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5 Common Reasons Why Your Refrigerator Runs Loud

Refrigerators typically operate in near silence, making any loud sound that much more startling. Why is my refrigerator making noise? The blades on the evaporator or condenser fan may be obstructed or rubbing against something. Troubleshoot the most common reasons a refrigerator runs loud to quickly silence the sound.

Refrigerator Runs Loud?
Here’s How to Quiet the Noise

When your refrigerator runs loud it’s hard to answer its cry for help if you don’t know where the noise originates. Here’s how to pinpoint the source of the sound so the right repair can solve the problem. 

Broken or Obstructed Fan Blade

The evaporator and condenser fans are essential to creating cool air for the refrigerator. The condenser fan cools refrigerant as it flows through the condenser coils, while the evaporator fan does the same for the evaporator coils. If the blades on either of the fans are blocked or start to rub against something, you may hear a continual refrigerator rattling noise. You may also notice that your refrigerator is warmer inside, as the fans are unable to rotate and create cool air.

refrigerator-runs-loud
Photo Credit: PartsSelect

An experienced DIYer can inspect the fan blades to determine if they’re obstructed. The evaporator fan is usually behind a rear freezer panel, while the condenser fan can be accessed from the rear of the refrigerator. Though any visible blockages can be removed to stop the sound, either fan needs to be replaced if the blades are damaged.

Faulty Evaporator Fan Motor

A faulty evaporator fan motor is another common reason a refrigerator makes noise. Often, the noise gets louder when you open the refrigerator or freezer door. As with an obstructed fan blade, you may also find that your refrigerator feels warmer and struggles to maintain its temperature. If an inspection of the fan motor shows visible damage, or it exhibits no continuity with multimeter testing, it requires professional replacement.

Worn Out Condenser Fan Motor

Like the evaporator fan, the condenser fan will also make loud noise when it starts to wear out or fail. However, this noise typically sounds like a loud buzzing that remains loud whether the refrigerator doors are open or closed.

Wondering how to stop a refrigerator from buzzing? Inspect the condenser fan motor at the bottom of the refrigerator, near the back. Often, defective motor bearings are responsible for loud buzzing sounds and can be replaced to save the motor. However, if the bearings don’t appear damaged, the motor is likely worn out and should be replaced in its entirety.

Defective Water Inlet Valve

If your refrigerator runs loud when using the water dispenser or during ice production, the water inlet valve may be defective. This valve opens and closes electronically to allow water from your home’s water line to supply the ice and water dispenser.

Over time, the valve can fail or become clogged with mineral deposits that hamper its function. While limited ice or water production are signs of a defective water inlet valve, it may also make a loud grinding noise when ice or water is dispensed. A defective water inlet valve cannot be repaired and requires professional replacement.

Compressor Malfunction

The compressor is at the heart of almost all your refrigerator’s functions, moving refrigerant throughout its various systems. True to its name, the compressor puts pressure on the refrigerant’s gas and propels it through the condenser and evaporator coils. Throughout this process, the refrigerant heats and cools to create cool air for the refrigerator. 

With time, a compressor can wear out or malfunction, resulting in a loud humming or buzzing sound. While it can continue operating while making these sounds, failure can happen any time, ceasing all refrigerator function. So, how to quiet a noisy refrigerator compressor? Unfortunately, these loud noises typically indicate wear or malfunction that can’t be repaired. A loud compressor must be professionally replaced.

The technicians at Dependable Repair Services can solve the problem when your refrigerator runs loud. Schedule your professional refrigerator repair today!

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