Many owners household appliances are faced with a situation where, after purchase or transportation, the upper chamber of the refrigerator Atlant does not cool the food as it should. Often this is not a breakdown, but a design feature or incorrect settings. In two-chamber models, it is the freezer compartment (usually located on top) that is the source of cold for the entire unit. If it does not work, then the temperature in the lower compartment will begin to rise, which will lead to damage to the contents.
The process of starting the compressor and cooling system requires compliance with a certain sequence of actions. Incorrect activation may result in false activation of safety mechanisms or incorrect operation of the thermostat. In this article, we will analyze the technical nuances of turning on the upper compartment, consider the differences between mechanical and electronic control panels, and also discuss what to do if the system is silent after connecting to the network.
Understanding the principle of operation refrigeration circuit will help you avoid panic in the event of a temporary lack of cold. Modern models Atlant equipped with smart electronics, which require time for initial diagnosis. We will describe in detail the steps necessary to correctly put the device into operation and point out common mistakes that users make when starting up for the first time.
The principle of operation of the Atlant two-chamber system
In most models refrigerators Atlant with a top freezer compartment use a single-circuit cooling system. This means that the cold is generated in the upper compartment by the evaporator, and then, thanks to natural convection or forced circulation (in No Frost models), is distributed throughout the entire volume. The compressor, located in the lower rear part of the unit, pumps refrigerant, which, passing through the capillary tube and entering evaporator, boils and takes away heat.
The key control element here is the thermostat or electronic module. It is he who makes the decision to turn on the compressor. If you have just installed your refrigerator, it is important to understand that the system will not start working immediately. It takes time for the electronics to stabilize the pressure in the circuit, especially if the device was transported horizontally. The oil must drain into the compressor crankcase, otherwise water hammer is possible.
⚠️ Attention: If the refrigerator was transported lying down, be sure to keep it in an upright position for at least 4-6 hours before plugging it in. An attempt to start the compressor earlier may lead to its failure.
The operation of the upper chamber directly affects the climate in the entire refrigerator. In models with crying evaporator an ice crust forms on the back wall of the upper compartment, which periodically melts when the compressor stops. In systems No Frost the fan drives dry cold. Understanding the type of your system will help you correctly interpret the sounds and behavior of the unit in the first hours of operation.
Preparing for the first start of the device
Before wondering how to turn on the upper chamber, you need to ensure the correct conditions for starting. Installation of a refrigerator Atlant requires maintaining clearances for ventilation. If the unit is located close to a wall or furniture, heat exchange is disrupted, and the compressor may work with overload, never reaching the desired temperature in the chamber.
Check the integrity of the rubber seals on the doors. Even a microscopic gap will result in warm air constantly flowing inside, and the sensors will command the motor to run endlessly. Make sure there are no shipping locks, plastic wrap, or foreign objects inside the cameras blocking the ventilation openings.
- 🔌 Make sure the outlet is grounded and meets the power requirements (usually up to 2 kW).
- ❄️ Clear a minimum of 10 cm of space around the rear radiator grille at all points sides.
- ⚖️ Adjust the support legs so that the door closes itself under the influence of gravity when opened to 45 degrees.
Only after these conditions are met can you connect the power cord. In the first minutes, you can hear the gurgling or noise of flowing freon - this is a normal operating process. Refrigerant begins to move through the system, filling the tubes and evaporator. Do not open the doors during the first 2-3 hours of operation to allow the system to return to operating mode without external heat inflows.
Setting the mechanical thermostat
In classic models Atlant temperature control is carried out using a mechanical knob located inside upper chamber or on the ceiling of the refrigerator compartment. This regulator is not digital, but is a scale from 0 to 7 (or from Min to Max). Turning the knob changes the compression force of the spring inside the thermostat, determining the temperature at which the contacts will open and turn off the compressor.
For initial activation and checking the functionality of the upper chamber, it is recommended to set the regulator to the middle position (usually number 3 or 4). This is the optimal mode for most operating conditions. If you turn the knob to maximum (7 or Cold), the compressor will work continuously, trying to reach an unattainable temperature, which will lead to food freezing and excessive energy consumption.
It is important to distinguish between the thermostat and the quick freeze button (if there is one). The thermostat is responsible for maintaining the temperature, and the freeze button forcibly disables the automatic shutdown of the compressor. For normal food storage mode, this button must be turned off. If, after setting the middle position, after 1-2 hours the walls in the upper chamber do not become cold, and the compressor is working, a more in-depth diagnosis may be required.
Mechanical regulators are sensitive to sudden voltage changes. If your network fluctuates frequently, the thermostat may become stuck. In this case, try to smoothly turn the knob until it clicks (turn off) and back. Sometimes this helps restore contact inside the appliance.
Control of the electronic module and display
Modern refrigerators Atlant XA or XM series are often equipped with electronic control with a display on the door or inside the chamber. Here the process of “turning on” the upper chamber looks different. Once connected to the mains, the display may light up, but the compressor will not start yet. The system performs self-diagnosis of the sensors. You may need to press the power button or select the operating mode.
In models with the function Super Freeze (Super Freeze), the activation of the upper chamber occurs more intensely. When you turn on this mode (usually by holding the button with the snowflake symbol for 3 seconds), the corresponding indicator lights up. The compressor switches to continuous operation. This mode is designed for quick freezing of a large volume of food, but it cannot be kept on all the time - the automation itself will turn it off after a certain time (usually 24-72 hours).
☑️ Checking the electronic control
If the temperature readings are flashing on the display or an exclamation mark is on, this is a signal that the target temperature in the upper chamber has not yet been reached. This is normal for the first run, which can last up to 12 hours. However, if the indication does not change for a day, there may be a failure in the control module or an open circuit of the sensor.
⚠️ Attention: Electronic modules are sensitive to static electricity. Do not touch the control board contacts with wet hands and avoid using aggressive chemicals when cleaning the control panel.
Super Freeze mode and fast freezing
The quick freeze function is a powerful tool that is often confused with regular activation. In refrigerators Atlant this mode forcibly keeps the compressor on, ignoring the thermostat readings, until a very low temperature is reached or the timer expires. This is useful when you have loaded a lot of warm products into the upper chamber.
The mode is usually activated by a button labeled “Super” or an image of a snowflake. In mechanical models, this may be a red button: if it is “recessed”, the mode is on, if it sticks out, it is off. In electronic models, you need to hold the button for several seconds until a sound signal appears or the indicator lights up. Remember that in this mode electricity consumption increases significantly.
You cannot use this mode to constantly maintain cold. This will cause the evaporator to ice up, make it difficult for the fan to operate (in No Frost) and may cause the compressor to overheat. After the food has frozen (usually after a day), the mode must be deactivated manually or wait for automatic shutdown, if the model provides this.
If you turn on Super Freeze, and the temperature in the upper chamber does not drop, check whether the chamber is overloaded. Dense packing of food blocks air circulation. The cold simply will not be able to penetrate into the center of the package, and the sensor will not detect a decrease in temperature.
Waiting time and the first cooling cycle
One of the most common questions: “How long should the refrigerator work for the cold to appear?” For models Atlant the normal time for first entering the mode is considered to be a period from 2 to 12 hours. It all depends on the ambient temperature, the volume of loaded products and the temperature inside the chambers.
In the first hours, the compressor can work with short breaks or without them at all. This is fine. The system tries to cool not only the air, but also the chamber walls, shelves and the products themselves, which have a high heat capacity. Only after the entire mass has cooled down will full cycles of on and off begin.
| Working stage | Duration | What happens |
|---|---|---|
| First start | 0 - 30 min | Start the compressor, refrigerant circulation, noise in the pipes |
| Active cooling | 1 - 6 hours | Decreased air temperature, appearance of frost on the evaporator |
| Stabilization | 6 - 12 hours | Cooling products, reaching the specified temperature conditions |
| Work cycle | Continuous | Periodic switching on to maintain temperature |
Do not try to speed up the process by opening the doors to check the cold. Each such opening lets in warm, moist air, which immediately condenses on the cold walls, forming excess ice. Wait until the end of the first full cycle, when the compressor turns off on its own.
Diagnostics: why the upper chamber does not work
If more than 12 hours have passed, the compressor is working (or trying to start), and it is warm in the upper chamber Atlant it is necessary to look for the cause. First of all, eliminate the human factor: check whether the door is tightly closed, whether the defrost button (if any) is stuck, whether the regulator is set correctly.
One of the common problems is freon leakage. If you hear the compressor hum for a couple of seconds, then click and go silent, and repeat cyclically, this is a sign of low pressure in the system or problems with the start relay. In this case, independent repair is impossible; you need to call a technician to find the leak and refill it.
Another common reason is a malfunction of the thermostat or sensor. If it does not “feel” the heat, it does not give the command to turn on the compressor. You can check this by closing the thermostat contacts (for mechanics) or checking the resistance of the sensor with a multimeter (for electronics), but this requires the skills of an electrician.
What to do if you hear a click, but there is no cold?
If you hear a relay click, but the compressor does not start, the motor-compressor may be stuck or the winding burned out. The reason could also be the start relay. Try gently tapping the refrigerator body (not too hard!), sometimes this helps to dislodge a jammed piston, but this is a temporary measure.
A clogged capillary tube is another technical defect typical of older models. Freon does not circulate, the pressure rises, and the protection system stops the motor. A symptom may be a hot radiator grill only in the upper part or its complete lack of heating.
Why is it too cold in the upper chamber, but warm in the lower chamber?
This is a classic sign of a malfunction of the cold removal system or problems with the damper (if there is one). In simple models Atlant this may mean that the thermostat is set to maximum, and cold air from the freezer is actively going down, but does not have time to warm up. It is also possible that the air ducts may freeze. Try to defrost the refrigerator completely (24 hours with the doors open) and start it again.
Is it possible to turn on the Atlant refrigerator immediately after transportation?
It is strictly not recommended. When shaking, oil from the compressor could enter the cooling circuit. If you turn on the unit immediately, the compressor will run dry or try to compress the liquid (oil), which will lead to water hammer and valve failure. Allow the oil to drain back into the crankcase - at least 3-4 hours if transported vertically, and up to 8 hours if horizontally.
How to understand that the Atlant refrigerator compressor is working?
Put your hand on the side wall of the case (usually on the right or left, where the condenser is hidden) or on the grille at the back. If the compressor is running, the walls will gradually heat up (become warm or hot). Also listen to the sound: a working engine hums smoothly, without clanging, knocking or whistling. Periodic switching on and off is a normal operating cycle.
Do you need to load products before turning on for the first time?
No, it is better to perform the first launch with empty chambers. This will make it easier for the system to cool the internal volume, and it will reach operating mode faster. Loading with warm products will increase the first cycle time and create extra load on the compressor. It is better to put the food in a cooled refrigerator.