How to Fix LG Combi Refrigerator Error Codes Using LED Light Signals

Are you facing an LG combi refrigerator error code displayed by LED lights? Don’t worry! This blog post will guide you through understanding and troubleshooting common error codes. We’ll break down the meaning of these codes and provide practical solutions to get your refrigerator back up and running smoothly.

Understanding LG Combi Refrigerator Error Codes: Troubleshooting LED Light Displays

CF: Condenser fan error.

The combination of temperature LEDs 1, 2, 3, and 7 lit up on your LG refrigerator’s fridge section is equivalent to the CF error code. This indicates a potential issue with the condenser fan motor, which is responsible for cooling the compressor.

Here are the possible causes and solutions:

• Condenser fan motor failure: This is the most common cause of the CF error code.
• Wire disconnection: A loose or disconnected wire can also cause the CF error code. Check all the wires connected to the fan motor and ensure they are securely in place.
• Main board issue: In some cases, the main board may be faulty and needs to be replaced.

Here are some troubleshooting steps you can try before calling a technician:

1. Reset the refrigerator: Unplug the refrigerator for 5 minutes, then plug it back in. This may reset the error code and resolve the issue.
2. Check the fan motor: If you can access the fan motor, you can visually inspect it for any damage or debris. You can also try manually rotating the fan blades to see if it moves freely. or replace it if neccessary.
3. Clean the condenser coils: The condenser coils are located at the back of the refrigerator. If they are dirty, they can prevent the refrigerator from cooling properly. Clean the coils with a vacuum cleaner or a brush.

FF: Freezer fan error.

The combination of temperature LEDs 1, 2, 3, and 5 lit up on your LG refrigerator’s fridge section is equivalent to the FF error code. This indicates an issue with the freezer fan motor, which is responsible for cooling the freezer compartment.

Here are the possible causes and solutions:

• Frezzer fan motor failure: This is the most common cause of the FF error code.
• Ice buildup: Excessive ice buildup around the fan motor can prevent it from spinning freely. Defrost the freezer compartment to remove the ice buildup.
• Wire disconnection: A loose or disconnected wire can also cause the FF error code. Check all the wires connected to the fan motor and ensure they are securely in place.
• Main board issue: In some cases, the main board may be faulty and needs to be replaced.

Here are some troubleshooting steps you can try before calling a technician:

1. Reset the refrigerator: Unplug the refrigerator for 5 minutes, then plug it back in. This may reset the error code and resolve the issue.
2. Defrost the freezer: Defrost the freezer compartment to remove any ice buildup around the fan motor.
3. Check the fan motor: If you can access the fan motor, you can visually inspect it for any damage or debris. You can also try manually rotating the fan blades to see if it moves freely.

dS: Defrost sensor error

The combination of temperature LEDs -23, -20, -17, and -15 lit up on your LG refrigerator’s freezer section is equivalent to the dS error code. This indicates an issue with the defrosting sensor, which is responsible for monitoring the temperature during the defrost cycle.

Here are the possible causes and solutions:

• Defrosting sensor failure: This is the most common cause of the dS error code.
• Wiring issue: A loose or damaged wire connecting the defrosting sensor to the main control board can also cause the error. Check the wiring for any damage or loose connections.

FS Error Code (Freezer Sensor Error):

• LED Combination: -23, -20, -18, and -17 are lit.

The FS error code on your LG refrigerator indicates a problem with the freezer temperature sensor. This sensor is responsible for monitoring the temperature in the freezer compartment and sending this information to the main control board.

Possible Causes:

1. Defective Freezer Sensor: The sensor itself might be faulty, preventing accurate temperature readings.
2. Wiring Issues: Loose or damaged wires connecting the sensor to the control board can disrupt communication and trigger the error.

RT Error Code (Room temperature Sensor Error):

• LED Combination: -23, -20, and -17 are lit.

The RT error code on your LG refrigerator indicates a problem with the room temperature sensor. This sensor monitors the ambient temperature and helps the refrigerator adjust its cooling output accordingly.

Possible Causes:

1. Faulty Room Temperature Sensor: The sensor itself might be defective, leading to inaccurate temperature readings.
2. Wiring Issues: Loose or damaged wires connecting the sensor to the control board can disrupt communication and trigger the error.
3. Main Control Board Malfunction: In some cases, the main control board might be faulty, leading to incorrect interpretations of sensor data.

RS Error Code (Refrigerator Sensor Error):

• LED Combination: -23, -20, -18 and -17 are lit.

The Rs error code on your LG refrigerator indicates a problem with the refrigerator sensor.

Possible Causes:

1. Wiring Issues: Loose or damaged wires connecting the sensor to the control board can disrupt communication and trigger the error.
2. Defective Refrigerator Sensor: The sensor itself might be faulty, preventing accurate temperature readings.

dH Error Code (Defrost heater Error):

• LED Combination: -20, -18, -17 and -15 are lit.

The dH error code on your LG refrigerator indicates a defrosting failure, specifically in the freezer compartment. This means the refrigerator is unable to properly defrost, leading to ice buildup and potential cooling issues.

Possible Causes:

1. Ice Buildup: Excessive ice buildup on the evaporator coils can prevent proper defrosting.
2. Defrost Thermo-Fuse Issue: The thermo-fuse might be malfunctioning.
3. Defrost Heater Malfunction: The defrost heater, responsible for melting ice, might be faulty or not functioning correctly.
4. Control Board Failure: In some cases, the main control board might be faulty, affecting the defrost cycle.

Troubleshooting Steps:

Here are some basic troubleshooting steps you can try:

1. Manual Defrost: If there’s significant ice buildup, manually defrost the freezer. Unplug the refrigerator, remove all food items, and allow the ice to melt completely.
2. Check the Defrost Drain Hole: Ensure the drain hole is clear of any obstructions. Clean it with a cotton swab or a small brush.
3. Inspect the Defrost Heater: If you have the technical expertise, you can visually inspect the defrost heater and or thermo-fuse for any damage.