The situation when you open the refrigerator and there is room temperature inside always takes you by surprise. Products begin to deteriorate, and panic arises, because the serviceability of this unit is critically important for everyday life. Most often, the problem lies in a violation of the refrigerant circulation or malfunction of the control electronics, which requires immediate intervention.
Before calling a technician or looking for spare parts, it is necessary to carry out an initial diagnosis. Often the reason The camera has stopped freezingis a banal blockage of the capillary tract or failure of sensors, which can be checked independently. In this article, we will analyze in detail the mechanics of the cooling process and point out typical malfunctions.
Understanding the operating principles of your unit will help you avoid costly repairs. If compressor there is a buzz, but there is no cold, or, on the contrary, there is silence, the algorithm of actions will be radically different. Let's look at all possible failure scenarios one by one.
Primary diagnostics and external factors
Before disassembling the unit, make sure that the problem is not caused by external circumstances. Sometimes the refrigerator is working properly, but its operating conditions are violated. For example, if the unit is located close to a wall or in a niche, the heat exchange of the condenser is disrupted, and the system does not have time to remove heat.
Check the tightness of the fit door seals. If the rubber is dry or dirty, warm air from the room constantly penetrates inside. The compressor is working hard, trying to compensate for heat inflows, but cannot reach the desired temperature. This is a common reason why freezer door seals work poorly.
⚠️ Attention: If you notice that the rubber on the door has come off or has cracks, do not try to glue it with superglue. This is temporary and the adhesive fumes can be toxic. It is better to order a new cuff according to the refrigerator model.
It is also worth checking the thermostat settings. Perhaps one of the household members accidentally moved the control to the “minimum” position or turned on the fast freezing mode, which was then not turned off. In modern electronically controlled models, the failure could have occurred due to a power surge.
Problems with the No Frost system and airflow
If you have a model with the system No Frostthen the lack of cold is often associated with the fan stopping. This unit is responsible for the forced circulation of cold air from the freezer to the refrigerator compartment. If the fan is stopped, the evaporator is covered with ice, and the main chamber is warm.
The reason for the stop may be ice freezing on the blades or failure of the fan motor. In the first case, a full defrosting unit is required during the day. The second is to replace the motor. You can determine the problem by ear: when the compressor is running, you should hear air noise.
Another enemy of the No Frost system is Defrosting heating element. If it burns, the ice does not melt, the drainage hole becomes clogged, and after a while the ice plug blocks the fan from working. The symptoms are as follows: the refrigerator freezes for several days, and then stops.
How to check the defrosting heating element with a multimeter?
To check, you need to get to the evaporator, remove the heating element and ring it with the probes of the multimeter. The resistance should be within normal limits (usually 200-500 Ohms). If the device shows a break (one on the left or right depending on the model), the element requires replacement. Be careful not to damage the wires when dismantling.
It is important to consider that in models of different brands, such as Indesit or LG, access to the fan may be hidden behind the back wall. To check it, partial disassembly of the internal chamber will be required.
Malfunctions of the compressor and start relay
The heart of the refrigerator is compressor. If it is silent, although the indicators are on, the problem may be in the start protection relay. This is a small device that provides an impulse to start the engine. If it breaks down, the compressor may hum for a couple of seconds and click, but not start.
If the compressor works constantly, without turning off, but the temperature does not drop below +10...+15 degrees, this is an alarming sign. There may be a loss of performance of the piston group or refrigerant leak. In the latter case, the motor overheats, trying to compensate for the lack of freon.
Replacing the relay yourself is possible if you know how to use tools. However, diagnosing the compressor itself requires professional equipment. If you hear a knock or metallic clanging, it is better to turn off the unit to avoid a fire.
☑️ Compressor diagnostics
It is worth noting that inverter compressors, which are found in models Samsung and Bosch, operate quieter and smoother. Their diagnosis is more complicated and often requires connecting to a service laptop to read error codes.
Refrigerant leak and capillary tube blockage
These two problems often go hand in hand and are the most difficult to fix. Freon is the working fluid that transfers heat. If there is little or none at all, the cold will have nowhere to come from. Leaks occur in places where tubes are soldered or due to corrosion of the evaporator.
Clogging of the capillary tube occurs due to moisture entering the system or oil breakdown products. An ice or paraffin plug forms at the constriction site, which blocks the gas flow. The symptoms are similar to a leak: the compressor works, but there is no cold.
To eliminate these faults you need:
- 🛠️ Finding the leak using a leak detector or soap solution.
- 🔥 Soldering in the filter-drier and purging the system nitrogen.
- ❄️ Refilling with a new amount refrigerant strictly by weight.
⚠️ Attention: Self-charging with freon without evacuation of the system will lead to a quick exit of the compressor building. There should be no air or moisture in the system!
Failures in the electronic control module
In modern refrigerators, the entire process is controlled by electronic module. If it is "glitchy", it may not command the compressor or fan to start. This often happens after power surges or thunderstorms.
Signs of a board malfunction: random blinking of indicators, failure of control buttons, lack of response to changing temperature settings. Sometimes a full reset helps (disconnecting from the network for 15-20 minutes), but if a board element has burned out, repairs will be required at the service center.
It is also worth checking temperature sensors. If the sensor in the refrigerator compartment shows incorrect data (for example, that it is -5°C, although in fact it is +20°C), the module will not turn on the refrigeration. Replacing sensors is a simple procedure, but requires knowledge of their location.
| Symptom | Probable Cause | Necessary actions |
| :--- | :--- | :--- |
| Compressor won't start | Start relay faulty | Replacing the relay |
| Buzzing and clicking | Compressor or relay jammed | Motor diagnostics |
| Works, but doesn't freeze | Freon leak or blockage | Refilling or cleaning the system |
| It's warm in the cell, there's ice in the freezer | Fan doesn't work | Checking the airflow No Frost |
| Indicators flash | Control board failure | Rebooting or repairing the board |
When you need to call a technician
Not all breakdowns can be repaired with your own hands. If you have checked the seals, defrosted, made sure there is voltage, but the refrigerator Indesit or Atlant still does not freeze, it’s time to call the specialists. Especially if you need to work with gas or solder pipes.
Critical situations requiring a professional:
- 🔥 There is a smell of burnt conductivity or plastic.
- 💧 A puddle of oil has formed under the refrigerator (not water!).
- 🔊 The compressor makes loud, uncharacteristic sounds.
An attempt to independently repair complex components without experience can lead to final breakdown of the unit. The cost of restoration after unqualified intervention often exceeds the price of a new refrigerator.
Prevention and proper care
So that the question “why the camera doesn’t freeze” does not arise before you regularly, follow simple operating rules. Regularly clean the drainage hole in the refrigerator compartment with warm water to avoid blockages.
Do not place hot food in the refrigerator compartment - this creates excess humidity and stress on the system. Once a year, it is advisable to defrost the refrigerator (even the No Frost system) for prevention and washing the condenser from behind, if you do not have a hidden box.
Monitor the temperature in the room. If the refrigerator is in an unheated garage or on a balcony in winter, the oil in the compressor thickens, and starting it becomes impossible or dangerous for the mechanism.
Is it possible to turn on the refrigerator immediately after defrosting?
No, it is not possible. After defrosting and washing, you must wait at least 2-3 hours (or better yet, a day) before turning it on. The oil that has drained into the circulation system must return to the compressor crankcase, otherwise water hammer is possible.
Why does the refrigerator take a long time to gain temperature after defrosting?
This is normal. After complete thawing, the walls and products are at room temperature. The unit may require from 4 to 12 hours of operation in enhanced mode to reach the specified mode. Do not completely load the chamber with food in the first hours.
Can the refrigerator not freeze due to poor-quality electricity?
Yes, low voltage in the network (less than 190V) does not allow the compressor to start or operate at full power. In such cases, it is necessary to use a voltage stabilizer, otherwise the motor windings will burn out.
What to do if there is ice in the freezer and heat in the refrigerator?
Most likely, the problem is in the No Frost defrosting system (the heating element, timer or sensor is burned out) or the air supply channel is clogged. Defrosting for 24 hours and subsequent diagnostics of defrosting elements is required.
How often do you need to change the sealing gum?
The service life of the seal is 5-7 years. If it has become hard, sticky or has stopped being magnetic, it needs to be replaced, otherwise the compressor will work without interruption, consuming excess electricity.