All refrigerators make noise. However, if you hear an unfamiliar sound, there is cause for concern. Most of the noise-related issues of a refrigerator occur due to minor problems.
The user can quickly resolve these issues with proper investigation, or an appliance technician can promptly resolve these issues.
Noise that stops when the door opens primarily points to an issue with the refrigerator fans. The noise likely occurs due to a defective refrigerator evaporator fan motor when the noise persists. However, defects in other components can also cause noise.
Reasons Why My LG Refrigerator’s Noise Stops When I Open the Refrigerator Door?
Refrigerators make low sounds as part of their regular operation. However, if the noise gets louder, there is a cause for alarm.
Below are some reasons why your LG refrigerator’s noise stops when you open the refrigerator door:
#1. Evaporator Fan Motor
The evaporator fan motor, which is a part of the cooling system in the refrigerator, is located at the back of the fridge. It works by pulling air out through the evaporator coils.
This is to remove heat from the circulating air present inside the refrigerator. Also, they are responsible for distributing cooled air throughout the refrigerator.
However, if the air distributing cycle does not work correctly, there will be an increase in the refrigerator’s temperature.
This can cause the fridge to produce some noise.
Also, if there are dirt and debris on the evaporator fan, the refrigerator can make some noise.
Moreover, fan blade damage or blockage can make the refrigerator produce noise.
Unfortunately, the only way to confirm this is to disassemble the fridge and examine the evaporator fan.
#2. Condenser Fan Motor
The condenser fan motor works by transferring heat from the refrigerator outside. This prevents the compressor from overheating.
However, a defective condenser fan motor can be catastrophic. This is because the compressor can get extremely hot and cause the breakdown of the system.
This is the primary cause of a refrigerator making a loud noise.
#3. Defrost Timer
Thermal expansion occurs in your refrigerator. This is because the fridge is made to be a cool place.
Defrost timers help to regulate the refrigerator compressor motor and the evaporator motor.
These timers help to turn off the defrost system to defrost at regular intervals.
A Faulty defrost timer causes an excessive frost buildup on the evaporator coils, reducing the air circulation.
This can cause the refrigerator to make noise.
However, the noise goes away after the refrigerator has defrosted. However, detecting a faulty defrost timer can be difficult.
#4. Temperature
Fluctuations in temperature inside the refrigerator occur when the cooling system switches on and off.
Any change in temperature causes contraction and expansion of the plastic material of the fridge.
This can cause the refrigerator to make noise.
#5. Refrigerator Doors
The refrigerator produces noise if the doors do not align properly. Also, if the body of the refrigerator is touching the wall or a cabinet, it will produce noise.
Moreover, if the floor beneath the refrigerator is not leveled, there will be an imbalance, making the refrigerator noise.
LG Refrigerator Humming Noise Stops When Door Opens?
Sound diagnosis is often one of the commonly used methods to detect that a refrigerator has a problem. A loud humming noise often shows that there is an abnormality.
It is majorly caused by the presence of too many food items in front of the air vent. If the things are too close to the air vent, they will prevent proper air circulation.
Also, a failing compressor can make the humming noise so loud and distracting. This is easy to detect because you mainly hear the humming noise when the compressor is working.
Frequently, replacing the compressor rectifies this issue.
Finally, the compressor coils also dissipate heat. But when they are dusty or dirty, it takes extra effort to perform their function.
This eventually results in a loud humming sound.
How Do I Fix My LG Refrigerator Noise That Stops When I Open the Refrigerator Door?
With some investigations, you can quickly resolve noise-related problems. Then, depending on the situation, you might not require the presence of an appliance technician.
The first thing to check for when you hear an unfamiliar sound from your refrigerator is to look for the noise source.
Where the noise is coming from indicates an issue with a component present in that area.
If the noise is coming from the back of the refrigerator, this could indicate an issue with the defrost timer, the condenser fan, or the compressor.
Check the fridge for frost build-up, which is a significant sign of a failing defrost timer. You will need a professional appliance technician to correct this problem.
Also, check the condenser fan for the presence of dirt and debris. Check out also for wear and tear on any part of the fans.
Finally, unplug the LG refrigerator and clean or replace the condenser fan if damaged. If this does not solve the problem, you can try other tips.
Noise from the refrigerator compressor is a common complaint. To confirm if the compressor has a defect, unplug the compressor’s motor and then plug the refrigerator in.
If the noise continues, the compressor is defective. The appliance technician should confirm and replace the engine if necessary.
However, if the noise is coming from the inside of the refrigerator, most likely, the refrigerator evaporator fan is defective.
To confirm this, switch on the light in the fridge.
If the noise gets louder when this is done, the fan is faulty. Next, check if the blades do not move freely or show signs of wear and damage.
This shows that the fan or the component needs replacement.
Moreover, noise coming inside can also be because too many food items are in front of the air vent. This prevents proper circulation of cooled air throughout the refrigerator.
To correct this, shift some things away from the air vent to allow air circulation.
On the contrary, if you notice that the noise is coming from the bottom of your generator, the drain pan has been shifted from its original position.
This mostly happens when you recently change the position of your refrigerator from one place to another. Fortunately, fixing this is simple.
First, take the pan out and fix it back into its correct position.
But if the noise does not sound as if it is coming from the refrigerator, then there is an issue with the heating and cooling system.
Noise that comes from this system is difficult to detect and correct by an unprofessional. You will need a professional appliance technician to fix this.
Finally, some straightforward procedures can be the solution you have been looking for. For example, you can open and close the door to realign the door.
Your refrigerator produces sound if the doors do not align properly. Also, check if the refrigerator is not resting on the wall or the cabinet.
A slight shift can balance the fridge on the ground.
Conclusion
During normal operations, the refrigerator produces a low humming sound. However, a fridge making loud humming or rattling sounds is considered abnormal.
This does not mean you need a replacement; it is a symptom that can help you detect the problem. Most times, the noise gives a direction on where to start the investigation.
Although you can handle some of these problems by the user, the significant issues require an appliance technician.
