Sudden stoppage of the refrigerator Atlant often becomes an unpleasant surprise, especially when there are perishable products inside. In most cases, the cause of the breakdown is the failure of the start-up relay, which is responsible for starting the compressor engine. Understanding how to properly dismantle this unit will allow you to carry out initial diagnostics or replace the part yourself, saving on calling a technician.
The process of removing the relay does not require complex specialized equipment, but it requires care and compliance with electrical safety rules. Starting device is a critical element of the electrical circuit, and any manipulations with it should be carried out only after the unit is completely disconnected from the network. In this article we will analyze in detail the algorithm of actions, typical errors and methods for checking the serviceability of the component.
Principle of operation and location of the unit
Starting protection relay in refrigerators Atlant is a compact unit mounted directly on the compressor housing. Its main function is to supply voltage to the starting winding of the engine at the moment of start and turn it off after gaining speed. At the same time, the built-in thermal release controls the current strength, protecting the motor from overheating and overloads.
The location of the part is standard for most models: it is located in the lower rear part of the refrigerator. To gain access to it, you need to remove the rear metal cover covering the engine compartment. Inside you will see a black cylindrical compressor tank, to which copper tubes and electrical wires fit.
⚠️ Attention: Before starting any work, be sure to unplug the refrigerator from the outlet. The 220V voltage is dangerous to life, and capacitors can retain charge for some time.
It is important to distinguish between the types of relays installed on different models. compressors. On older models, devices with an external inductor are often found, while modern modifications are equipped with compact plastic housings that combine starting and protective functions in one unit.
Please note that the design of the engine compartment may vary slightly depending on the year of manufacture of the model. If you see additional fasteners or housings, inspect them for hidden screws before removing.
Required Tools for Removal
To successfully complete the task of removing the relay, you will need the minimum set of tools that any DIYer would have in his home. The main requirement for tools is serviceability and safety of use, since the work is carried out in a limited space with fragile elements.
The main tool will be a flat-head screwdriver, which is necessary to release the locking latches of the plastic relay casing. You may also need a Phillips screwdriver if the engine compartment cover or additional fasteners are secured with screws. In some cases, pliers are useful for carefully removing the terminals.
- 🔧 Medium-width flat-head screwdriver for working with latches.
- 🔩 Phillips screwdriver for removing the cover fastening screws.
- 🧤 Dielectric gloves to protect hands and prevent short circuits short circuits.
- 🔦 Flashlight for better illumination of the engine compartment.
It will not be amiss to prepare a multimeter if you plan to check immediately part serviceability. This will avoid having to disassemble the refrigerator again if the problem does not go away after installing the old relay. Also prepare a container for small parts so as not to lose screws or spring clips.
Step-by-step instructions for removing the relay
The process of dismantling the start-up protection relay of the refrigerator Atlant requires sequential operations. First, remove the rear engine compartment cover by unscrewing the mounting screws around the perimeter. After removing the obstacle, inspect the compressor and find the plastic block placed on the contact group protruding from the engine housing.
Carefully press out the relay housing latches using a flat-head screwdriver. Do not use too much force as the plastic becomes brittle over time and may crack. After removing the casing, you will see the internal device with contacts and a coil. Disconnect the wires suitable for the terminals, having previously memorized or photographed the connection diagram.
☑️ Algorithm for removing the relay
The relay itself is removed by gently rocking from side to side. It fits snugly on the three pins of the compressor, so a little force may be required. Do not pull on the wires to avoid breaking the insulation inside. After removal, inspect the part for melting, carbon deposits or mechanical damage.
What to do if the relay cannot be removed?
If the relay is stuck or rusted, do not use brute force. Gently apply a little penetrating lubricant (such as WD-40) to the joint between the plastic and metal, wait 5-10 minutes, then try to loosen the part again. Make sure that the grease does not get on the electrical contacts.
Diagnostics and service check
After you have managed to remove the start-up relay, you need to determine whether it is the cause of the refrigerator malfunction. An external inspection often gives the first clues: the presence of soot, melted plastic or a characteristic burning smell indicates overheating and breakdown. However, there may be no visual signs.
The most accurate result is obtained by checking with a multimeter in resistance measurement mode. Switch the device to ohmmeter mode and test the contacts. The resistance between certain pairs of contacts must correspond to the nominal values specified in the technical documentation, or indicate the continuity of the circuit (usually several ohms).
| Test type | Normal reading | Failure sign |
|---|---|---|
| Starting coil | Low resistance (10-50 Ohm) | Open circuit (infinity) or short circuit (0 Ohm) |
| Thermal relay | Short circuit (0 Ohm) | Open circuit when cold condition |
| Contact | Clean, without soot | Fusing, oxidation, black coating |
| Case | Intact, without cracks | Deformation, traces of overheating |
There is a simple but risky method of testing by ear. If you shake the relay close to your ear, there should be no rattling sound inside. The presence of extraneous noise indicates that the internal contacts or core have come off and are dangling inside the case. In this case, Replacing the relay is mandatory, since such a unit cannot be repaired.
Typical malfunctions and their symptoms
Understanding the symptoms helps to quickly diagnose the problem before removing the cover. Most often, a breakdown of the start-up relay is manifested in the characteristic behavior of the compressor. The unit may try to start, make a click, but immediately stop, after which the cycle is repeated at certain intervals.
Another common symptom is the humming of the motor without switching to operating mode. The engine hums, trying to turn over, but the starting winding does not receive an impulse or does not turn off in time. This leads to rapid heating of the compressor housing and activation of the thermal device, which breaks the circuit.
- 🔊 Frequent clicks in the engine compartment every 10-20 seconds.
- 🔥 Strong heating of the rear wall of the refrigerator in the compressor area.
- 🚫 Lack of cold in the chambers when the fan is running (if any).
- ⚡ Knocking out plugs or circuit breakers in the electrical panel when trying to turn it on.
It is important not to confuse a relay malfunction with more serious problems, such as an interturn short circuit in the windings of the compressor itself or jamming piston group. If after replacing the relay the situation does not change, most likely it itself has failed refrigerator motor, which requires more complex repairs or replacement of the unit.
Replacement of a part and selection of an analogue
When purchasing a new part for replacement, it is extremely important to choose an exact analogue. Relays for refrigerators Atlant are marked with an alphanumeric code (for example, P-1, P-2, P-3, P-4, P-5, P-6), which indicates compatibility with a certain power and type of compressor. Installing an unsuitable part can lead to immediate combustion of a new one or damage to the motor.
Remove the markings from the old relay before going to the store. Pay attention to the voltage (usually 220V) and permissible current. Modern relays are often universal and suitable for a wide range of models, but it is better to double-check compatibility in the manufacturer's catalog or consult with the seller.
⚠️ Attention: Do not use relays from other types of household appliances or homemade bypass circuits. This can lead to a fire or complete failure of the compressor.
Installation of a new element is carried out in the reverse order of removal. Push the relay onto the compressor pins as far as it will go, making sure it is seated snugly and evenly. Connect the wires to the appropriate terminals, observing polarity if indicated. Then replace the protective casing and secure it with clips.
Frequently asked questions (FAQ)
Is it possible to repair the starting relay yourself?
Theoretically, you can try to clean dismountable relays from carbon deposits, but practice shows that this is a temporary measure. The spring and contacts wear out, and after cleaning the device will soon fail again. It is more reliable and safer to replace the device with a new one replacement with a new one device.
Why does a new relay burn out immediately after installation?
This may indicate a malfunction of the compressor itself (jamming, short circuit of the windings) or power surges in the network. The reason may also be incorrect selection of the relay model based on the current characteristics. In such cases, diagnostics of the motor by a specialist is required.
How often do you need to change the relay in the Atlant refrigerator?
The service life of the start-up relay is on average 5-10 years, depending on the intensity of use and the stability of the voltage in the network. Scheduled replacement is not required, repairs are carried out only when a malfunction occurs.
Will a refrigerator work without a relay?
No, it is impossible to start a modern compressor without a starting device. The engine will only hum and heat up until the thermal protection trips or an insulation breakdown occurs. Operation without a relay is strictly prohibited.