LG Refrigerator Compressor Not Turning On? Simple Fixes You Can Try

If your LG refrigerator compressor isn’t turning on, it can cause serious cooling issues, leading to spoiled food. The compressor is essential for circulating refrigerant and maintaining the internal temperature of your fridge. Without a working compressor, your refrigerator cannot function properly. In this article, we'll explore the common causes of this issue and provide simple fixes you can try before calling a professional technician.

Common Causes and Fixes for LG Refrigerator Compressor Not Turning On

When your LG refrigerator compressor fails to turn on, there could be several reasons behind the malfunction. By being aware of these reasons, you can find the source of the issue and take the necessary action. Below are some of the most common issues and how to fix them.

1. Power Supply Issues

A simple power supply problem could prevent the compressor from turning on. The compressor won't start if the refrigerator isn't getting enough power.

Fix:

• Verify the power cord: Ensure that the refrigerator is plugged into a functional power outlet. Check for any damage on the cord that might prevent electricity from getting to the appliance.

• Inspect the circuit breaker: Your refrigerator can sometimes trip the circuit breaker, cutting power to it. Check if the breaker has been tripped at your home’s electrical panel. If it hasn’t, reset it and then see if the refrigerator begins working again.

• Examine the outlet: Check the power supply by plugging another gadget into the same outlet. If the outlet is bad, you may have to call an electrician.

2. Faulty Start Relay

The compressor needs the first power boost to start, which is provided by the start relay. If this component fails, the compressor won’t receive power and won’t start.

Fix:

• Find the start relay: The start relay is usually located at the rear of the refrigerator, attached to the side of the compressor.

• Test the relay: Make sure the start relay is continuous by using a multimeter. If the relay doesn’t show continuity, it’s likely faulty and needs to be replaced.

• Get a replacement relay that is compatible with the model of your LG refrigerator if you can verify that the start relay is broken. Anyone with basic knowledge of appliance maintenance can replace a start relay because it's a fairly easy task.

3. Overheating or Poor Ventilation

Refrigerators are designed to operate efficiently with adequate airflow. If the compressor or the refrigerator itself becomes too hot due to poor ventilation, it may stop working to avoid further damage.

Fix:

• Make sure there is enough space surrounding the refrigerator to allow for proper airflow. It should not be positioned too near cabinets or walls.

• Condenser coil cleaning is important because dirty coils can lead to overheating and the compressor not starting up. Unplug the refrigerator and clean the coils underneath or at the rear with a coil brush or vacuum.

• Check the fan: If the fan is not working or obstructed, it may not be cooling the compressor efficiently. Check for debris or blockages, and clean the fan if necessary. If the fan is faulty, consider replacing it.

4. Faulty Thermostat

The thermostat controls the refrigerator’s internal temperature and regulates when the compressor should turn on and off. The compressor might not be signaled to start if the thermostat is broken.

Fix:

• Check the settings on the thermostat: Verify that the thermostat is set to the proper temperature, which is normally between 37°F and 40°F for a refrigerator. It might stop the compressor from starting if it is set too high.

• Test the thermostat: Check for continuity in the thermostat with a multimeter. If there is no continuity, the thermostat needs to be replaced because it is broken.

• Reset the thermostat: Some refrigerators have a reset button for the thermostat. If yours has one, press it to reset the thermostat, which may resolve the issue.

5. Low Refrigerant Levels

The compressor in your refrigerator may have trouble starting up or may not work at all if there is a refrigerant leak. This is a more complicated matter that needs expert assistance.

Fix:

• Check for signs of a refrigerant leak: If the fridge is not cooling and the compressor is running intermittently, it could indicate a refrigerant leak. Unfortunately, a professional will be required to repair the leak and check the refrigerant levels.

• Call a technician: If you suspect a low refrigerant, it’s best to call a certified technician who can find the leak, fix it, and recharge the system.

To make sure your LG refrigerator runs effectively, you must take quick care of a non-functioning compressor. By troubleshooting common problems, you can often resolve the issue yourself. However, if the problem persists, seeking professional help can prevent further damage and restore your refrigerator's performance, keeping your food fresh and avoiding spoilage.

I'm an independent blogger dedicated to sharing practical tips and insights on home appliances. My goal is to help readers enhance the performance and longevity of their kitchen equipment.