The situation when Atlant refrigerator works without interruption is familiar to many owners of this equipment. You notice that the compressor is humming for days, and the rest breaks that were typical before have disappeared or become extremely rare. This is not just an increased energy consumption, but also a signal that the cooling system is operating in emergency mode, trying to reach the set temperatures, but cannot cope with the load.
It is important to understand that continuous operation of the motor can be caused by both trivial operating errors and serious technical breakdowns. Ignoring the problem often leads to failure of the compressor itself, the replacement of which is an expensive procedure. That is why it is necessary to quickly identify the reason why your Atlant stopped turning off and take appropriate measures.
In this article we will analyze in detail the main factors influencing the operating mode of the refrigeration unit. We will look at the mechanical, electrical and operational aspects that can cause a compressor to run continuously. Correct diagnostics at the initial stage will help you save significant money on repairs.
⚠️ Attention: If you smell burning, see sparking or hear an uncharacteristic crackling sound, immediately disconnect the device from the power supply. Continued operation in this condition may result in fire or electric shock.
Circuit leakage and refrigerant leakage
One of the most common reasons why the refrigerator does not turn offis leakage Freon. The refrigerant circulates in a closed circuit, taking heat from the chambers and releasing it into the environment. If a microcrack or damage appears in the system, the gas gradually evaporates, and its pressure becomes insufficient for effective cooling.
In this case, the thermostat “sees” that the temperature in the chamber has not dropped to the set level and does not give a command to turn off the engine. The motor-compressor wears out, trying to compensate for the lack of refrigerant. This is often accompanied by weak cooling or its complete absence, even if the compressor hums continuously.
Leaks can occur in various places: in the foamed part of the housing, in the evaporator (especially if you carelessly damaged it during defrosting) or in places where the tubes are soldered. It is not always possible to visually determine the location of the leak, since freon is colorless and odorless. Accurate diagnosis requires special equipment, such as a leak detector.
- 🔍 Symptoms: Poor cooling, hot side walls (or, conversely, cold condenser tubes), lack of cyclical operation.
- ⏱️ Consequences: Rapid wear of the compressor due to non-stop operation, possible burnout windings.
- 🔧 Solution: Finding the leak, evacuating the system, filling with new freon and installing a new filter-drier.
Is it possible to refill the refrigerator yourself?
Self-filling with freon is highly not recommended without professional equipment. It requires precise knowledge of the type of refrigerant, its quantity, and the presence of a vacuum pump to remove moisture and air from the system. Incorrect refueling will lead to instant failure of the compressor.
Malfunction of the thermostat (thermostat)
The thermostat is the “brain” of the cooling system, which controls the temperature inside the chambers. It is he who gives the signal to turn the compressor on and off. If thermostat fails, its contacts may “stick” in the “on” position. In this state, it constantly sends voltage to the start relay and the compressor, causing the refrigerator to work without interruption.
In models Atlant with mechanical control, the thermostat is a device with a bellows filled with gas or liquid that responds to changes in temperature. Over time, the bellows can lose its seal or become deformed, resulting in incorrect readings. In electronic models, a temperature sensor is responsible for this function, which can also transmit incorrect data to the control module.
You can check the thermostat by removing it from the circuit. If, when the contacts are closed by wires (bypassing the regulator itself), the refrigerator starts working, but when opened, it stops, then the problem is in the regulator. However, such diagnostics should be carried out with caution, observing electrical safety rules.
☑️ Thermostat diagnostics
Replacing the thermostat is a relatively simple procedure, but requires the selection of exactly the same model, since they differ in the temperature range of operation and the length of the capillary tube. Using an unsuitable analogue will lead to incorrect operation of the refrigerator in the future.
Problems with sealing rubber and thermal insulation
Often the reason for continuous operation lies not in the internal components, but in the violation of the tightness of the doorway. Sealing rubber (cuff) over time drying out, cracking or deforming. If the door does not fit tightly, warm air from the room constantly enters the chamber.
The refrigerator tries to cool this incoming warm air, but due to the constant heat inflow, the temperature simply does not have time to drop to the shutdown value. As a result, the compressor works non-stop. This is especially noticeable in the hot season or if the refrigerator is installed next to heating devices.
You can check the tightness in a simple way: clamp a sheet of paper between the door and the body around the entire perimeter. If the paper comes out easily, without resistance, it means that the seal does not fit in this place. It is also worth paying attention to the geometry of the door itself - it could be warped due to wear on the hinges.
| Problem | Symptoms | Remedy method |
|---|---|---|
| Contamination of the seal | Sticky plaque, loose fit | Wash with soapy water |
| Rubber deformation | Cracks, creases, "waves" | Warm up with a hairdryer or replace |
| Warp doors | The gaps are uneven, the door does not hold | Hinge adjustment |
| Hinge wear | Door sagging, creaking | Replacement or lubrication loops |
Malfunctions of the starting relay and compressor
The starting relay is responsible for starting the compressor engine and its operation. If the contacts in the relay burn out or the mechanism breaks down, it may not open the power circuit even when the thermostat asks to stop. In this case, current continues to flow to the motor windings.
The compressor itself can also cause problems. As the piston group reaches the end of its life, it wears out and compression decreases. The engine runs but does not create enough pressure in the system. The thermostat detects a high temperature and does not give a command to stop, although technically the motor is already operating at its maximum capacity.
You can determine a relay malfunction by the characteristic clicks when you try to start or by its appearance (carbon deposits on the contacts). If the problem is in the compressor itself, then often (but not always) this is accompanied by a change in the operating sound - it becomes duller or, conversely, more ringing and metallic.
⚠️ Attention: Replacing the start relay requires precise selection of the model for the specific type of compressor. Installing an unsuitable relay can lead to burnout of the motor windings the first time you turn it on.
The influence of the "Super Freeze" mode and settings
Sometimes users themselves inadvertently switch the refrigerator to constant operation mode. In models Atlant with electronic control or mechanical button, the mode can be activated "Super Freeze". In this mode, the thermostat is forcibly turned off and the compressor operates continuously to quickly freeze a large volume of food.
If you forget to turn off this function after 24-48 hours (depending on the model), the refrigerator will continue to work without interruption. It is also worth checking the position of the temperature regulator. If it is turned to the maximum (usually this value is 6 or 7, or "Max"), the refrigerator will try to achieve extremely low temperatures, which may be impossible in a warm room, and it will work constantly.
In some cases, the cause may be a software failure of the electronic control module. A “frozen” control board may not process signals from temperature sensors, maintaining the compressor in constant mode.
- ❄️ Super Freeze mode: Check whether the snowflake indicator or the corresponding button on the control panel is on.
- 🌡️ Setting the temperature: The optimal position of the regulator is at the middle mark (usually 3 or 4).
- 🔄 Resetting settings: Try to completely turn off the power to the refrigerator for 15-20 minutes to reboot the electronics.
External factors and operating conditions
You should not discount the conditions in which the equipment is operated. If Atlant refrigerator is installed in a niche without gaps for ventilation, close to the wall or next to a gas stove, heat transfer is disrupted. The condenser (black grille at the back or metal walls on the sides) does not have time to release heat, the cooling efficiency drops, and the motor runs longer than usual.
The temperature in the room also affects. If the room is hot (above +30°C), standard refrigeration equipment may not be enough to maintain the desired cycle. The climate class of the device may not correspond to the operating conditions.
Frequently opening doors and loading large quantities of warm products also make the system work harder. However, in this case, continuous operation is usually temporary until the temperature stabilizes.
Frequently asked questions (FAQ)
Why does the new Atlant refrigerator work without interruption on the first day?
When first turned on or after a long defrost, the refrigerator takes time (up to 24 hours) to cool the entire internal volume and products to the set temperature. During this period, operation without shutting down is normal.
Is it possible to operate the refrigerator if it does not turn off?
For a short time - yes, but this leads to overheating of the compressor and increased energy consumption. Long-term operation in this mode reduces the life of the engine and can lead to its combustion. It is necessary to find and eliminate the cause.
How long should the compressor rest between cycles?
In normal mode, the work and rest cycle can be approximately 10-20 minutes of work and 15-30 minutes of rest, but the proportions depend on the load and room temperature. The main thing is the presence of cyclicity.
What to do if, after replacing the thermostat, the refrigerator still does not turn off?
You should check the correct installation of the thermostat, the tightness of the capillary tube to the evaporator, and also exclude freon leakage. Perhaps the thermostat has been selected with the wrong temperature range.