The situation when the refrigerator Samsung stops cooling always takes you by surprise, because it threatens to spoil a large stock of food. The owner immediately notices that the shelves have become warmer, and food begins to spoil faster than usual. In most cases, the problem lies not in the failure of the electronics, but in banal operating irregularities or blockages.
Modern models, such as Side-by-Side or two-chamber units of the series RB, are equipped with a complex system No Frost, which is sensitive to overloads and voltage surges. Before calling a technician, it is necessary to conduct an initial diagnosis to understand the scale of the problem. Often it is enough to simply defrost the chamber or check the tightness of the door.
If, after simple manipulations, the cold does not return, and the compressor works continuously or, conversely, is silent, the situation requires deeper intervention. In this article, we will look at the main causes of cooling system failure and how to eliminate them.
Primary diagnostics: checking the operating mode
The first thing to do if the refrigerator Samsung does not freeze is to check the temperature settings. Often, users accidentally activate the Vacation or Eco mode, which raises the temperature in the refrigerator compartment to 15°C to save energy. In this case, the freezer can work normally, and the main chamber will be warm.
Make sure that the fast freezing mode is not turned on Fast Freeze, which forces the compressor to work at its limit, but may also interfere with air circulation in adjacent compartments. It is also worth checking whether the child lock has worked, which could change the settings accidentally.
⚠️ Attention: If you see flashing temperature indicators on the display, this is a signal that the system has detected a deviation from the set parameters and requires your intervention.
Check the tightness of the rubber seals around the perimeter of the door. If a foreign object gets into the gap or the seal is deformed, cold air will escape and the compressor will not be able to compensate for the heat gain. A simple test with a sheet of paper will help identify leaks: hold the sheet with a door and try to pull it out; if it slides freely, the seal needs to be adjusted or replaced.
Problems with the No Frost system and defrosting
The most common reason why a refrigerator Samsung does not freeze well lies in the automatic defrosting system. Over time, a coat of ice builds up on the evaporator, hidden behind the back wall. If the defrost heating element, thermostat or timer fails, the ice does not melt, and the drainage hole becomes clogged.
As a result, the fan No Frost cannot drive cold air through the channels, and cooling stops, although the compressor continues to hum. In such cases, you can often hear the fan cracking as it hits the frozen ice with its blades. This is a sure sign that the system requires complete defrosting.
How does the defrost system work?
The defrost system in Samsung refrigerators is activated at certain intervals when the compressor is running. The heating element heats the evaporator, melting the frost. Water flows into the pan. If one of the elements of the circuit (sensor, relay, heating element) is faulty, the cycle is disrupted and the ice blocks the air flow.
To solve the problem, it is necessary to completely defrost the unit, turning it off from the network for at least 24 hours. The doors must be open. Only after the ice has completely melted and dried can you turn on the device. If after a few days the situation repeats, you will need to replace the faulty elements of the defrosting system.
☑️ Correct defrosting of the refrigerator
Malfunctions of the compressor and start relay
If the refrigerator Samsung does not turn on at all or makes a short click and goes silent, the problem may be in the start relay or itself compressor. A relay is a small block that provides an impulse to start the motor. If it burns out, the compressor cannot start, although electricity is supplied to it.
A more serious situation is the failure of the compressor itself compressor. Inverter motors, which are equipped with many modern models Digital Inverter, are sensitive to voltage surges. If you hear a humming sound, but there is no cold, or the motor operates with strong vibration and overheats, this is an alarming symptom.
| Symptom | Possible cause | Probability of breakdown |
|---|---|---|
| Click and silence | Start relay | High |
| Humming without starting | Compressor jammed | Medium |
| Works constantly | Freon leakage | High |
| Strong vibration | Wear of shock absorbers | Low |
Diagnostics of a compressor requires special tools, such as a pressure gauge and a tester. It is dangerous to climb into the electrical part of the motor on your own, so if you suspect a malfunction, it is better to contact a specialist. Replacing a compressor is an expensive procedure that requires evacuation of the system and refilling the refrigerant.
Leakage of refrigerant (freon)
When the refrigerator Samsung works without stopping, but the temperature does not drop below +10°Cand the condenser (rear grille) remains cold, most likely there is a freon leak. The refrigerant circulates in a closed circuit, and if a microcrack appears in the tubes, the gas evaporates.
Often a leak occurs in the foamed part of the housing or in the soldering areas of the evaporator tubes. It is difficult to notice this visually, since freon is colorless and odorless. The only sign may be swelling of the side walls of the chamber or the appearance of oily spots where the tube is damaged.
⚠️ Attention: Self-filling the refrigerator with freon is impossible without professional equipment. An attempt to simply “add gas” without finding and eliminating the leak will not give a long-term result.
The restoration process includes finding the location of the leak using a leak detector, sealing the damaged area, vacuuming the system to remove moisture and air, and only then - charging a strictly defined amount of refrigerant specified in the technical documentation of the model.
Clogged capillary tube
Another technical reason why the refrigerator Samsung stopped freezing is a clogged capillary tube. This is a narrow channel through which freon enters the evaporator. Over time, oil oxidation products or moisture may accumulate in the system, which turns into an ice plug.
Signs of a blockage are similar to a leak: the compressor runs for a long time and overheats, the condenser heats up unevenly (only at the beginning or end), and there is no cold in the freezer. Sometimes you can hear gurgling sounds, indicating obstructed refrigerant circulation.
This problem can be eliminated by a technician by purging the system with nitrogen under high pressure or replacing the filter drier and capillary tube. In some cases, a complete recharge of the system is required.
Faults in electronics and sensors
Modern refrigerators Samsung are controlled by electronic modules. If the main control unit malfunctions or burns out, it may not command the compressor or fan to turn on. Temperature sensors are also a common cause of failures.
If the air or evaporator sensor shows incorrect values (for example, it reports that there is already enough in the chamber -20°C, although it is warm there), the control module will not turn on the cooling. In such cases, error codes such as 22C, 39C or 88C.
A multimeter is used to check the sensors. Their resistance is measured at different temperatures. If the readings differ from the table values for a specific model, the sensor must be replaced. The error is often reset after replacing the part and rebooting the refrigerator.
Samsung error code table
The electronic diagnostic system itself will tell you where to look for the problem. Below is a breakdown of the most common errors associated with the lack of cold.
| Error code | Problem description | Probable solution |
|---|---|---|
| 21C / 22C | fridge compartment temperature sensor error | Replacement sensor |
| 23C / 24C | Error in the freezer temperature sensor | Replacing the sensor or checking the wiring |
| 39C | Error in the defrosting sensor | Checking the heating element and defrost sensor |
| 85C | Communication error between modules (for two-compressor ones) | Reboot or replace the board |
| 88C | Power failure or problems with the display | Checking voltage and cables |
A long period of time often helps to reset the error disconnecting the refrigerator from the network (for 15-20 minutes). If after turning on the code appears again, it means that the malfunction is hardware in nature and requires repair.
Prevention and proper care
In order for the refrigerator Samsung to serve for a long time and not let you down, it is important to follow the operating rules. Do not load hot food into the chamber - this puts excess load on the compressor and leads to the formation of excess condensation. Also, do not place the unit close to the wall, leave a gap for ventilation of the condenser.
Regularly check the cleanliness of the condenser grille at the back. Dust and pet hair act as a heat insulator, preventing heat dissipation, causing the engine to wear out. It is recommended to clean with a vacuum cleaner once every six months.
⚠️ Attention: Do not use sharp objects (knives, screwdrivers) to chip ice in the freezer. One awkward movement can pierce the thin-walled evaporator, and then freon leakage cannot be avoided.
Monitor the condition of the products: do not overcrowd the chamber. For effective air circulation in the system No Frost there is a need for free space between the products and the walls. Air should flow freely through the ventilation holes.
Is it possible to repair a refrigerator yourself?
Basic operations, such as replacing a lamp, adjusting the legs or replacing the seal, are available to any home craftsman. However, work related to refrigerant (freon), soldering pipes and complex electronics require a license, special tools and knowledge. Inept intervention can lead to final breakdown of the unit.
Frequently asked questions (FAQ)
Why does the Samsung refrigerator hum but does not freeze?
Most likely, there is a freon leak or the capillary tube is clogged. The compressor tries to pump, but there is little or no refrigerant in the system. The blower fan may also fail.
How long does it take to defrost a Samsung refrigerator?
For complete and high-quality defrosting, especially if there is a suspicion of an ice plug in the No Frost system, the unit must stand turned off with the doors open for at least 24 hours.
What does flashing mean? indicators on the display?
Flashing usually indicates that the temperature in the chamber is higher than the set one. This happens the first time you turn it on, after defrosting or loading a large amount of warm food. If the indicators blink for a long time - more than a day, this is a signal of a malfunction.
Is it possible to operate the refrigerator if it does not freeze?
It is strictly not recommended. Running the compressor without turning it off (in an attempt to catch up with the cold) in the absence of freon circulation will lead to its overheating and burnout of the windings in a matter of hours or days.
How often do you need to change the filter in a Samsung refrigerator?
If we are talking about a water filter for an ice maker, it is changed every 6 months. If we mean a filter drier in the cooling system, then it is changed only when the system is repaired (freon leakage) and does not have a scheduled replacement period during normal operation.