Owners of modern household appliances are often faced with a situation where a Samsung refrigerator makes extraneous sounds, in particular, characteristic clicks. For many users, this becomes a cause for serious concern, since we are accustomed to thinking that high-quality equipment should work almost silently. However, a clicking sound does not always indicate a breakdown or the need for urgent repairs. In some cases, this is a normal physical process associated with the expansion of materials or switching operating modes.
Understanding the nature of sound can save significant money on calling a technician if the problem lies in the design features of the model. Clicks may occur in different parts of the unit: in the compressor area, inside the chamber or behind the housing. It is important to correctly identify the source and nature of the sound in order to distinguish normal operation from a critical malfunction. In this article, we will analyze in detail all possible causes and methods for eliminating them.
Normal causes of clicks during No Frost operation
Samsung refrigerators equipped with the system No Frosthave a complex internal architecture, which inevitably gives rise to certain sound effects. One of the most common sources of clicks is thermal expansion of plastic. The internal walls of the chamber and air duct channels are made of polymer materials, which contract or expand with a sharp change in temperature. This process is accompanied by friction and a characteristic cracking sound reminiscent of clicks.
Also in models with automatic defrosting it regularly works defrost timer. At a given period of time, the system switches the valves and turns on the heating element to remove ice from the evaporator. The moment of switching is often accompanied by a loud click, after which the sound of dripping water can be heard. This is an absolutely normal situation that does not require user intervention.
Another reason may be vibrations transmitted to the plastic fastening elements of shelves or trays. If the shelf is not installed tightly, the micro-vibration of the compressor causes the plastic to come into contact with the housing, creating a clicking sound. Check the tightness of all removable elements inside the chambers.
Diagnostics of problems with the compressor and start relay
The most common technical cause of clicking is work start relay. This component is responsible for starting the compressor motor. At the moment of switching on, the relay gives an impulse, which is accompanied by a loud click. If the refrigerator starts and works normally after a click, there is nothing to worry about. However, if you hear a series of frequent clicks, and the engine does not start or stalls immediately, this is an alarming symptom.
Such a situation may indicate that starting relay has failed and cannot maintain contact, or the compressor itself has jammed. In Samsung models with inverter compressors, diagnostics are more difficult, since a smooth start eliminates loud clicks at startup. If the inverter unit makes knocking noises, this may indicate mechanical wear of the internal parts of the motor.
⚠️ Attention: If you hear frequent clicks, a burning smell and see that the compressor is trying to start, but immediately stops, immediately unplug the refrigerator. Continuing to operate in this mode can lead to burnout of the motor windings.
To check the relay, disassembly of the rear part of the unit is often required. It is necessary to inspect the contacts for carbon deposits and check the integrity of the coil. In some cases, simply cleaning the contacts helps, but more often the entire assembly needs to be replaced. Remember that work on the electrical part should only be carried out when the appliance is completely de-energized.
The noise of the ice maker and defrosting system
Owners of Samsung refrigerators with the function Ice Maker often mistake the sounds of the ice maker for a breakdown. The process of ice formation and unloading into a container is accompanied by mechanical sounds. When the ice is ready, the mechanism releases the cubes, which sounds like a bang or a series of clicks. In addition, when water passes through the tubes, water hammer may occur if the pressure in the line is too high.
The defrosting system also contributes to the acoustic background. Defrost valve When switching, it makes a sound similar to a pebble hitting glass. This occurs because a core moves inside the valve, allowing or blocking the flow of refrigerant. The sound can be quite loud, especially at night when the room is quieter.
- 🧊 Ice maker: makes sounds when ice is released and water is added to the mold.
- 💧 Capillaries: gurgling and clicking when circulating freon after defrosting.
- ❄️ Fan: may click if ice is frozen on the blades (if the sensor is faulty).
If clicks come from the top of the freezer and are accompanied by the sound of falling ice, check whether “slush” (snow mass) has formed on the evaporator. When the fan is running, pieces of ice can get on the blades, causing friction and occasional knocking. In this case, complete defrosting of the refrigerator is required within 24 hours.
Malfunctions of the thermostat and electrics
The thermostat (or temperature sensor in electronic models) is the “brain” that commands the compressor to turn on or off. In mechanical Samsung models, the opening and closing of the thermostat contacts is always accompanied by an audible click. This is the physical principle of operation of a bimetallic strip. If there is a single click when the set temperature is reached, this is normal.
However, if the clicks become chaotic, very frequent, or are accompanied by blinking indicators on the control panel, the problem may lie in electronic control module. Power surges in the network can lead to a malfunction of the board, which is why it begins to randomly send signals to the actuators. In such cases, flashing or replacing the module is often required.
| Sound type | Probable cause | Danger | Actions |
|---|---|---|---|
| Single loud click | Thermostat or relay operation | No | Monitoring |
| Series of rapid clicks | Start attempt compressor | High | Call a technician |
| Plastic cracking | Thermal expansion | No | Ignore |
| Knock with vibration | Touching of the tubes on the body | Medium | Adjust the tubes |
It is important to note that in modern Samsung models With digital control, diagnostic error codes can be displayed. If the clicks are preceded or accompanied by an error code (for example, 11C, 22C), this greatly simplifies troubleshooting. The decoding of the codes can be found in the instructions or service manual.
External factors and incorrect installation
Often the cause of extraneous sounds lies not inside the refrigerator, but in the external operating conditions. If your Samsung refrigerator is not installed level, vibrations from the running compressor will be transmitted to the floor or walls, causing resonance. In this case, it may not be the unit itself that is clicking, but its fastening elements or nearby objects.
Check the distance between the back wall of the refrigerator and the wall of the room. The gap should be at least 5-7 cm to ensure normal air circulation. If the condenser (grid at the back) touches the wall, thermal expansion of the metal will cause loud clicking and knocking noises. Also make sure that the refrigerator is not standing on a slippery floor without clamps.
☑️ Checking the installation of the refrigerator
Another external factor is the quality of the power supply. If your network experiences constant power surges, the protection relay (if built into the plug or socket) may constantly click in an attempt to protect the equipment. In this case, it is not the refrigerator that clicks, but the protection device.
Do-it-yourself methods for eliminating noise
If you are convinced that the clicks are not a sign of a critical breakdown of the compressor, you can eliminate the discomfort yourself. The first step is to audit the internal space. Remove all shelves, trays and containers. Turn on the empty refrigerator. If the clicks disappear, then the reason was the vibration of the dishes or loose interior elements.
To eliminate the vibration of the tubes, you will need access to the rear panel. After removing the compressor cover, inspect the copper tubes. They should not touch each other or the walls of the housing. To fix them, you can use special plastic clamps or pieces of porous rubber. The main thing is to ensure a rigid fixation, but not to squeeze the tube.
⚠️ Attention: When working with the back panel, be extremely careful. The copper tubes of the cooling system are very thin and easily damaged. A puncture of the tube will lead to a freon leak and costly repairs.
If the problem is thermal expansion of the plastic, lubrication of the rubbing surfaces can help. Use a safe silicone lubricant to treat the contact areas of the plastic guides. This will reduce friction and eliminate squeaky clicks. However, do not apply lubricant to the inner walls of the chamber where the products are stored.
Is it possible to lubricate the compressor?
You cannot lubricate the compressor itself from the outside - this will disrupt the heat dissipation and can lead to a fire hazard. Only the moving mechanical parts inside are lubricated if they are accessible and not under voltage.
When you need to call a specialist
There are a number of symptoms in which self-repair is not only ineffective, but also dangerous. If clicking sounds are accompanied by a complete lack of cold in the chambers, this indicates a serious problem in the refrigerant circuit or a compressor malfunction. Also an alarming signal is the heating of the compressor housing to temperatures that cause burns when touched.
A specialist will be needed if:
- 🔌 Knocks out plugs: relay clicks are accompanied by a power outage in the apartment.
- 🔥 A burning smell: there is a smell of burning wiring or plastic.
- 📉 Performance drop: the refrigerator runs continuously, without turning off, and clicks.
Professional diagnostics include checking the pressure in the system, the integrity of the motor windings and starting current parameters. Only with the help of special tools (testers, pressure gauges) can you accurately determine whether the unit needs to replace the compressor or whether it is enough to replace the starting device.
Prevention of extraneous sounds
To minimize the risk of problems, regularly service the refrigerator. Cleaning the condenser from dust and animal hair improves heat transfer and reduces the load on the compressor, making it run quieter. It is recommended to vacuum the rear grille at least once a year.
Monitor the condition of the door seals. If the rubber is dry or dirty, the door does not fit tightly, and warm air enters the chamber. The compressor is forced to work longer and more often, which increases the number of on/off cycles and, accordingly, relay clicks. Wipe the seals with a soft cloth and soapy water.
Use a voltage stabilizer if your network has frequent interruptions. This will extend the life of the electronic module and compressor. Modern Samsung refrigerators are sensitive to the quality of current, and a stable voltage is the key to their quiet and durable operation.
Why does the new Samsung refrigerator click louder than the old one?
New models often have more powerful compressors and an efficient, but less noise-insulated design to save materials. In addition, new plastic parts have not yet “broken in” and may produce more thermal expansion sounds. Over time (after 2-3 weeks), the sounds usually become quieter.
Can an inverter compressor click?
A classic inverter compressor works smoothly and should not click when starting. Clicks in such models can only be produced by valve solenoids, protection relays or elements of the No Frost system. Loud mechanical clicks from the motor itself are uncharacteristic for the inverter and require diagnostics.
What to do if clicks appear after defrosting?
If you defrosted the refrigerator and clicks appeared after turning it on, let it run for several hours. There may be condensation in the system or ice in the drain. If the sound does not go away after a day and is accompanied by a lack of cold, an ice block could form in the capillary tube.
Does the installation level affect the clicks?
Yes, it does directly. An incorrect level causes the frame to skew, which can cause doors to not close tightly (causing the compressor to work) and vibration to be transmitted to the floor more effectively, creating resonating sounds. Adjusting the legs is the first thing to do.