For most owners of household appliances, the question of the exact location of the motor can be resolved with one glance at the back panel of the device. Compressor in Atlant refrigerators traditionally located in the lower part of the case, at the back. This is the standard layout for the vast majority of models produced at the Minsk Refrigerator Plant, including the popular two-chamber and single-chamber options. However, visual detection of a black metal tank is only half the battle, since access to it is often difficult due to design features.
In modern lines, such as Atlant XM-4000 or XM-6000, the manufacturer often hides the engine behind decorative plastic cover or metal casing. This is done not only for aesthetics, but also to protect the internal mechanisms from dust and accidental damage. Noise insulation also plays a role: the closed compartment helps reduce the level of noise when the unit is operating. Understanding exactly how the protection is designed is critically important before starting any manipulations.
Do not confuse the main unit with additional elements of the system, such as an evaporator or condenser, which may be visually similar for an unprepared person. The motor-compressor is the heart of the system, and it is always hermetically sealed, has a characteristic “pear” or cylinder shape with tubes coming out of the top. In models with the No Frost system, the compressor may be partially hidden behind the control unit or fan, which requires special care when dismantling the protective panels. Correct identification of the unit is the first step to successful diagnosis.
⚠️ Attention: Before any actions to remove the protective covers, be sure to disconnect the refrigerator from the power supply. Working with live electrical appliances is deadly, even if you just want to see where the motor is.
Design features of the rear panel
The rear wall of the Atlant refrigerator is a complex engineering unit, where each element has its own functional purpose. It is here, in the so-called aggregate compartment, that the main components of the refrigeration circuit are concentrated. Motor-compressor attached to the frame or directly to the bottom of the housing using special shock-absorbing supports. These supports dampen vibrations that occur during operation of the piston group, preventing the transmission of noise to the metal body of the cabinet.
Depending on the year of manufacture and series, access to the technical area may differ. In older models, such as the classic Atlant MHM-1700, the back panel is often an open grille or an easily removable sheet of fiberboard/metal with screws. Here all elements are visible at once. In newer series, for example Atlant 4500 or 5000, a hidden installation system is used, where access is through a hatch or requires removing the entire back cover.
Next to the engine there is always a capacitor (black coil or grid) and a start-protection relay. Start relay it is placed directly on the compressor terminals and is responsible for starting the engine. Its location is a key landmark: by finding a protruding plastic or metal barrel at the motor terminals, you will accurately identify the compressor itself. This is a universal feature for all models of the brand.
Types of arrangement in various models
Despite the general similarity of the design, the engineers of the Minsk plant made changes to the layout in different years. This is due to the introduction of new energy efficiency standards and design changes. In classic two-chamber models with one compressor, it is always one and located at the bottom center or offset to one side (usually to the left, when viewed from the rear).
The situation becomes more complicated in models with two compressors. Such refrigerators, for example series Atlant 6025 or some versions 4000 series, have separate circuits for the refrigerator and freezer compartments. In this case, you will see two black cylindrical tanks at the back. They can be located next to each other or spaced on different sides of the lower part of the body. Each of them has its own starting relay and capacitor.
Models with the system No Frost are characterized by a denser arrangement of elements. Here the compressor can be covered not only by the back cover, but also by the side panels of the niche. Sometimes access requires moving the refrigerator a considerable distance away from the wall, since the gap is minimal. In such cases, it is important not to damage the copper tubes that may come out from the side.
- 🔹 Single compressor models: One motor, located centrally or offset, standard open or closed niche.
- 🔹 Two-compressor models: Two motors, often of different volumes (more powerful for a freezer), located in the lower zone, sometimes asymmetrically.
- 🔹 No Frost models: Reinforced insulation, possible presence of an additional fan in the compressor niche for cooling.
- 🔹 Built-in appliances: The compressor can be displaced due to depth restrictions, access is often only through the bottom plinth or removable panel.
Instructions for accessing the compressor
If you need to get to motor for a visual inspection, cleaning or replacing parts, you must follow a clear sequence of actions. Violation of the dismantling procedure can lead to breakage of plastic fasteners or damage to the tubes. First, make sure that the refrigerator is moved away from the wall at a distance of at least 50-70 cm for comfortable operation.
Carefully inspect the perimeter of the back cover. In models Atlant fastenings are usually represented by self-tapping screws around the perimeter of the sheet. In some cases (especially older models), the sheet may be held in place by latches or guides. If you can only see the top screws, the cover may be slotted into the slots at the bottom and needs to be lifted. Do not use excessive force: the plastic of old refrigerators becomes brittle.
After removing the cover, you will have access to the aggregate zone. Allow the refrigerator to stand unplugged for at least 15-20 minutes before touching any parts. This is necessary to equalize the pressure in the system and discharge the capacitors. Start relay and the capacitor can retain a residual charge.
☑️ Preparation for access
If a plastic protective cover is installed on the compressor (often found in new models to reduce noise), it is usually held on by plastic latches or two or three screws. Remove it carefully so as not to break the latches. Now compressor is fully accessible for diagnostics.
⚠️ Attention: It is strictly forbidden to bend the copper tubes coming out of the compressor at an angle of less than 90 degrees or flatten them with a tool. This will lead to depressurization of the system and leakage of freon, which will require expensive repairs from professionals.
Diagnostics of faults by appearance
Visual inspection of the compressor can provide a lot of information about the condition of the refrigeration unit. In normal operating condition, the motor housing should be warm or hot (depending on the phase of the cycle), but not so hot that it cannot be touched. If you observe local overheating in the terminal area or, conversely, the motor is icy while the refrigerator is running, these are signs of a malfunction.
Pay attention to the state of the starting relay. If traces of melting, soot, or a burning smell are visible on the plastic case, then most likely the problem lies in this unit. Relays Atlant often fail during power surges. Also inspect the condenser: if it is swollen or leaking, it must be replaced.
The presence of oil around the compressor terminals or on the floor under the refrigerator is an alarming signal. This may indicate a violation of the tightness of the motor housing or wear of the seals (although there are no seals in hermetic compressors, oil can escape through the soldering joints of the tubes due to strong vibration or defects). Vibration during operation it should not be excessive; if the compressor “shakes” on its feet, check the condition of the rubber shock absorbers.
| Symptom | Possible cause | Recommended action |
|---|---|---|
| The compressor is hot, but does not start | The starting relay or winding is faulty | Check the relay, ring the windings |
| Strong vibration and noise | Wear shock absorbers or touching the tubes | Replace the rubber feet, bend the tubes |
| Traces of oil on the body | Depressurization or leakage | Urgent call for a technician to find a leak |
| The engine runs non-stop | Freon leak or thermostat failure | Check the system for leaks and sensors |
Why can the compressor turn off after a few seconds?
If the engine is humming 3-5 seconds and clicks, then goes silent - this is the thermal protection triggered. Reasons: a jammed piston, an interturn short circuit or a malfunction of the starting relay, which prevents the shaft from accelerating.
Replacement and safety measures during repair
Replacement compressor in the Atlant refrigerator is a complex technical process that requires special equipment. Unlike replacing the start relay, which can be done at home, replacing the motor itself involves working with coolant. You will need a vacuum pump, a pressure gauge station, a burner and, of course, a new compressor suitable in power and size (for example, Danfoss, Secop or the original Atlant).
The first step is always pumping out the old one coolant and dismantling the old motor. The pipes are cut, the old compressor is unsoldered from the frame (or cut off if the mount is welded, which is rare for Atlants, more often there are threads or bolts). unit, the system must be evacuated. This is the removal of moisture and air from the circuit. If you skip this stage, the remaining moisture will freeze in the capillary tube, forming an ice plug, and the refrigerator will stop freezing. Then the exact amount of freon indicated on the nameplate (usually on the back of the sticker) is charged.
After installing a new unit, the system must be evacuated. This is the removal of moisture and air from the circuit. If you skip this step, the remaining moisture will freeze in the capillary tube, forming an ice plug, and the refrigerator will stop freezing. Then the exact amount of freon indicated on the nameplate (usually on the back of the sticker) is charged.
⚠️ Attention: Independent soldering and refilling with freon without a license and equipment is prohibited and dangerous. Freon forms toxic compounds when in contact with an open fire. Entrust the replacement of the compressor to certified specialists.
Frequently asked questions (FAQ)
Is it possible to replace an Atlant compressor with an analogue from another manufacturer?
Yes, often original compressors Atlant are replaced with ones of similar power and dimensions from Danfoss (Secop), LG or Aspera. The main thing is the matching of power (usually 1/4 or 1/5 hp), type of refrigerant (R134a or R600a) and mounting dimensions. It is also important to choose the correct starting relay for the new motor.
Why is the compressor hot, but the refrigerator does not freeze?
This is a classic sign of a freon leak. The compressor is trying to pump gas, but there is not enough gas in the system, so it runs idle and overheats. The second reason is a clogged capillary tube. In both cases, you need to call a technician to find a leak or clean the system.
How can you tell if the start relay is faulty and not the compressor itself?
If you hear a click when you turn it on, a buzzing sound lasts 3-10 seconds, then there is a click and silence (and so on in a cycle) - most likely, the problem is in the relay or the compressor is jammed. If you remove the relay and shake it, you can hear the sound of broken internals. Change it? relay. If the relay is intact, but the motor does not start, there is a high probability of an interturn short circuit in the motor windings.
Where is the compressor located in a two-chamber refrigerator with one motor?
Even if the refrigerator has two chambers, but one motor, it is located in a standard location - at the bottom at the back. One compressor serves both circuits (through one or two. capillary). Such models often use a “crying” evaporator system in the refrigeration chamber and static or No Frost in the freezer.