Refrigerator Compressor Frozen: 4 Easy Steps to Fix It

Is your refrigerator compressor frozen? This guide offers you an in-depth, step-by-step approach to diagnose, understand, and rectify the issue effectively.

Refrigerator Compressor Frozen
Image Source: Wikimedia Commons

Refrigerator Compressor Frozen Signs

You don’t have to be a technician to notice signs of a frozen compressor. Here are some common indicators:

Loud Noises: Unusual or loud humming and buzzing sounds emanating from the back of your fridge are often a tell-tale sign.

Improper Cooling: If your fridge or freezer isn’t keeping food as cold as usual, the compressor may be struggling.

Frost Build-Up: A frozen compressor can lead to uneven cooling, causing excessive frost in the freezer.

What Causes a Compressor to Freeze?

Understanding the cause is the first step in fixing the problem. Here are some common culprits:

Incorrect Thermostat Settings: Setting the temperature too low can overload the compressor.

Poor Ventilation: A fridge needs space for air to circulate around it; lack of this can cause overheating and eventual freezing.

Clogged Coils: Dust and debris can accumulate on the coils, reducing efficiency and leading to freezing.

Faulty Fan: If the fan designed to cool the compressor is broken, the compressor may freeze.

Refrigerator Compressor Frozen Diagnosis

Correct diagnosis is crucial before proceeding with any kind of repair. To help you confirm that the issue lies with a frozen compressor, follow this in-depth guide:

Power Down: First and foremost, unplug your fridge to avoid any electrical hazards. Electrical components can be dangerous when mishandled, so it’s crucial to remove any risk before proceeding.

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Location: The compressor is usually located at the back of the fridge. Move the fridge carefully away from the wall to access this area. You might need help if your fridge is large or heavy. Also, be cautious not to damage your flooring during this process.

Panel Removal: The back panel is typically held in place by screws. You’ll need a screwdriver to remove these screws. Keep them in a safe place, as you’ll need them to reattach the panel. Once the screws are out, carefully remove the panel to expose the compressor.

Physical Check: The compressor is generally a large, cylindrical, or box-like metal object. Carefully touch it. If it feels overly cold or you see ice or frost, these are signs it’s frozen. In a normal functioning fridge, the compressor should feel warm (but not hot) due to its role in heating the refrigerant gas.

Steps to Fix a Frozen Compressor

After successfully diagnosing a frozen compressor, you’ll need to address the issue. Here’s a thorough guide on what to do:

Thawing

The first step in repairing a frozen compressor is to let it thaw. Unplug the fridge and let it sit for several hours.

While you may be tempted to speed up the process using external heat sources like a hair dryer, don’t. This could damage sensitive parts. Natural thawing is the safest method.

Clean the Coils

Dirty coils can hamper efficient heat exchange, exacerbating the freezing problem. The coils are usually accessible from the back or the bottom of the fridge.

Use a vacuum cleaner with a brush attachment or a separate brush to clean off accumulated dirt and dust. This will help improve airflow and cooling efficiency.

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You can use this Vanitek Dryer Vent Cleaner Lint Brush from Amazon to clean your refrigerator’s coils.

Fan Check

Your fridge has a fan that cools the compressor. If this fan is faulty, your compressor may not cool down as it should, leading to freezing. Check the fan blades for any obstructions or damage. If it’s not working correctly, this part may need to be replaced.

Replacement fans can be purchased from specialized appliance stores or online, but if you’re not comfortable replacing it yourself, it may be time to call a technician.

Power Up

Once you’ve allowed time for thawing and performed the above maintenance steps, it’s time to power up your fridge. Plug it back in and set the thermostat to a moderate temperature—usually, the midpoint setting is a good place to start. Observe the fridge for several hours to see if normal cooling resumes.

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When to Seek Professional Help

If you’ve tried all the steps listed above and the issue persists, it’s time to consult a professional. Using a fridge with a frozen compressor can exacerbate the problem and lead to more costly repairs or even replacement of the appliance.