter can cause this issue. Inspect and replace as needed.
• Check the oven's power supply to ensure proper voltage.

Issue:- The door lock fails while operating the lock motor.

Possible Causes & Solutions:

• A faulty door lock mechanism may need replacement.
• Check the wiring and connections for any loose or damaged parts.

Issue:- The oven thermistor remains open for more than 60 seconds after cooking starts.

Possible Causes & Solutions:

• A disconnected or broken sensor may cause this error. Inspect and replace the sensor if necessary.

Issue:- The oven thermistor remains shorted for more than 60 seconds after cooking starts.

Possible Causes & Solutions:

• A shorted sensor may cause inaccurate temperature readings. Replace the sensor to restore proper functionality.

Issue:- Oven temperature exceeds 650°F continuously for more than 2 minutes during cooking (except self-cleaning).

Possible Causes & Solutions:

• A defective temperature sensor or control board can lead to overheating. Inspect and replace as needed.
• Avoid using high heat settings for extended periods to prevent overheating issues.

Issue:- The oven is not heating, except in specific modes such as Proof, Warm, SpeedClean, SteamClean, Drying, Descaling, and SousVide.

Possible Causes & Solutions:

• Case 1: If the start temperature does not exceed 130°F, the oven temperature is less than or equal to 150°F, and the max oven temperature does not rise more than 10°F above the start temperature within 5 minutes while preheating with the door closed.
• Solutions Ensure the oven door is properly closed. Check the oven heating element for any damage or failure. Restart the oven and try preheating again.
• Case 2: If the oven temperature is below 100°F after 5 minutes of preheating with the door closed.
• Solutions Inspect and replace the heating element if faulty. Check the power supply and ensure the oven is receiving adequate voltage.

Issue:- The door lock motor fails while operating.

Possible Causes & Solutions:

• The door lock mechanism may be obstructed or malfunctioning.
• Power cycle the oven by unplugging it for a few minutes and then restarting.
• Inspect the door lock assembly for damage and replace it if necessary.
• If the issue persists, contact LG support for further assistance.

Issue:- The steam thermistor remains open for 10 seconds after the steam heater has operated for 5 minutes.

Possible Causes & Solutions:

• A faulty or disconnected steam sensor.
• Check the wiring connections of the steam thermistor and reconnect if loose.
• If the thermistor is defective, replace it.
• Reset the oven and attempt to operate the steam function again.

Issue:- The steam thermistor remains shorted for over 60 seconds after the steam heater has operated.

Possible Causes & Solutions:

• A defective or short-circuited steam thermistor.
• Inspect the thermistor wiring for any signs of damage or short circuits.
• Replace the thermistor if it is determined to be faulty.
• Reset the oven by unplugging it for a few minutes before trying again.