Four Steps To Fix A Refrigerator Making Loud Noise

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Gina Napsin
May 25, 2023
Home appliances
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It might not be random when an appliance starts generating strange noises. Although that may frighten you, wait to call the service hotline before you lose your cool. In particular with refrigerators. Most manufacturers explain in the user guide for the fridge noises are entirely normal and are brought on by the temperature difference between the cold interior and the warm or even hot exterior environment.

The refrigeration system in refrigerators and freezers uses a compressor to deliver cooling (some appliances also include a fan), which makes some noise. The appliance's installation, correct use, and age all affect the noise level. The noise (or coolant flow) may get louder for a few hours after the unit has started. This does not indicate a problem with the appliance and has no impact on its lifespan.

When the door is opened more frequently, or for more extended periods, when more food is stored, and when the intense freezing or chilling function is used, the cooling system is put under a higher burden, momentarily increasing the noise level of the refrigerator.

Humming is perfectly normal

A refrigerator making a loud humming sound is normal. Keep in mind that all freezers create noise in some capacity. They usually have a buzzing sound, and their distinctive sound is humming. The other sound is gurgling, brought on by a cooling gas boiling in the refrigerator's evaporator.

Other strange noises might signal trouble, especially if other problems are present. If you find that the ice maker needs to be fixed or the food needs to be adequately chilled, take a closer look. Before hiring a repair company, you may diagnose and handle the noisy refrigerator yourself.

What noises need attention, then?

Detecting Where The Noise is Coming From

Finding the general location of the noise's source is the first step in repairing a loud refrigerator. This could be more challenging for certain noises than others. Generally, you may get a good notion by observing where the noise is loudest. Other sounds, such as a louder-than-usual refrigerator buzzing, may be coming from elsewhere, but that sound alone provides a decent hint. Note the type of noise made and if it comes from the interior, the rear, or the bottom. Additionally, you can listen for sounds in the freezer and fresh food sections to see where it is loudest. Even if specific access panels are only in one place, you will at least be aware of how far you need to delve.

What do these possible noises and their locations suggest, then?

  • Drain Pan

It's probably the drain pan if you hear a definite rattling from your refrigerator's bottom. If you had to move your refrigerator or came into contact with the drain pan in any other way, this is a typical occurrence. It was most likely removed from the proper location. This implies that the ordinarily secure pan vibrates somewhat while a refrigerator is regularly operating. Fortunately, the solution is straightforward. The pan merely has to be removed and put in the proper location.

  • Condenser Fan

A fan probably cools your refrigerator's condenser coil if it is a more recent frost-free type. This fan keeps air circulating for two purposes: to appropriately cool the condenser coil and to dry off any water that collects on the drain pan when things defrost. A problem with the condenser fan motor may be causing your refrigerator to cycle on and off too frequently, run too warmly, or run too loudly since it switches on simultaneously with the evaporator and compressor motors. Typically, the condenser fan motor is located conveniently adjacent to the compressor on the bottom of the refrigerator, toward the rear.

Start your check by disconnecting the refrigerator and removing the back access panel. Remove any obstructions that would prevent the fan's blades from moving freely. Regularly vacuuming the space is a healthy practice. Additionally, look for evidence of wear on the motor, edges, or a seized motor that requires replacement. Replace any old or broken rubber mounting grommets or blades with new ones.

  • Evaporator Fan

Suppose the noise coming from your refrigerator is coming from the freezer. In that case, you may have an issue with your evaporator fan motor, which is located behind the back wall of the freezer section and ventilates the evaporator coils when the compressor is running. The refrigerator could be warmer than usual, and ice formation might take longer if this component is the noise source. Remove the evaporator fan cover and cut off the electricity to the refrigerator. Is ice or frost blocking the fan? That implies that the defrosting process is problematic. Are the fan blades damaged, or are they lost? Any fan that is worn out or damaged has to be replaced.

  • Water Line Valve

A clicking sound from your ice maker is a frequent sign that the water line valve is loose or not correctly connected to the water supply. For example, the ice maker may not be functioning due to a damaged connection or a newly relocated refrigerator.

What can you do about the noises?

Step 1: Check and secure the drain pan.

This is the most frequent and straightforward repair when your refrigerator produces unusual noises from the bottom. The fridge will make loud noises if the drain pan is unfastened. All you have to do to fix it is put the current hardware back in place and secure the pan.

Step 2: Listen for a faulty defrost timer.

The defrost timer could be broken if the weird sound you hear comprises ticking or scraping. The freezer and refrigerator compartments should also be examined for any frost accumulation since this might indicate a broken timer.

Listen intently after that. If the defrost timer needs to be updated if the refrigerator is noisy once or twice a day for around an hour, you should ask for help from a refrigerator repair expert.

Step 3: Clean and inspect the condenser fan.

Condenser fans are no longer standard in refrigerators, but if yours do, they are hidden behind an access panel on the back of the appliance. You must disconnect your refrigerator from its power source before checking the condenser fan, including the rubber grommets, for any damage.

Use a soft brush to remove any dirt or debris blocking the condenser motor fan while you are back there.

Step 4: Check the evaporator fan.

Pushing the light switch in the freezer is a simple approach to see if the evaporator fan is making loud noises. If the fan is the source of the noise, it will get louder. If so, you ought to examine the fan to determine the degree of harm.

The refrigerator's evaporator fan is situated at the back of the freezer compartment. With screws or clips in place, it may be accessible behind a panel. Before you start any repair, make sure your refrigerator is disconnected.

Spin the fan blade with your hand after removing it from the power source to check that it is functioning correctly. Additionally, look for any evidence of damage or wear and tear on the wires, grommets, and other parts. It could be necessary to replace the fan and related components if the fan blade cannot rotate freely or if there are other indications of damage or deterioration.

Why Is My Fridge Humming So Loud?

There is nothing abnormal about the noises your refrigerator is making. But if it is still producing its typical hum but is considerably louder than you recall, like when your fridge is humming loudly that you can hear it in another room. This loud buzzing usually indicates one thing when it happens. A filthy compressor is frequently the source of the loud buzzing. Your refrigerator's compressor coils in the rear disperse heat, but when they are caked with dust, they have to work harder and make a louder noise as they do so.

Giving your compressor coils a thorough cleaning will frequently rapidly resolve this problem. If you did clear them off, though, and the loud buzzing persists, your compressor could be having issues. You cannot repair or replace this on your own. Your refrigerator's compressor system is intricate and risky if tampered with. You should contact a qualified technician; however, replacing a compressor may be pricey, depending on the problem. It would be wise to think about replacement, depending on how old your refrigerator is.

Who Should I Call For Refrigerator Repair and Replacement?

It's best to contact Home Alliance to quickly identify the source of the issue because various problems can make your fridge run continuously. Doing it yourself takes time, and it might cost you even more money (and time) in the long run.

Our trained technician can immediately diagnose the issue after a comprehensive refrigerator inspection. Additionally, they are equipped with the knowledge and skills required to perform effective appliance repairs. A specialist can assist with all your inquiries and provide the knowledge you need to decide whether to repair a damaged component or, in the worst cases, replace the refrigerator entirely. We service various appliance brands such as Viking, Sub-Zero, Thermador, GE Monogram, and more. So what are you waiting for? Book a service with us today!