Why Does My Refrigerator Always Hum and Run Constantly?
Have you noticed your refrigerator seems to always be running with a constant humming sound? This can be quite unsettling and might raise concerns about its efficiency and the need for repairs. In this article, we will explore the common causes and solutions for a refrigerator that seems to run non-stop, ensuring your fridge operates at its best.

Common Causes of a Constant Humming Sound and Running

Firstly, ensure that there are no intrinsic issues that could cause your refrigerator to run continuously and make a humming sound. These include:

Loss of Gas or Capacitor Failure: If your refrigerator seems to always be running, it could indicate an issue with its gas and the capacitor. It's important to check these components, as a faulty capacitor can result in the compressor running non-stop. Properly Closed Door: Ensure that your refrigerator's door is properly closed and the gasket is sealed correctly. An open or poorly sealed door can cause the refrigerator to work harder, leading to a constant humming sound.

Additionally, if you do not have a thermostat defect or other control failure, your compressor should not run constantly. In some models, the evaporator fan located in the freezer section runs periodically to supply air via a dampered duct to the refrigerator section, which might also contribute to the humming sound.

Compressor and Fan Cushion Failure

A compressor or fan cushion failure can also cause a constant humming sound. If you suspect this issue, it is best to contact customer service and have them address the problem. They will be able to diagnose and potentially repair the issue to restore your refrigerator to optimal performance.

Other Potential Causes and Solutions

It's essential to consider other possible causes and solutions if the above suggestions do not resolve your issue:

Thermostat Defect or Control Failure: In case you have a thermostat defect or other control failure, your refrigerator will not run constantly. However, the evaporator fan in the freezer section will still run intermittently to distribute cold air to the refrigerator section. Compressor Issues: Many refrigerators feature a compressor that can produce a humming sound when it turns on. This is normal but can also be quieter in some models. Before purchasing, consider going with a refrigerator that produces less noise, as some models are designed to operate more quietly. Fridge Positioning: If the refrigerator is located too close to the wall, it might be causing the compressor to run constantly. Ensure that the fridge has enough clearance around it to allow for proper airflow, which can help reduce the humming sound.

Lastly, some refrigerators have fans in the food compartment to distribute cold air more evenly. If your noise seems different from the compressor humming, it might be this internal fan running. These fans typically stop when the door is open, which can help keep the refrigerator smelling fresh and cooler.

Remember, a little humming sound from your refrigerator is often a normal part of the cooling process. However, if the noise is excessive or accompanied by other symptoms like difficulty cooling, it's best to consult a professional to ensure your appliance operates safely and efficiently.