Why And How To Fix Refrigerator Knocking Noise? Top Full Guide 2023

How To Fix Refrigerator Knocking Noise Top Full Guide 2023

If you have a refrigerator making a knocking noise, it can be a cause for concern. Not only is it an annoyance, but it could also indicate a more significant issue that needs to be addressed. Fortunately, fixing a knocking noise in your refrigerator may be easier.

In this post, we will discuss “why does my refrigerator make knocking noises” as well as How To Fix Refrigerator Knocking Noise and some simple steps you can take to troubleshoot and fix the problem. Some causes of refrigerator knocking noises can be simple issues like leveling or cleaning, while others may require more extensive repairs. 

So, if you are tired of hearing your refrigerator knocking sound all day and night, keep reading to learn how to diagnose and fix the problem.

Why Does My Refrigerator Make Knocking Noise: 5 Reasons

Why Does My Refrigerator Make Knocking Noise 5 Reasons

If you’re hearing a knocking noise coming from your refrigerator, there are several reasons why this could be happening.

Water Pipes

One common cause of the refrigerator making knocking noise is the water pipes that run through the appliance. If these pipes are not secured properly, they may vibrate against other fridge parts, causing a knocking sound.

Ice Maker Jam

Another reason why there is knocking sound from refrigerators is due to an ice maker jam. This can happen if ice cubes become stuck in the ice maker, causing the motor to strain and knock.

Ice Around Evaporator Fan

If your refrigerator is making knocking noise, it could be due to ice building up around the evaporator fan. This can happen if the defrost system is not working correctly, causing excess ice to accumulate in the freezer compartment.

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When the fan tries to circulate air, it can hit the ice and make a knocking noise.

Fridge Plastic Parts

Plastic parts inside the refrigerator, such as the door shelves, can also be a source of the fridge making knocking noise. This can happen if the plastic warps or cracks over time, causing it to rattle against other fridge parts.

You will need to replace any damaged plastic parts to fix this issue. You can purchase replacement parts from the manufacturer or a third-party supplier.

Worn-Out Compressor

If none of the above issues are causing your refrigerator to make a knocking noise, it could be due to a worn-out compressor.

The compressor is responsible for circulating refrigerant through the appliance, and if it is worn out, it may make a knocking sound as it struggles to function properly.

Unfortunately, fixing a worn-out compressor is not a DIY job; you must hire a professional to replace it.

How to Fix Refrigerator Knocking Noise

How to Fix Refrigerator Knocking Noise

A knocking noise from a refrigerator can be quite alarming and indicate something is wrong.

However, before you panic and call a repair technician, you can take a few steps to try and fix the problem yourself. Here are some tips on how to fix a knocking noise in a refrigerator.

Level the refrigerator

If your refrigerator is not level, it can cause a fridge knock sound as the compressor works to maintain the appropriate temperature.

To level and fix your brand new refrigerator makes knocking noise, use a spirit level to check its horizontal and vertical position. If the refrigerator is not level, adjust the leveling legs until it is.

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Check the compressor mounts

The compressor is responsible for circulating refrigerant to keep the refrigerator cool. If the compressor mounts are loose or damaged, it can be the refrigerator compressor knocking.

First, unplug the refrigerator and remove the access panel at the back to check the compressor mounts. Look for any visible signs of damage, such as cracks or missing bolts. If you find any damage, replace the compressor mounts with new ones.

Read more: How Do You Know If Your Refrigerator Compressor Is Bad: Full Guide 2023

Clean the condenser coils

The condenser coils are located at the back of the refrigerator and are responsible for dissipating heat. If they become dirty or clogged, they can cause the compressor to work harder and therefore the refrigerator makes knocking noise.

First, unplug the refrigerator and remove the access panel at the back to clean the condenser coils. Use a vacuum cleaner with a brush attachment to gently clean the coils, being careful not to damage them.

Replace the evaporator fan

The evaporator fan is responsible for circulating air through the refrigerator to maintain an even temperature. If the fan blades become damaged or the motor wears out, the fridge makes loud clunk noises.

First, unplug the refrigerator and remove the access panel at the back of the freezer compartment to replace the evaporator fan.

Disconnect the wiring harness and remove the fan assembly. Replace the old fan with a new one and reassemble the refrigerator.

Check the water inlet valve

If your refrigerator has a water dispenser or ice maker, it may be equipped with a water inlet valve. If this valve becomes clogged or damaged, it can cause a knocking noise as water flows through the system. First, unplug the refrigerator and turn off the water supply to check the water inlet valve.

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Remove the access panel at the back of the refrigerator and locate the water inlet valve. Inspect it for any signs of damage or debris. If you find any issues, replace the water inlet valve with a new one.

Call a Professional

If you have tried all of the above steps and the freezer knocking sound persists, it may be time to call in a professional. A qualified repair technician can diagnose the issue and make any necessary repairs to get your refrigerator running smoothly again.

Is Knocking Sound in Refrigerators Normal?

Is Knocking Sound in Refrigerators Normal

No, the refrigerator makes popping noises that are abnormal and could indicate a problem that must be addressed. While it’s common for refrigerators to make some noise, refrigerator makes jackhammer noises are typically a sign that something is wrong.

One possible cause of knocking sounds in a refrigerator is an issue with the compressor. The compressor is responsible for circulating refrigerant through the system and maintaining the temperature inside the refrigerator.

If the compressor is failing or not functioning properly, it can create knocking or rattling noises.

Another potential cause of knock on refrigerator is a problem with the condenser fan. The condenser fan is responsible for moving air over the condenser coils, which helps dissipate heat and keep the refrigerator cool. If the fan is damaged or not working correctly, it can create a knocking noise.

In some cases, knocking sounds may also be caused by loose components within the refrigerator. For example, if a screw or bolt comes loose, it could rattle around and create a knocking sound.

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If you’re hearing knocking sounds in your refrigerator, it’s important to have it inspected by a professional. A qualified technician can diagnose the issue and recommend the necessary repairs.

Ignoring the problem could lead to further damage and potentially even result in the need for a replacement refrigerator.

FAQs

FAQs Of How To Fix Refrigerator Knocking Noise

Why is whirlpool refrigerator noise knocking?

A Whirlpool refrigerator may make a knocking noise for several reasons, including loose water pipes, ice maker jam, ice buildup around the evaporator fan, damaged plastic parts, or a worn-out compressor.

Diagnosing the issue and fixing it promptly is important to avoid any further damage or costly repairs.

Is a clicking fridge dangerous?

A clicking noise from a fridge may not necessarily indicate a dangerous situation, but it is important to identify the cause.

It may be due to a faulty start relay, defrost timer, or compressor, which could lead to a malfunctioning fridge or even a complete breakdown. If you are unsure of the cause of the clicking noise, it is best to consult a professional.

Is a refrigerator making clicking noise after power outage?

A refrigerator may make clicking noises after a power outage due to the compressor trying to restart.

It is important to note that it may take a few minutes for the compressor to restart after a power outage, and during this time, clicking noises may be heard.

However, if the clicking noise persists, it may indicate a more serious issue with the fridge and should be investigated further.

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Conclusion

Suppose your fridge is making a knocking noise. In that case, it can be caused by several factors, including loose water pipes, an ice maker jam, ice buildup around the evaporator fan, damaged plastic parts, or a worn-out compressor.

Diagnosing the issue and fixing it promptly is important to avoid further damage or costly repairs. While some issues can be resolved with simple DIY fixes, others may require professional assistance.

If you’re unsure of the cause of the knocking noise or don’t feel confident repairing the issue yourself, it’s always best to consult a professional. In the meantime, visit Publicananker for more informative articles on home appliances and repairs.

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