Have you opened the refrigerator Atlant, but it’s warm in the refrigerator compartment, the food is spoiling, but the freezer is working as usual? This problem is more common than it seems. Two-chamber models Atlant (series MHM, NM, HM) are built on the same principle: separate cooling circuits for each chamber or a single system with cold distribution. If the refrigerator compartment has stopped freezingand the freezer is functioning, either mechanical faults or an electronics failure are to blame. In 70% of cases, the problem can be fixed on your own without resorting to expensive repairs.
In this article we will examine all possible reasonsthe reasons why the refrigerator compartment in a two-chamber one does not work Atlant —from banal freezing of the fan to breakdown of the control board. You will learn how to diagnose without tools, when to call a technician, and how much repairs will cost. And also - a unique algorithm for checking the thermostat, which is not described in official instructions Atlant.
1. Why does the refrigerator compartment not work, but the freezer freezes?
In two-chamber refrigerators Atlant one of two cooling systems is used:
- 🔄 Single-circuit system (one tube with freon for both chambers) - typical for models Atlant XM 4021-000, MKhM 1708-80. The cold is distributed through magnetic valve or damper.
- ❄️ Double-circuit system (separate evaporators for each chamber) - found in new series, for example Atlant NM 6204-100. Each chamber has its own thermostat and sensors.
If the freezer works but the refrigerator does not, the problem lies in one of three components:
- Blocking the cold supply (faulty valve, damper or fan).
- Failure of sensors/thermostat (the refrigerator compartment “does not see” that it needs to be cooled).
- Freon leak in the circuit of the refrigerator compartment (only for dual-circuit models).
In single-circuit models the freezer will work even if the refrigeration chamber breaks downbecause the valve is by default open to the freezer compartment. In double-circuit ones, the chambers are completely independent, and the failure of one does not affect the other.
2. TOP-5 reasons why the refrigerator compartment does not freeze
Let's start with the most common breakdowns that can be diagnosed without disassembling the refrigerator.
| Cause | Symptoms | Can it be eliminated on your own? |
|---|---|---|
| Fan freezing | Noise during operation, then silence. There is ice on the back wall in the freezer. | Yes (defrosting) |
| Thermostat is faulty | The compressor does not turn on, the light inside is on. | Partially (check with a multimeter) |
| The damper does not open | The freezer is working, the refrigerator compartment is warm. A click is heard when the door is opened. | Sometimes (cleaning, replacing the motor) |
| Freon leakage | The compressor runs without stopping, the condenser is cold. | No (required refueling) |
| Control board | Chaotic on/off, errors on the display. | No (diagnostics in the service) |
If your Atlant refers to series MHM or HM (with mechanical control), in 90% of cases the fault is thermostat or damper. In models with electronic control (NM, NRM) more often breaks temperature sensor or board.
3. How to check the thermostat (thermostat) in the Atlant refrigerator
The thermostat is the “brain” of the refrigeration chamber. It measures the temperature and sends a signal to the compressor to turn on/off. If the thermostat is broken, the compressor does not receive the command to cool the refrigerator compartment (but the freezer works, since it has a separate sensor or valve).
Signs of a faulty thermostat:
- 🔴 The compressor does not turn on at all (the refrigerator is silent).
- 🟡 The compressor works without stops (the thermostat does not turn it off).
- 🔄 The temperature in the chamber does not correspond to the set one (for example, it is set to +5°C, but actually +15°C).
How to check the thermostat with a multimeter:
- Disconnect the refrigerator from the mains.
- Remove the thermostat protective cover (usually located inside the chamber, under the plastic panel).
- Disconnect the wires from the thermostat (take a photo of their location!).
- Switch the multimeter to resistance test mode (200 Ohms).
- Attach the probes to contacts
3and4(usually they are signed). - Turn the thermostat knob:
- In position
0(off) there should be resistance infinite (open circuit). - In position
1-7the resistance should be 0 Ohm (closed).
- In position
If the device shows a break in any position or the resistance does not change, the thermostat is faulty. Replacement cost: from 1,200 to 2,500 rubles (depending on the model Atlant).
Where buy a thermostat for Atlanta?
Original thermostats for Atlant are sold in branded service centers or on spare parts websites (for example, termostat-atlant.ru, zapchasti-by.ruThe thermostat is suitable for models MHM 1708 Thermostat fits K-59, for XM 4021 - TAM-133Always check the markings with the old part!
4. The damper between the chambers: why it does not open and how to fix it
In refrigerators Atlant with a system No Frost (for example, NM 6204-100) enters the fridge compartment through damper —a plastic or metal door that opens at the command of a sensor. If the damper is stuck in the closed position, the refrigerator compartment will stop cooling, and the freezer will work normally.
Causes of jamming dampers:
- ❄️ Freezing due to a faulty defrost heater (in models with No Frost).
- 🔧 Breakage of the drive motor (clicks are heard when trying to open).
- 🧊 Mechanical blocking by ice or a foreign object.
How to check the damper:
- Unplug the refrigerator.
- Remove all food from the freezer and refrigerator.
- Remove the back panel in the freezer compartment (unscrew the screws).
- Find the damper - it is located in the upper part behind the back wall.
- Try to open it manually (carefully, do not break the plastic!) If it does not move, the problem is freezing or a broken motor.
If the damper is frozen:
- Defrost the refrigerator for 12-24 hours (doors open, plug removed).
- After defrosting, check whether the damper opens when turned on.
- If the problem persists, it is faulty defrost heater (needs replacement).
Listen to clicks when opening the door|Try to defrost the refrigerator|Check the ice damper|Test the motor (if there is access)|Call a technician in case of mechanical failure-->
5. Problems with the fan: why it doesn’t spin
The fan in refrigerators Atlant s No Frost is responsible for circulating cold air between the chambers. If it stops working, the refrigerator compartment does not receive cold, and the freezer continues to freeze (since it stops working). the compressor pumps freon).
Signs of a faulty fan:
- 🔇 The refrigerator has become quieter (no characteristic buzzing).
- ❄️ Ice builds up in the freezer the back wall (the fan does not blow, the moisture does not evaporate).
- 🌡️ The temperature in the refrigerator compartment rises, in the freezer it is normal.
How to check the fan:
- Unplug the refrigerator.
- Remove the back panel in the freezer.
- Find the fan - it looks like a small turbine with blades.
- Try to turn the blades by hand. If they do not spin, the problem is in the bearing or freezing.
- Connect the refrigerator to the power supply and listen: if the fan does not start, but voltage is supplied to it (checked with a multimeter), the motor has burned out.
If the fan is frozen:
- Defrost the refrigerator for 24 hours.
- Check operation defrost heater (should turn on every 8-12 hours).
- If ice builds up again, replace the heater or defrost sensor.
6. Freon leak: how to recognize and what to do
Refrigerant (freon) leak is one of the most serious breakdowns in double-circuit refrigerators Atlant (for example, NM 6204-100) freon can only leak from the refrigeration chamber circuit, the mientras freezer will continue to work. In single-circuit models, a leak usually leads to a complete stop of cooling, but there are exceptions.
Signs of a leak. freon:
- 🔄 The compressor works without stopping, but the refrigerator compartment does not cool.
- 🧊 The condenser (grid at the back of the refrigerator) is cold (normally it should be warm).
- 💨 Frost may appear on the food in the freezer (due to changes pressure in the system).
What to do:
Freon leak impossible to fix on your own requires special equipment for evacuation and refilling. Average repair cost:
- Diagnostics of the leak: 1,000–1,500 rubles.
- Refilling with freon: 2,500–4,000 rubles (depending on the model).
- Replacing the filter drier: +1,000–1,500 rubles.
If the refrigerator is under warranty — do not try to repair it yourself. Freon leakage often occurs due to mechanical damage to the circuit (for example, when moving the refrigerator). In this case, repairs may be free.
7. Failure of the control board: symptoms and solutions
In modern models Atlant (series NM, NRM), the electronic control board is responsible for the distribution of cold. If it fails, the refrigerator compartment may stop cooling, even if the freezer is working. the board breaks down due to power surges or moisture.
Signs of a faulty board:
- 📛 Errors appear on the display (for example,
E1,E2,E4). - 🔄 The refrigerator turns on and immediately turns off (cyclically).
- 🎛️ Does not respond to button presses or temperature changes.
- 💡 The light inside is on, but the compressor does not start.
What to do:
- Disconnect the refrigerator from the network for 10-15 minutes (sometimes resetting helps).
- Check the voltage in the outlet (should be 220-230 V).
- If the board is clearly burned out (darkened tracks, smell burnt) - replacement is required.
The cost of a new board for Atlant: from 3,000 to 6,000 rubles (depending on the model). Important: after replacement, the board must be flashed for a specific refrigerator model.
⚠️ Attention: If the refrigerator is connected through a surge protector or stabilizer, but the board is still burned out, check the grounding of the outlet. In 30% of cases, the cause is unstable voltage in the house.
8. compressor
If all of the above reasons do not apply, check:
1. The door is not tightly closed
- 🚪 Check the sealing rubber - if it is torn or deformed, warm air enters the chamber.
- 🧲 Carry out a test with a sheet of paper: clamp it with the door. If the sheet falls out, the seal needs to be replaced.
2. Condenser contamination
- 🧹 Dust on the rear grille impairs heat transfer. Clean it with a soft brush.
- 🌡️ If the condenser is hot and the compressor does not turn on, overheating is possible.
3. Compressor malfunction
- 🔧 In two-compressor models (Atlant MHM 2835-80), the refrigeration compressor may burn out cameras.
- 🎤 Signs: the compressor hums, but does not start, or turns on for 1-2 seconds and turns off.
4. Malfunction of the temperature sensor
- 📉 The sensor may show incorrect data, and the control board does not give a command to cool.
- 🔧 Checked with a multimeter (the resistance should change as the temperature changes).
FAQ: Frequently asked questions about a non-working refrigerator
❓ The Atlant refrigerator does not freeze, but the freezer works. What to do first. turn?
1. Check if the refrigerator door is closed (perhaps the product or seal is in the way).
2. Unplug the refrigerator for 10 minutes, then turn it on again (reset the electronics).
3. If that doesn’t help, defrost the refrigerator for 12-24 hours (possibly, the fan or damper is frozen).
4. Listen to whether the fan in the freezer is working (you should hear a buzzing sound).
❓ How to understand that the thermostat is broken and not the control board?
If yours mechanical thermostat (adjustment knob with numbers):
- Turn the knob - if there is no click (contact closure), the thermostat is faulty.
- Check the contacts with a multimeter
3i4(should be 0 Ohm in position1-7).
If you have electronic control:
- Errors may appear on the display (for example,
E1- a problem with sensor). - The board usually breaks after power surges (check the socket).
❓ How much does it cost to repair an Atlant refrigerator if the refrigerator compartment does not work?
The cost depends on the cause:
| Breakage | Repair cost (rub.) |
|---|---|
| Replacing the thermostat | 1 200–2 500 |
| Repairing the damper/fan | 1 500–3 000 |
| Refilling freon | 2 500–4 000 |
| Replacement of the control board | 3 000–6 000 |
| Repair of the compressor | 4 000–7 000 |
Prices do not include the technician’s visit (300–800 rubles). In regions, the cost may differ by 15–20%.
❓ Is it possible to fill freon into the Atlant refrigerator yourself?
No. To refill freon, you need:
- A vacuum pump (to pump air out of the system).
- A manometric manifold (to control pressure).
- A cylinder with freon (for Atlant usually used
R-134aorR-600a). - Experience in working with refrigeration equipment (an error during refueling can lead to a repeated leak).
Self-refueling without equipment will lead to repeated breakdown within 1–2 months.
❓ How often do you need to defrost the Atlant refrigerator with No Frost?
Refrigerators Atlant with the system No Frost do not require regular defrosting, but:
- Recommended defrost 1-2 times a year to prevent fan freezing.
- If ice builds up on the back wall of the freezer - defrost immediately (this is a sign of a defrost malfunction).
- After defrosting, wipe the seals and check the operation of the damper.