After scheduled or emergency defrosting, owners of household appliances often encounter incomprehensible behavior of the unit. Atlant refrigerator it can behave differently: buzz continuously, turn on and off at short intervals, or not dial for a long time the desired temperature. Understanding the physiological processes inside the cooling system is necessary in order not to panic ahead of time.
Normal operation of the equipment after thawing the ice depends on many factors, including the room temperature and the degree of heating of the compressor during idle time. If you defrosted two-chamber refrigerator with the No Frost system or a classic model with a crying evaporator, the time to reach the mode will be different. On average, stabilization of temperature indicators takes from 2 to 8 hours.
The most critical moment is the first start of the engine. If the compressor does not turn off within 12 hours of continuous operation after reaching cold, this is a sign of a malfunction. However, you should not rush to conclusions, since the initial start-up often takes longer than subsequent cycles. Let's look in detail at what is happening inside the system and how to determine the normal limit.
Physics of the process: why the refrigerator runs longer than usual
During defrosting, the internal space of the unit and all its components are heated to room temperature. When you reconnect Atlant refrigerator to the power supply, the thermostat detects the high temperature and gives the command to start the compressor. The engine begins to operate in maximum load mode, trying to cool the warm air, food and chamber walls.
Unlike the normal mode, when you only need to maintain cold, active cooling of a large volume of heat is required here. Thermal capacity products and metal shelves are high, so heat removal takes a significant amount of time time. During this period, the refrigerator may not turn off at all, working in a single cycle until the specified parameters are reached.
⚠️ Attention: If you defrosted the equipment in a hot room or loaded the chambers with warm products immediately after switching on, the operating time of the compressor may increase by one and a half times. Do not overload the unit in the first hours.
It is also worth considering the inertia of the sensors. The thermostat may not “feel” a real decrease in temperature immediately, especially if it is located in an area where air circulation has not yet been established. Therefore cooling cycle can be extended artificially by the electronics or mechanics of the device.
Standard operating time indicators for different models
The time to reach the mode directly depends on the type of defrosting system and the volume of the chambers. Models with manual defrosting are usually faster because their evaporator is open to direct contact with the air in the chamber. Systems No Frost require time to cool the hidden air ducts and the fan.
For classic two-chamber Atlant models, continuous operation of the compressor for 3-5 hours after switching on is considered normal. If the room is cool (about +18...+20°C), this process may take less time. In hot weather (+25°C and above), the refrigerator will work longer.
Below is a table with approximate data on the operating time before the first shutdown or entering normal mode:
| Model type Atlant | Chamber volume (l) | Time until the first shutdown | Time for complete stabilization |
|---|---|---|---|
| Single-chamber (crying) | 100–200 | 1.5 - 3 hours | 4 - 6 hours |
| Double-chamber (manual defrosting) | 250–350 | 3 - 5 hours | 6 - 8 hours |
| Two-chamber (No Frost) | 300–400 | 4 - 6 hours | 8 - 10 hours |
| Three-chamber / Side-by-Side | 450+ | 6 - 8 hours | 10 - 12 hours |
It is important to understand that these figures are relevant provided that the refrigerator was empty or loaded with food at room temperature. The presence of a large amount of warm food can shift these indicators.
Correct startup algorithm after defrosting
In order to compressor not experience excessive loads, it is important to follow the sequence of actions when turning on. Many users make the mistake of loading products immediately after plugging the cord into the outlet. This causes the engine to wear out.
First turn on the empty refrigerator and let it idle. This will allow the refrigerant system to be evenly distributed throughout the circuits, and the evaporator to be covered with a layer of frost (in models without No Frost). Only after the cold has established inside can you start loading.
☑️ Correct start of the refrigerator
If you are using a mechanical thermostat, set the knob to the middle position (usually number 3 or 4 out of 7). Do not immediately set it to maximum, as this may lead to “freezing” of the temperature sensor and incorrect operation in the future.
Why the refrigerator does not turn off: the main reasons
If more than 10-12 hours have passed, and Atlant refrigerator continues to hum without interruption, it is necessary to carry out diagnostics. Constant operation of the compressor leads to its overheating and eventual failure. There may be several reasons for this behavior, and they are divided into user errors and technical malfunctions.
Most often the problem lies in a violation of tightness or thermal insulation. Check the tightness rubber seals on the doors. If the rubber is dry, dirty or the door is skewed, warm air constantly flows inside and the unit cannot gain temperature.
Another common factor is installing the device too close to the wall or heating appliances. Impaired air circulation around the condenser (grid at the back) results in the freon not having time to cool down and return to the compressor in a liquid state.
⚠️ Attention: Do not install the refrigerator in a niche without gaps. The minimum distance to the rear wall should be 5–7 cm, and to the side walls - at least 2 cm.
Technical malfunctions during long-term operation
If external factors are excluded, and refrigerator still does not turn off, speech may go about the breakdown. One of the common problems is freon leakage. In this case, the compressor works constantly, trying to compensate for the lack of refrigerant, but either the cold is not collected at all, or there is very little of it.
The thermostat or air sensor may also fail (in models with electronic control). If the sensor is stuck or transmits incorrect temperature data, the control unit will command continuous cooling. In models with No Frost the defrost sensor often breaks down, causing the evaporator to become overgrown with ice and stop cooling the chamber, although the fan is humming.
Clogged capillary tube or compressor malfunction (loss of performance) also lead to the described symptoms. In such cases, independent repair is impossible and a call to a specialist is required.
How to distinguish a freon leak from a compressor breakdown?
When there is a freon leak, the condenser (grid at the back) is often only partially cold or warm, and the compressor runs very hot. If the compressor breaks down (hydraulic knocking, lack of pressure), the nature of the sound changes, a metallic clang appears, and there is no cooling at all.
The influence of ambient temperature
You cannot ignore the climate class of your Atlant refrigerator. Most household models are designed to operate at ambient temperatures from +16°C to +32°C. If you place the unit in an unheated country house in winter or in the kitchen, where in summer the temperature rises above +35°C, normal operation is disrupted.
In a room that is too hot, heat exchange is difficult, and the refrigerator will work almost non-stop. In a too cold room (below +10°C), the oil in the compressor thickens, and the thermostat may not turn on the motor, since it is already “cold” in the chamber, which is also harmful.
There is a myth that an open refrigerator in winter can cool the kitchen. In practice, this will only lead to equipment breakdown, since freon will not have time to transition from a gaseous state to a liquid state in the condenser due to the low temperature.
Errors when loading products
After defrosting, there is a great temptation to immediately fill empty shelves with supplies. However, loading a large volume of food, especially if it has not had time to cool to room temperature, creates a colossal heat load. Heat capacity The water content of the food is high, and it takes a lot of energy to cool it.
If you have loaded the refrigerator full of warm food, the compressor may not turn off for a day or more. This is an extreme mode that reduces the life of the equipment. Always allow food to cool before placing it in the chamber.
Also, do not place food close together to the rear wall in models with a weeping evaporator. This disrupts air circulation and can lead to local overheating of the sensors or, conversely, freezing of food.
What to do if the refrigerator does not get cold
The situation when Atlant refrigerator works continuously, but the cold does not get cold, is critical. This is a direct sign that the cooling system is not functioning, despite the engine running. Most often, this indicates a complete refrigerant leak or blockage.
In this case, further operation is useless and dangerous. The compressor will work hard, trying to create pressure in an empty system, which will lead to its combustion. It is necessary to immediately disconnect the device from the network.
Check that the ventilation in the chamber is not blocked. Sometimes users accidentally cover the air circulation holes with bags or foil. If everything is in order with the circulation, but there is no cold, you cannot do without a specialist.
⚠️ Attention: Do not try to pierce the system yourself or add freon without vacuuming. This will lead to moisture entering the circuit and the final breakdown of the expensive compressor.
Is it possible to turn on the refrigerator immediately after defrosting?
Yes, you can, but only after you thoroughly wipe all surfaces dry and make sure that there is no water in the drain hole. However, you cannot load food right away - let the unit run idle for at least 2 hours.
Why does the Atlant refrigerator hum loudly after turning it on?
A loud hum in the first hours of operation may be due to the fact that the compressor is running at full power. The cause may also be incorrect installation (transport bolts, if any, were not unscrewed, or an uneven floor). If the noise does not subside after a day, check whether the tube is touching the back of the case.
Do you need to set the temperature again after defrosting?
In mechanical models, the thermostat maintains its position. In electronic models with a display, settings are usually stored in memory. However, after defrosting, it is useful to check the settings, since a power surge when turning on could disrupt the mode.
How long can you not open the refrigerator after starting?
It is advisable not to open the doors during the first hour of operation. Every time you open the door, you let in warm, moist air, which disrupts the initial cooling process and increases the operating time of the compressor.