Fridge Compressor Not Turning Off: Causes & Solutions

Is your fridge compressor not turning off? Don’t fret, you’re not alone. Many people face this issue and we’re here to shed some light on it. This article provides a comprehensive guide on what might be causing this and how you can troubleshoot it. Buckle up for an informative ride!

Fridge Compressor Not Turning Off
Image Source: Wikimedia Commons

Understanding your Refrigerator’s Compressor

A compressor is the heart of your refrigerator. It works behind the scenes, pumping refrigerant through the system. Think of it like a human heart but for your fridge.

Role of the Compressor in a Refrigerator

The fridge compressor plays a vital role in keeping your food fresh. It compresses the refrigerant, causing it to heat up and change from a low-pressure gas to a high-pressure gas. It’s the engine behind the cooling system. Cool, right?

Normal Compressor Operations

Ever noticed a humming sound coming from your fridge? That’s your compressor hard at work! It typically runs for a few minutes to a couple of hours, depending on your refrigerator model and its contents. However, it should turn off and allow the fridge to maintain its cool temperature.

What It Means When the Compressor Doesn’t Turn Off

If your compressor doesn’t turn off, it’s like a car engine running non-stop. This could lead to issues such as increased energy consumption and potential damage to the compressor. It’s essential to identify the root cause and fix it promptly.

Common Causes of a Refrigerator Compressor Not Turning Off

Your compressor might be pulling an all-nighter due to various reasons. Let’s look at some of the common ones.

Thermostat Issues

A misbehaving thermostat could be the culprit. It’s like a faulty thermometer that can’t tell if it’s hot or cold.

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Defective Thermostat

If your thermostat is defective, it might not signal the compressor to turn off. It’s stuck in a loop, thinking the fridge is not cold enough.

Incorrectly Set Thermostat

Alternatively, if your thermostat is set too low, your fridge might be working overtime to reach the desired temperature.

Dirty Coils

Dirty coils can make your compressor sweat more than necessary. It’s like running in a woolly jumper on a sunny day.

Impacts of Dirty Coils on Compressor Functionality

When the coils are dirty, the compressor struggles to release heat, causing it to overwork. The more the compressor works, the dirtier the coils become. It’s a vicious cycle!

How to Identify Dirty Coils

If your fridge feels warmer than usual or your energy bill is skyrocketing, dirty coils might be to blame. They are usually located at the back or under the fridge.

Faulty Compressor Relay

A faulty compressor relay is like a broken traffic signal that’s stuck on green. It keeps telling the compressor to go, go, go!

Signs of a Bad Relay

A clicking noise from the back of your fridge or the fridge not cooling properly can indicate a faulty relay.

Replacing the Compressor Relay

While a professional can easily replace a relay, some DIY enthusiasts might enjoy the challenge. Just remember to unplug the fridge first!

Damaged Seals

Damaged seals can let the cold air escape from your fridge, causing the compressor to work overtime.

How Seal Damage Affects the Compressor

Imagine leaving the door open on a cold day. The heat keeps running to keep up. That’s what happens to your compressor when the seals are damaged.

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Checking for Damaged Seals

You can check your fridge seals by closing the door on a piece of paper. If the paper slides out easily, your seals might need replacing.

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The Impact of a Continuously Running Compressor

A non-stop compressor is not just a nuisance; it can impact your wallet and your fridge’s lifespan.

Energy Consumption Concerns

A running compressor uses more electricity. It’s like leaving the lights on all day and night. Say hello to hefty electricity bills!

Increased Wear and Tear

Just like any machine, a compressor that’s always running can wear out faster. This can lead to more severe problems down the line.

Potential for Overheating and Other Damage

Overheating can cause damage to other components and, in severe cases, lead to a fridge breakdown. You wouldn’t want your fridge to throw in the towel, would you?

How to Fix a Refrigerator Compressor That Doesn’t Turn Off

Now that we’ve explored the causes, let’s talk about solutions. Roll up your sleeves, folks

Thermostat Adjustment or Replacement

Try adjusting the thermostat to a higher setting. If that doesn’t work, you might need to replace it. It’s like resetting your watch when it’s running fast.

Cleaning the Coils

Cleaning your coils can do wonders for your compressor. You can use a coil brush or a vacuum to clean them. It’s like giving your fridge a much-needed spa day!

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Relay Replacement

If the relay is the issue, replacing it could solve your problem. It’s like replacing a faulty light switch.

Seal Repair or Replacement

Inspect your fridge’s seals and, if necessary, replace them. It’s like replacing the seals on your windows to keep the cold air out.

When to Call a Professional

Some tasks, like replacing a compressor relay, can be a little daunting. If you’re not comfortable with DIY repairs, it’s time to call in a pro. After all, you don’t want to add to your problems, right?

Preventive Measures to Avoid Compressor Issues

Prevention is better than cure. Let’s look at some ways to keep your compressor happy and healthy.

Regular Cleaning and Maintenance

Regular cleaning of coils and checking the seals can go a long way in keeping your fridge running smoothly. It’s like taking your car for regular service.

Proper Usage and Care

Avoid overstuffing your fridge, and try not to leave the door open for too long. It’s like not overloading a washing machine or leaving the oven door open.

Periodic Professional Inspection

Having a professional inspect your fridge periodically can help detect issues early. It’s like going for regular check-ups with your doctor.