Fridge Making Loud Humming Noise: 4 Steps to Fix It

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Gina Napsin
May 25, 2024
Home appliances
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Four Steps To Fix A Refrigerator Making Loud Humming Noise

Have you ever found yourself contemplating a peculiar symphony in your kitchen? It's not the sound of a new musical trend, but rather your refrigerator making a loud humming noise. Before you consider inviting it to audition for a band, let's tackle the issue head-on.
In this blog post, we will share four simple steps to silence that unruly chorus and restore peace to your culinary haven. So, if your refrigerator is making a loud humming noise that's driving you up the wall, keep reading!

Humming is Perfectly Normal

Before we delve into the troubleshooting steps, it's essential to understand that a certain level of humming noise is normal for refrigerators. Refrigeration systems rely on various components, such as compressors, fans, and motors, which can produce a low hum during operation. This hum is typically not bothersome and indicates that your fridge is functioning correctly.

Why Is My Fridge Humming So Loud?

A refrigerator making a loud humming noise can indicate an underlying issue that requires attention. Here are some potential reasons why your fridge might be humming louder than usual:
  • Mechanical Components: One possible reason is an issue with the mechanical components. The compressor, responsible for cooling the unit, may be working harder than usual, resulting in a louder hum. Similarly, the condenser fan or evaporator fan, responsible for circulating air, could be experiencing issues, causing the continuous sound.
  • Vibrations and Uneven Surface: Another factor contributing to the problem is vibrations. If your fridge or freezer is not properly leveled or certain components are loose, it creates vibrations that amplify the sound. Ensuring the appliance is placed on a level surface and tightening any loose parts can help reduce vibrations and sound.
  • Ice Buildup: Excessive ice buildup on the evaporator coils can lead to a loud sound in your freezer. When the fan blades hit the accumulated ice, it causes a sound. Regularly defrosting your freezer prevents ice buildup and alleviates the sound issue.
  • Faulty Motor: A faulty motor can also be a culprit behind a loud sound in your fridge or freezer. The motor may be struggling to function correctly, resulting in an abnormal sound. Seeking professional assistance is recommended to diagnose and resolve motor-related issues.
  • Electrical Problems: Electrical issues, such as faulty wiring or a failing capacitor, can contribute to a loud humming noise. These problems require the expertise of a trained technician to identify and fix the underlying electrical issues, ensuring the safe and efficient operation of the appliance.

What to Do If My Fridge Is Making a Humming Noise Too Loud?

Now that you understand the potential causes, let's move on to the steps you can take to address the issue of a fridge making a loud humming noise.

Detecting Where The Sound is Coming From

When your fridge is making a loud humming noise, it's important to determine where the sound is coming from to identify the underlying issue. By following these steps, you can effectively detect the source of the noise within your refrigerator:
  1. Listen attentively: Turn off any background noise and stand near your refrigerator. Listen carefully to the humming noise. Pay attention to its intensity and determine the general area it's coming from.
  2. Check the back: Move to the back of the refrigerator and listen closely. If the sound is more prominent in this area, it could be a sign of issues with the compressor, condenser fan, or motor. These components are usually located at the back of the fridge.
  3. Inspect the freezer: Open the freezer compartment and listen if the freezer is making a loud humming noise. If it becomes louder when the freezer is open, the issue might be related to the evaporator fan or the buildup of ice on the evaporator coils.
  4. Observe other areas: Pay attention to any other parts of the fridge, such as the interior, doors, or bottom grille. Sometimes, loose items inside the fridge, a faulty door seal, or a vibrating grille can cause unusual sounds.
By following these steps and pinpointing the specific area where the sound is coming from, you can better understand the potential problem. However, if you're unable to determine the source or if the sound persists, it's advisable to seek professional assistance from a qualified technician to diagnose and resolve the issue effectively.

What Can You Do About the Noises?

Once you have identified the source of the loud humming noise, it's time to take action. Here are a few things you can do:
Step 1: Level the refrigerator
When a refrigerator is not sitting level on the floor, it causes vibrations that result in a loud humming noise. To address this issue, use a leveling tool to check the refrigerator's balance. Place the tool on top of the refrigerator and observe if it indicates any tilt in any direction.
If the refrigerator is not level, you can adjust the feet to achieve proper balance. Turning the leveling feet clockwise or counterclockwise will raise or lower the height of the refrigerator, allowing you to level it. By ensuring that the refrigerator is sitting level, you can minimize vibrations and reduce the humming noise.
Step 2: Check for obstructions
To troubleshoot a fridge making a loud humming noise, it's crucial to check for any obstructions around the appliance. Carefully examine the area surrounding the fridge and ensure that there are no objects, cabinets, or walls in direct contact with it. These obstructions can cause vibrations and amplify the sound.
Additionally, make sure that the fridge has enough space for proper ventilation. Restricted airflow can strain the components and contribute to loud sounds. By removing any obstructions and allowing sufficient airflow, you can alleviate the sound and help it function optimally.
Step 3: Clean the condenser coils
Over time, the condenser coils can become clogged with dust and debris, hindering proper heat dissipation and causing the appliance to work harder. This increased strain leads to a louder humming noise. To fix this problem, it's important to clean the condenser coils on a regular basis.
Start by locating the coils at the back or underneath the refrigerator. Next, use a soft brush or a vacuum cleaner equipped with a brush attachment to clean away any accumulated dust or debris gently. By cleaning the coils, you improve the appliance's performance, enhance energy efficiency, and minimize the loud sound.
Step 4: Inspect and clean the fans
The fans inside your fridge and freezer compartments play an important role in maintaining proper airflow and temperature regulation. However, dust and debris can accumulate over time on the fan blades, impeding their efficiency and causing excessive sound.
To fix the issue, examine the fans thoroughly and use a soft brush or a vacuum cleaner with a brush attachment to eliminate any accumulated dust or debris. Cleaning the fans ensures optimal airflow, reduces strain on the fans, and helps minimize the excessive noise caused by hindered airflow.

Who Should I Call For Refrigerator Repair and Replacement?

Are you tired of the constant humming noise coming from your refrigerator? Take control of the situation and restore peace in your kitchen with Home Alliance, your go-to appliance services provider. Our highly skilled technicians specialize in fridge repair, catering to top brands like Viking, Sub-Zero, Thermador, GE Monogram, and more.
With their extensive expertise and attention to detail, they'll swiftly tackle the issue and bring back the tranquility you deserve. Plus, our services come at a reasonable price, ensuring your satisfaction in terms of quality and affordability. Book a service now, and let us restore harmony to your home!