Why is My Refrigerator Making a Buzzing or Humming Noise in San Antonio, TX?

Has your refrigerator begun humming its own tune? There can be a number of different problems that can cause a refrigerator to hum. Some of those problems may be an easy fix where other problems may need full repairs or even a complete replacement of your refrigerator. Southwest Appliance Repair of San Antonio will share the different reasons that could make your refrigerator hum far louder than it ever has before.

Buzzing Noises from the Compressor at the Back of the Refrigerator

If the humming sound is coming from the back of the refrigerator, this could be a sign that the compressor is going out or it could be a problem with the motor fan. If the compressor is broken then your refrigerator will begin to overheat and eventually it will die out. A dirty fan motor can also be a cause for the humming. You will want to check your fan to make sure that it isn’t dirty, frozen, or that some sort of an obstruction is in the way. Another cause of that unsettling humming sound coming from the back of the refrigerator is if the refrigerator door was left open for a long period of time. Ice can begin to build up around the evaporator coils if a door is left open too long, even if it was only slightly open. If the evaporator coils have indeed frozen up, turn your refrigerator off for 24 hours then turn it back on.

Humming Sounds from the Bottom of the Refrigerator

If the refrigerator has a sudden hum and the sounds are coming from the bottom of the refrigerator, you could have a problem with the balance. You want the refrigerator as level as possible to help keep the bearings and pressure levels stable and equal. Push your refrigerator from the front and sides to see if it shifts. If it does, you will need to gather some wedges to help level the refrigerator. Humming from the bottom of the refrigerator could also be due to dirty evaporator coils. They should be cleaned if they are dirty.

Loud Noises from the Inside of the Fridge

Does the humming sound seem louder when the refrigerator doors are open? Humming that is coming within your refrigerator can occur when the evaporation motor is broken. It is the evaporation motor’s job to remove the excess moisture. As the moisture builds ups, a humming noise will begin to manifest, due to the other components being flooded or clogged.


Some fixes may be as simple as cleaning evaporator coils or leveling your refrigerator. However, if is due to a malfunctioning part or a broken part of the refrigerator’s system, then you will either have to repair or replace the part. You may even want to replace your entire refrigerator, depending on the cost. Keep in mind, most repairs of a refrigerator are inexpensive compared to replacing an entire refrigerator. Southwest Appliance Repair of San Antonio can inspect your refrigerator and help you determine the cause of the humming. If it can be repaired, we have experienced technicians that can do the job. We can repair or replace the components of your refrigerator. Contact Southwest Appliance Repair of San Antonio today for all of your appliance repair needs.

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