If your freezer has started making unusual sounds, such as a persistent freezer humming noise, it can be a sign of various issues. Identifying and addressing these noises promptly can prevent further damage and ensure your appliance runs efficiently.

In this guide, we’ll explore different types of noises, what they might indicate, and how you can address them.

Common Freezer Humming Noises and Their Causes

A freezer humming noise can be quite concerning, especially if it’s persistent. Here are some common noises and what they could mean:

1. Buzzing Noise

This can often be traced to the condenser fan or compressor. If the fan is obstructed or the compressor is struggling, you may hear a buzzing sound. Ensure there are no obstructions and check if the compressor is running smoothly.

2. Clicking Noise

A clicking noise might indicate that the start relay is malfunctioning or the thermostat is faulty. If the noise is frequent, it’s essential to check these components. A faulty relay or thermostat can prevent the freezer from operating correctly.

3. Humming Noise

A constant humming sound can be normal, but if it becomes unusually loud, it may be due to the evaporator fan motor or the compressor. The evaporator fan circulates air through the freezer and if it’s failing, it can cause a noticeable humming noise.

4. Rattling Noise

This could be due to loose components or the fan blades hitting an obstruction. Check for any loose parts and make sure the fan blades are unobstructed.

What To Do When Your Freezer Is Making Loud Noises

To diagnose the cause of a freezer humming noise, follow these steps:

1. Inspect the Fan

Check if the evaporator fan is operating correctly. If it’s blocked or damaged, it might be the source of the noise.

2. Examine the Compressor

Listen to the compressor; if it’s making excessive noise, it might be failing. This is a critical component, and issues with it should be addressed immediately.

3. Check the Condenser Coils

Dirty or clogged condenser coils can cause the compressor to work harder, leading to unusual noises. Clean the coils regularly to prevent this issue.

4. Listen for Electrical Issues

If you hear electrical buzzing or clicking, it might indicate a problem with the start relay or capacitor. These components can be checked with a multimeter.

Need expert appliance repair assistance?

If you’ve tried diagnosing and fixing the freezer humming noise but the problem persists, it’s time to call a professional. Electrical components, such as the compressor and start relay, can be complex and require specialized tools and knowledge to repair.

For expert assistance with any freezer issues, including persistent humming noises, contact Sardis Appliance Repair. Our team of skilled technicians is ready to provide reliable and efficient repair services to get your freezer running smoothly again. View the full video blog here.