A sudden breakdown of the refrigerator is always an unpleasant surprise, especially if there are food supplies inside. Most often, the cause of failure is compressorwhich in everyday life is often simply called the motor. If you hear that the unit is humming, but not cooling, or is completely silent, most likely it’s time to replace the main unit of the system.
Owners of Belarusian-made equipment often wonder where to find a reliable and original spare part. The market is overflowing with offers, but not all sellers can guarantee the quality and compliance of the characteristics. Our article will help you figure out what your model needs, how to distinguish a quality product from a counterfeit, and where it is most profitable to make a purchase. which motor exactly your model needs, how to distinguish a quality product from a counterfeit one, and where is the best place to make a purchase.
Before you go shopping, you need to carry out an accurate diagnosis. An error in choosing a model can lead to repeated repairs or even failure of all wiring. We will look at the technical nuances in detail so that you can be confident in the correctness of your choice.
How to determine the compressor model to replace
The first step to successful repair is identifying the failed unit. On the housing of each compressor, regardless of the manufacturer, there is a nameplate with technical information. You will need to find a sticker, which is usually located on the side or top of the black barrel. It is the marking on this sticker that is the key to finding a replacement.
Please note that refrigerators Atlant were equipped with different types of engines. Older models often used compressors from the brand itself, while in newer lines you can find units from Secop (formerly Danfoss) or Embraco. It is important not to confuse them, as they may differ in seating and electrical parameters.
For an accurate determination, you will need to remove the rear protective panel of the refrigerator. A visual inspection will allow you to read the model code. Write it down completely, including all letters and numbers. This will save you from buying the wrong part.
⚠️ Attention: Do not try to select a motor only based on the displacement of the refrigerator compartment. Two refrigerators of the same volume can be equipped with compressors of completely different power, depending on the year of manufacture and series.
- 🔍 Remove the back cover and take a photo of the nameplate in good lighting.
- 📝 Rewrite the model code, supply voltage and type refrigerant (R134a or R600a).
- ⚡ Check the number of contacts on the start-up relay.
- 📏 Measure the overall dimensions if you plan to install in a limited space.
If the sticker is worn off or missing, you can determine the model by the catalog number of the sticker itself refrigerator, which is indicated in the device passport or on the internal sticker on the chamber wall. Knowing the exact model of the refrigerator, for example Atlant MXM 1704, you can select a compatible compressor through cross-catalogs of manufacturers.
Types of compressors: original or analogue?
When choosing a spare part, the buyer faces dilemma: look for a strictly original engine or consider proven analogues. Original compressors Atlant (often labeled as "Atlant" or have a code starting with specific series) are created specifically for these refrigerators. Their geometric dimensions and mounting points perfectly match the factory ones.
However, finding a new original motor is becoming increasingly difficult. Production of some series has been stopped, and only refurbished versions remain in warehouses. In this case, many craftsmen recommend paying attention to the brands Secop and Embraco. These world leaders produce units that are often OEM suppliers to assembly plants.
Chinese analogues are cheaper, but require careful testing. The quality of metal, winding and assembly may vary. If you want the refrigerator to last another 5-7 years, it is better not to save on the main unit.
It is worth noting that modern inverter models require a special approach. If you have a refrigerator with a No Frost system and inverter control, finding a replacement becomes more difficult. Here rotation speed the shaft is regulated electronically, and a conventional linear compressor may not work without resoldering the entire control system.
Where is the best place to buy: review of sales channels
The question “where to buy” has several answers, each of which has its own pros and cons. The market for spare parts for household appliances is segmented, and the choice of purchase channel depends on what is more important to you: price, speed or warranty.
Specialized online spare parts stores offer the widest range. Here you can find rare models and get advice from a technologist. However, delivery may take time, and returning goods in the event of an error in selection is sometimes associated with bureaucratic difficulties.
Official service centers of the brand are the most reliable, but often the most expensive way. By purchasing a motor from an official, you receive a guarantee of compatibility and quality. In addition, many service centers offer an installation service, which relieves you of responsibility for installation.
| Type of seller | Price | Warranty | Speed of receipt |
|---|---|---|---|
| Official service center | High | 12 months | 1-3 days |
| Large online store | Medium | 6 months | 2-5 days |
| Spare parts market | Low | 14 days (check) | Instantly |
| Bulletin boards (used) | Very low | No | Depends on the seller |
Buying a used compressor on message boards is a lottery. The service life of such an engine is unknown, and it can only work for a couple of months. This option should only be used as a temporary solution or if the budget is extremely limited, and the risk of losing products does not scare you.
Why should you not buy motors without packaging?
Compressors sold “by weight” or in crumpled containers without original packaging are often refurbished in an artisanal way. Inside such a unit there may be moisture or wear products that will quickly damage the system.
Technical characteristics and compatibility
When selecting an analogue, it is critical to take into account not only the mounting dimensions, but also the technical parameters. The compressor power must match the heat flow of the refrigeration chamber. If you install a motor that is too weak, it will work non-stop, trying to gain temperature, which will lead to its rapid combustion.
The type of refrigerant is another important parameter. Old models ran on freon, modern ones ran on freon or isobutane. The oils used in compressors for different types of freon have different chemical bases and do not mix. An attempt to fill the system with the wrong freon or use a compressor for a different type of gas is doomed to failure. R12, modern - on R134a or isobutane R600a. The oils used in compressors for different types of freon have different chemical bases and do not mix. An attempt to fill the system with the wrong freon or use a compressor for a different type of gas is doomed to failure.
Also pay attention to the capacity in cubic centimeters (cm³). A slight upward deviation is allowed (up to 10-15%), but not a smaller one. For example, instead of 12 cm³, you can put 14 cm³, but not 10 cm³.
⚠️ Attention: Manufacturers often change the design of the tubes (copper or steel) and their diameter. When purchasing, be sure to check the location and type of tubes so that you do not have to deal with complex soldering of adapters.
- 🌡️ Check the climate class: for unheated rooms you need SN-T class motors.
- 🔌 Make sure that the voltage matches your network (usually 220-240V).
- 🔊 Pay attention to the noise level if the refrigerator is in the kitchen-living room.
Do not forget about the start-up relay. In some cases, it comes complete with a new compressor, but more often it needs to be purchased separately or replaced from the old engine, if it is in good condition and fits the specifications.
Price range and influencing factors
The cost of a compressor for a refrigerator Atlant can vary widely. The price is influenced by many factors: manufacturer’s brand, country of origin, power and warranty. On average, the budget segment starts at a cost comparable to half the price of a new inexpensive refrigerator.
Original Belarusian motors are usually in the middle price category. European brands, such as Secop (production may be in China, Serbia or Denmark), will cost more, but their service life is longer. Cheap Chinese copies are attractive due to their low price, but the risk of repeated failure is much higher.
The method of purchase also affects the final amount. At a convenience store, the price will be higher due to rent and logistics. Online platforms allow you to save money, but require you to wait for delivery. Bulk purchases or purchasing as part of a repair kit (compressor + filter + relay) can reduce costs.
Don't forget about hidden costs. Even if you are planning a DIY repair, you will need tools: a torch, solder, flux, a vacuum pump and a pressure gauge station. The purchase of this equipment may cost more than the compressor itself, so for a one-time promotion it is often more profitable to call a specialist with your equipment.
Installation and startup instructions
Replacing a motor is a complex technical process that requires skills in working with refrigeration equipment. A simple mechanical replacement “bolt for bolt” will not work here, since the system is sealed and filled with refrigerant under pressure.
The first stage is always the evacuation of freon. Simply releasing gas into the atmosphere is a violation of environmental standards and a loss of working fluid. Then follows the dismantling of the old compressor. The pipes are cut, the engine is unscrewed from the frame. It is important not to damage the system pipelines going to the condenser and evaporator.
After installing a new motor, it is necessary to solder the connections. It is critical to use a nitrogen purge here to ensure that scale does not form inside the tubes and clog the capillary tube. This is a common mistake of beginners, leading to repairs.
☑️ Checklist before the first start
The final stage is evacuation and charging. The vacuum pump removes moisture and air from the circuit. The remaining moisture will turn into ice in the capillary and block circulation. Refilling is carried out strictly according to the weight indicated on the refrigerator nameplate, using electronic scales.
Common mistakes when purchasing and installing
The most common mistake is buying a compressor “by eye”. Visually, the motors may be similar, but differ in the height of the legs or the diameter of the tubes. This leads to the need to bend the frame or resolder connections, which reduces reliability.
The second mistake is ignoring the replacement of the filter drier. This small copper cylinder collects moisture and dirt. When the circuit is opened, it is saturated with moisture from the air in a matter of minutes. Installing an old filter or working without it is guaranteed to lead to the formation of an ice plug or acid in the system.
The third mistake is insufficient vacuuming. Many people think that it is enough to “pump” the pump for a couple of minutes. In fact, it takes time and a deep vacuum to remove moisture from hard-to-reach places in the evaporator.
Is it possible to install a compressor of greater power?
Theoretically, it is possible if it is suitable in size and type of freon. However, this will lead to the fact that the refrigerator will turn off before it has time to reach the temperature, or, conversely, work with overload. The thermostat may incorrectly turn off the motor, which will lead to defrosting of food or breakdown of the thermostat itself.
Is work guaranteed during self-installation?
Most stores provide a guarantee on the compressor only if installed by a certified specialist with a certificate of work performed. If you install it yourself, you risk being left with a non-working part and without the possibility of a refund.
Is it worth repairing an old compressor?
Repairing a hermetic compressor (rewinding, replacing valves) at home is impossible, and in workshops it is often not economically feasible. The cost of work and spare parts often approaches the price of a new unit, and the service life of a rebuilt engine is difficult to predict.
How long is a new compressor stored?
The shelf life of a new compressor in original packaging is usually several years. The main condition is to store it in a dry place and not open the plugs on the tubes until installation. If the plugs are removed, moisture gets inside, and the motor requires careful drying before use.
Is it necessary to change the oil in a new compressor?
No, new compressors are already filled with the required amount of oil at the factory. It is necessary to add or change the oil only in specific cases of repair, when the system has been open for a long time, but this is a task for professionals who know the type of compatible oil (mineral or synthetic).