9 Signs Your Refrigerator's Compressor Is Failing

Your refrigerator is one of the most important appliances in your kitchen, keeping food from spoiling and safe to eat. The main component that keeps your refrigerator running smoothly is the compressor. Like any mechanical part, the compressor can break down and experience wear and tear over time.

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Recognizing the signs of a failing compressor can help you prevent breakdowns and avoid a more expensive appliance repair bill.

What Does a Refrigerator Compressor Do?

The compressor in your refrigerator acts as a pump. It compresses the refrigerant gas, which raises the pressure and the temperature and turns it into a liquid. The liquid circulates through the system and removes heat. When the compressor starts having problems, it becomes harder for the appliance to maintain the correct temperature and you may find yourself shopping for a refrigerator compressor replacement.

Signs Your Refrigerator’s Compressor Is Failing

The following are nine signs your refrigerator compressor could be failing.

1. Refrigerator Isn’t Cooling Properly

Your refrigerator is designed to maintain a consistent temperature, which you can adjust depending on your personal preference. If the interior temperature isn’t as cold as it should be or if it fluctuates, try cleaning the condenser coils. If this doesn’t resolve the issue, it might be time to replace the compressor.

2. Strange Noises

Some refrigerator noises are normal, such as a mild hum, short popping and cracking and sizzling sounds as water drips inside the ice maker. Loud or persistent clicking or knocking could indicate the compressor isn’t working properly. If you notice any unusual or consistent noises, contact a technician. Putting it off can lead to further and more expensive compressor issues.

3. Frequent Cycling

The type of compressor your refrigerator has affects how often it cycles on and off. If you notice your fridge cycling every few minutes, it could be a sign the compressor is struggling. Not only is this a strain on the compressor, it can also cause other components to wear out faster.

4. Increase in Your Energy Bill

A failing compressor works harder and uses more energy to keep the interior of your fridge cold. If you notice a sudden spike in your electric bill without any other explanation and fridge contents aren't as cold, it might be time for refrigerator repairs.

5. Overheating

The back of your fridge has a radiator that feels warm as it releases heat from inside. If you notice excessive heat coming from the back, it could be a sign of overheating or working too hard to maintain the interior temperature. If you ignore the issue too long, it can lead to compressor failure.

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6. Spoiling Food

Perishable food, such as meat, cheese and produce, can spoil if not kept cool. A faulty compressor fails to keep the refrigerator cold, causing food spoilage, potential health risks and food waste.

7. Tripping Circuits

Tripping circuit breakers are a warning sign of an electrical issue in your home. A bad compressor starting can draw too much power and overload the circuit, causing the breaker to trip. This can be a warning sign you need to contact an appliance tech immediately.

8. Compressor Isn’t Running

When your refrigerator compressor is running, you should be able to hear a faint humming sound. The back of the refrigerator is also warm to the touch. If the compressor doesn't turn on, it could be a sign of a faulty relay capacitor or a problem with the compressor itself. A professional refrigerator repairman can diagnose and recommend repairs or replacement.

9. Ice or Frost Buildup

Another warning sign your refrigerator compressor is bad is ice buildup in the freezer. While a small amount is normal, excessive ice could indicate inconsistent temperatures. You may also notice vegetables in your crisper drawer have ice on them. Try defrosting the refrigerator and check to see if the problem continues.

Addressing Refrigerator Compressor Replacement Issues

A failing refrigerator compressor can cause many problems, from higher electric bills to spoiled food. Act quickly to reduce the amount of damage. Prevent some compressor problems by cleaning the condenser coils regularly with a soft-bristled brush. The coils are located on the bottom or back of the appliance. Never ignore refrigerator issues because they'll only continue to get worse.