The situation when LG refrigerator creakscan unsettle any owner of modern household appliances. It is expected that the unit with the No Frost system will operate almost silently, providing only a barely noticeable hum of the operating compressor. However, the appearance of sharp, high-frequency sounds or an obsessive creaking often indicates mechanical friction, which will not disappear on its own.
Unlike the gurgling of the refrigerant, which is the norm for the circulation of freon in the evaporator tubes, creaking this is always the result friction of solid parts against each other. The source can be either itself compressor, or the ventilation system, or even incorrectly installed shelves. Ignoring this signal can lead to accelerated wear of expensive components.
In this article we will analyze in detail the main reasons for the occurrence of extraneous sounds in refrigerators of the South Korean brand. You will learn how to carry out initial diagnostics without calling a technician and in which cases immediate intervention by specialists is required.
Natural sounds against malfunction
Before sounding the alarm, you must clearly distinguish between normal operating noises and signs of breakdown. Modern models LG DoorCooling+ or LG InstaView equipped with inverter compressors that work differently than their old linear counterparts. They may make quiet clicks when changing power or a slight hiss.
However, if you hear a rhythmic squeak that intensifies when the engine starts or stops, this is a warning sign. Users often confuse case vibration with a mechanical defect. Light rattling may occur if the refrigerator is not level, but it indicates dry friction. creaking indicates dry friction.
Pay attention to the periodicity of the sound. If the noise appears only in the first minutes after defrosting or loading food, it may be due to thermal expansion of the plastic parts of the chamber. But a constant sound requires attention.
⚠️ Attention: If a burning smell is added to the squeak or the buzzing becomes intermittent and very loud, immediately unplug the device to avoid a short circuit.
Problems with installation and vibration of the case
The most common, but common reason is incorrect installation. The refrigerator LG must stand strictly horizontally. If the legs are unevenly unscrewed, the case warps, which creates tension in the metal walls and causes creaking during vibration.
Check the distance to the walls. For normal air circulation and absence of resonance, it is necessary to observe the gaps specified in the instructions. Sticking of the back wall to the furniture can transform normal vibration into a loud grinding sound.
It is also worth inspecting the interior space. Glass shelves can rattle and squeak if they do not sit tightly in the grooves, or metal dishes left on the door. Sometimes it is enough to simply adjust the bottles.
- 🔍 Check the installation level using a construction bubble level.
- 🔧 Adjust the height of the front support legs by twisting or unscrewing them.
- 🚚 Make sure that the transport bolts (if the compressor has them) are completely removed.
☑️ Installation diagnostics
No Frost system fan malfunctions
In refrigerators with a system No Frost fans are responsible for circulating cold air. There may be two of them: one in the freezer compartment, the other in the refrigerator compartment (in models with a double cooling circuit). They are the ones that most often become the source of a piercing squeak.
Over time, the fan bearings wear out and they lose lubrication. As a result, the axis begins to rotate with difficulty, emitting a characteristic metallic squeal. Another reason is ice freezing on the blades. If the defrost system does not work correctly, ice chips get into the mechanism, causing friction.
To diagnose this unit, partial disassembly of the rear panel in the freezer is often required. If the sound changes or disappears when you open the door, this is almost guaranteed to indicate the fan, since in many models LG when the door is opened, it stops.
How to check the fan without disassembling?
Carefully open the freezer compartment and listen. If when the door is opened (when the fan should stop according to the sensor), the creaking stops, the problem is in the blower motor.
Wear and problems of the compressor
The heart of the refrigerator is compressor. Models LG often use linear inverter compressors, which are considered reliable, but they do not last forever. A creaking sound in the motor area may indicate wear on the internal valves or bearings of the electric motor.
If it is the compressor that creaks, the sound is usually low-frequency, humming, turning into a grinding sound. This occurs when the rubbing parts inside the sealed casing are left without oil or become deformed. Unfortunately, repairing the compressor itself is often unprofitable; it needs to be replaced.
It is important to note that sometimes it is not the motor itself that creaks, but the tubes that go to it. When starting up, the compressor vibrates and if the copper tube touches the metal housing or other tube, a loud clanging or squeaking sound occurs. This can be easily fixed by carefully bending the tube by hand (with the device turned off!).
| Sound type | Probable cause | Difficulty of repair |
|---|---|---|
| Rhythmic squeak | Bearing fan | Low |
| Loud grinding noise at start | Compressor or start relay | High |
| Metal clanging | Touching pipes or parts | Average |
| Quiet hum with a crackling noise | Refrigerant circulation (Normal) | Not required |
Foreign objects and ice in the evaporator
Sometimes the noise is caused by trivial objects that have fallen behind the back wall or onto the condenser grill at the back of the refrigerator. Bags, foil or labels can vibrate from the air flow, creating a sound similar to a squeak.
A more serious problem is the formation of a “fur coat” or ice build-up on the evaporator. If the defrost system the drainage hole is clogged or clogged, the water does not leave, freezes and turns into an ice lump. The fan begins to touch this ice with its blades, producing a terrible cracking and squeaking sound.
In such cases, completely defrosting the refrigerator often helps. It is necessary to turn off the device from the network, open the doors and leave it for at least 24 hours. This will allow the ice to melt and free the rotating parts.
⚠️ Attention: Never try to pick out the ice with a knife or sharp objects! You can damage the evaporator tubes, which will lead to a freon leak and expensive repairs.
When you need to call a specialist
There are a number of situations when independent repairs are not only useless, but also dangerous. If you have checked the ventilation, made sure there is no ice and the installation is correct, but LG refrigerator continues to creak, the problem is probably deeper.
You need to call a specialist if:
- 🛠 The creaking is accompanied by a lack of cold in chambers.
- 🔥 The compressor heats up to critical temperatures (impossible to touch).
- ⚡ You smell melted insulation or see sparking.
Professional diagnostics will allow you to accurately determine whether you need to change the fan, repair the defrost system or replace the compressor. Use of original spare parts LG guarantees long service after repair.
Noise prevention and equipment care
In order for your refrigerator to operate quietly for many years, it is important to follow simple operating rules. Regular defrosting (even for a No Frost system) at least once a year helps prevent excess ice from forming in hard-to-reach places.
Keep the rear condenser grill clean. Dust and pet hair, packing between the coils, impair heat transfer. The compressor begins to work harder and longer, which increases the load on its components and can cause noise.
Do not place the refrigerator close to the wall and do not overload the shelves. Even distribution of food reduces cabinet vibration. Remember that proper operation is the key to silence in your kitchen.
Why did the creaking appear only after defrosting?
After defrosting, plastic parts may slightly change geometry due to temperature differences, which temporarily creates friction. It is also possible that residual water got into the fan bearing and froze. Let the refrigerator run for several hours - the sound may disappear.
Is it possible to lubricate the fan yourself?
Theoretically, it is possible if you remove it and get to the bearing. However, special lubricants for low temperatures are difficult to obtain. Regular oil will thicken in the cold, and the squeak will return within a week. It is easier and more reliable to replace the fan assembly.
Does the new refrigerator squeak during break-in?
The new unit can make various sounds in the first 2-3 days of operation. This grinds the compressor parts and expands the plastic. If the creaking does not go away after a week, this is a reason to contact a service center under warranty.
Does the temperature in the room affect the noise?
Yes, in a hot room the compressor works with more load and turns on more often. This may increase vibration and associated sounds. Ensure adequate ventilation around the unit to mitigate this.