Why is Your Refrigerator Compressor Not Running? Fixed!

You know how frustrating it can be when your refrigerator compressor isn’t running. It’s like your fridge is on vacation while your food starts warming up. But don’t panic—there are simple things you can check to fix this problem.

The compressor is the part of your fridge that helps keep everything cool. If it’s not running, your fridge can’t do its job. Sometimes, it might be something small like a power issue or a setting that’s off. Other times, it might be a bigger problem that needs a bit more work.

In this article, we’ll go over common reasons why the compressor might not be running and easy fixes you can try. By the end, you’ll know how to get your fridge back to cooling like it should. Let’s dive in and get your fridge running smoothly again!

Common Causes of Refrigerator Compressor Not Running

Power Supply Issues

First, check if your refrigerator is getting power. Make sure it’s plugged in securely and that the outlet is working. You can test the outlet by plugging in another device. If the outlet is fine, check the refrigerator’s power cord for any damage. Sometimes, a tripped circuit breaker or a blown fuse could be the problem. Reset the breaker or replace the fuse if needed.

Faulty Start Relay

The start relay helps the compressor start running. If it’s faulty, the compressor may not start. Listen for a clicking sound when the refrigerator is trying to start. If you hear clicking but the compressor doesn’t run, the start relay could be the issue. You may need to replace it, which can be done with a new part from a hardware store or an appliance repair shop.

Defective Compressor

If the compressor itself is faulty, it won’t run properly. Compressors are complex parts, and diagnosing them usually requires professional help. A bad compressor might make unusual noises, or you might not hear any noise at all. If your compressor is not working, it’s often best to contact a technician to check and potentially replace the compressor.

Overheating

Refrigerator compressors can overheat if there’s poor ventilation around the appliance. Ensure that there is enough space around the fridge for air to circulate. Check that the vents are not blocked by dust or debris. Overheating can cause the compressor to shut off as a safety measure, so proper ventilation is crucial for its operation.

Faulty Thermostat

The thermostat controls the temperature inside your fridge and can affect the compressor. If it’s malfunctioning, the compressor might not get the signal to turn on. Check if the thermostat is set to the correct temperature. If it seems faulty or unresponsive, replacing the thermostat might fix the issue.

Refrigerant Problems

Low refrigerant levels can also cause the compressor to stop running. If the refrigerant is leaking, the compressor might not have enough pressure to work properly. This issue usually requires a professional to fix, as it involves handling refrigerant and locating leaks.

Clogged Condenser Coils

Dirty or clogged condenser coils can make the compressor overheat and stop working. These coils are usually located at the back or bottom of the refrigerator. Clean them regularly to ensure efficient operation. Use a vacuum or a coil brush to remove dust and debris from the coils.

Faulty Capacitor

The capacitor helps the compressor start and run. If it’s faulty, the compressor might not start at all. You might notice a hard-starting compressor or one that doesn’t start at all. Replacing the capacitor can often resolve these issues, but make sure to use the correct type for your refrigerator model.

Steps to Fix Your Refrigerator Compressor That is Not Running

Check the Power Supply

Start by ensuring that your refrigerator is properly connected to the power supply. Verify that the power cord is plugged in firmly and that the outlet is working. You can test the outlet by plugging in another device, like a lamp.

If the outlet is working, inspect the power cord for any visible damage. If everything looks fine but your fridge still isn’t running, check the circuit breaker. Reset it if it’s tripped or replace any blown fuses. This simple check can often solve power-related issues.

Inspect the Start Relay

The start relay is a small part that helps the refrigerator compressor start running. If the start relay is broken, the compressor won’t start. To check the start relay, first, unplug the refrigerator to make sure you stay safe. Next, find the start relay, which is usually located on the side of the compressor at the back or bottom of the refrigerator.

It might also be found under the control panel. Once you locate the relay, remove it carefully. You can shake it gently to see if you hear any rattling noises. If it rattles, that often means it’s faulty. You can also use a multimeter to test the relay for continuity, which means checking if it allows electrical current to pass through it.

If the relay fails the test, or if it rattles, you will need to replace it with a new one. Start relays are available at appliance parts stores or online. Make sure to buy the correct type for your refrigerator model. After replacing the relay, plug the refrigerator back in and see if the compressor starts running.

Examine the Compressor

If the compressor is not running and you’ve checked the power supply and start relay, the problem might be with the compressor itself. The compressor is a key part of the refrigerator that pumps refrigerant through the system. If it’s not working, you might hear strange noises or no noise at all.

Sometimes, the compressor may get very hot and stop working as a safety measure. If the compressor is not running, it’s best to contact a professional repair technician. Compressors are complicated parts, and fixing them usually requires special tools and knowledge. A technician can diagnose the problem more accurately and determine if the compressor needs to be repaired or replaced.

Trying to fix a compressor yourself can be risky and might cause more damage. A professional can handle the refrigerant and other technical aspects safely. If your refrigerator is still under warranty, this is also the time to contact the manufacturer or the place you bought it from for repair options.

Improve Ventilation

Good ventilation is important for your refrigerator to keep running properly. If there is not enough space around the refrigerator, it can overheat and cause the compressor to stop working. Make sure there is at least a few inches of space around the sides and top of the fridge. This allows air to flow freely and keeps the refrigerator cool.

Check that the vents on the back or bottom of the refrigerator are not blocked by dust or debris. Dust and dirt can build up and prevent proper air circulation. To clean the vents, unplug the refrigerator and use a vacuum cleaner or a coil brush to remove any dust.

Cleaning the vents and coils helps prevent overheating and keeps the refrigerator running efficiently. If the refrigerator is placed in a hot spot or in direct sunlight, consider moving it to a cooler location if possible. Proper ventilation is key to maintaining your refrigerator’s performance and preventing compressor issues.

Replace a Faulty Thermostat

The thermostat in your refrigerator controls the temperature and can affect how the compressor runs. If the thermostat is not working properly, it might not signal the compressor to start. To check the thermostat, first, make sure it is set to the right temperature. Usually, the thermostat is located inside the refrigerator or freezer compartment.

If the temperature setting seems correct but the compressor still doesn’t run, the thermostat might be broken. To test it, you can use a multimeter to check if it’s working. If you find that the thermostat is faulty, you will need to replace it. Find a new thermostat that matches your refrigerator model. Replacing the thermostat is usually straightforward.

Remove the old thermostat and install the new one following the manufacturer’s instructions. Once you have replaced the thermostat, plug the refrigerator back in and see if the compressor starts running. A new thermostat can help regulate the temperature and ensure that the compressor works correctly.

Address Refrigerant Issues

If your refrigerator’s compressor isn’t running, there might be a problem with the refrigerant. Refrigerant is the substance that cools the air inside your fridge. If there is a leak or the refrigerant level is low, the compressor may not work properly.

This issue is tricky because handling refrigerants requires special skills and equipment. It’s best to call a professional technician to deal with refrigerant issues. The technician can check for leaks, add refrigerant if needed, and fix any problems with the refrigerant system.

Attempting to handle refrigerants yourself can be dangerous and might damage your refrigerator further. A professional will have the right tools and knowledge to fix the problem safely and effectively. Make sure to describe the issue clearly to the technician so they can provide the best solution for your refrigerator.

Clean the Condenser Coils

The condenser coils are an important part of your refrigerator’s cooling system. If they get dirty or clogged, they can cause the compressor to overheat and stop working. To clean the coils, first, unplug the refrigerator to ensure safety. Locate the condenser coils, which are usually found at the back or underneath the appliance.

Use a vacuum cleaner or a coil brush to remove dust and debris from the coils. Be gentle to avoid damaging the coils. Cleaning the coils helps improve the refrigerator’s efficiency and prevents overheating. You should clean the condenser coils every few months to keep your refrigerator running smoothly.

Regular maintenance helps extend the life of your appliance and ensures it operates correctly. After cleaning the coils, plug the refrigerator back in and check if the compressor starts working.

I hope this guide helps you fix your refrigerator compressor. By checking the power supply, start relay, and other parts, you can often solve the problem. If you still have trouble, it’s best to call a professional. Regular maintenance can also keep your fridge running smoothly. Good luck with your repairs!

Are These Questions in Your Mind?

Is it safe to repair the compressor yourself?

Repairing the compressor yourself can be risky. Compressors are complex, and handling refrigerants requires special skills. It’s generally safer to hire a professional to ensure the repair is done correctly and safely.

Can a dirty filter cause the compressor not to run?

Yes, a dirty filter can affect the overall performance of your refrigerator, including the compressor. A clogged filter can block air flow and cause the compressor to overheat. Regularly cleaning or replacing the filter can help maintain proper function.

Do I need to replace the whole compressor if it’s not running?

Not necessarily. Sometimes, issues with the compressor can be fixed by replacing parts like the start relay or capacitor. If these fixes don’t work, replacing the entire compressor might be necessary. A technician can help determine the best solution.

Can low refrigerant cause the compressor to stop?

Yes, low refrigerant levels can cause the compressor to stop running. Refrigerant is essential for cooling, and if there is a leak or the level is too low, the compressor may not work correctly. A professional can check and refill refrigerant if needed.

Is it important to clean the condenser coils regularly?

Yes, cleaning the condenser coils regularly is important. Dirty coils can cause the compressor to overheat and affect the efficiency of your refrigerator. Keeping them clean helps prevent overheating and maintains proper cooling performance.

Do I need to reset the refrigerator after a power outage?

Yes, sometimes you may need to reset your refrigerator after a power outage. Check the settings and ensure everything is functioning properly. If the compressor isn’t running after the power is restored, there might be another issue that needs attention.

Can a faulty thermostat affect the compressor?

Yes, a faulty thermostat can prevent the compressor from running. The thermostat controls the temperature and signals the compressor to start or stop. If it’s not working properly, the compressor might not operate as needed.

Is it normal for the compressor to make noise?

Some noise from the compressor is normal, but unusual or loud noises can indicate a problem. If you hear grinding, rattling, or high-pitched sounds, it might be a sign of a malfunction. Contact a technician to check for issues.

Do I need to turn off the refrigerator before cleaning the coils?

Yes, it’s best to turn off the refrigerator before cleaning the coils. Unplugging the appliance ensures safety and allows you to clean the coils thoroughly without damaging any components. Once cleaned, plug the refrigerator back in and check its operation.

Can a broken door seal affect the compressor?

Yes, a broken door seal can affect the compressor by allowing warm air to enter the fridge. This extra heat makes the compressor work harder to maintain the correct temperature, which can cause it to overheat or fail. Repair or replace the door seal if it’s damaged.