Refrigeration equipment Atlant is deservedly popular due to its reliability and affordable price, but even time-tested equipment sometimes requires intervention. One of the most common malfunctions that owners encounter is the failure of the starting or protective relay. This small part is responsible for starting the compressor and protecting the engine from overloads, so if it breaks down, the refrigerator stops cooling or starts working intermittently. Understanding how to remove the Atlant refrigerator relay is the first and most important step for self-diagnosis and repair.
Symptoms of a malfunction often appear suddenly: the motor hums but does not start, or a characteristic click is heard, followed by silence. In some cases, the compressor may become hotter than usual and then the thermal protection will trip. If you notice such signs, do not rush to call a technician, since replacing this part is a process that can be completed independently if you have a minimum set of tools and basic knowledge about the design of electrical appliances. It is important to act carefully so as not to damage the compressor tubes and electrical contacts.
In this article we will analyze in detail the algorithm of actions necessary to dismantle and check the starting and protective relay on various models of refrigerators Atlant. You will learn how to properly prepare for work, what tools you will need, and what to look for when visually inspecting removed components. We will also touch on safety issues, because working with electrical components requires compliance with certain rules, ignoring which can lead to equipment breakdown or injury.
Preparation for repairs and the necessary tools
Before proceeding with the direct removal of the relay, it is necessary to ensure safe working conditions. The most important rule is to completely turn off the power to the refrigerator. Remove the plug from the socket and make sure that access to the rear wall of the unit is clear. For comfortable work, it is best to move the refrigerator away from the wall at a sufficient distance so that you can move freely around it and have a good view of the compressor compartment. Do not neglect this stage, since accidentally turning on the device while working with wiring is unacceptable.
To complete the task, you will need a minimum set of tools, which can be found in the arsenal of most home craftsmen. The main tool will be a flathead and Phillips screwdriver, necessary to remove the protective casing and, possibly, loosen the clamps. You may also need pliers or side cutters to work with wires if you need to strip contacts, and a multimeter to subsequently check the continuity of the circuit. If you don't have a multimeter, visual inspection is the main method of diagnosis, but it is less accurate.
⚠️ Attention: If there are traces of oil visible on the back wall or a burning smell, this may indicate a more serious problem with the compressor, not just the relay. In such cases, self-repair may be ineffective.
Prepare the workplace: cover the floor next to the refrigerator with cloth or cardboard so that fallen small parts do not get lost and scratch the coating. Determine in advance a place to put screws and removed casing elements so that you don’t waste time searching for them during the assembly process. Good lighting of the compressor area will also play an important role, since in the depths of the niche it is often dark, and it is important to clearly see the markings of the wires and the state of the contacts.
☑️ Preparation for removing the relay
Access to the compressor and removal of the casing
The compressor in refrigerators Atlant is located in the lower rear part of the case and is usually covered with a metal or plastic casing. This casing protects the engine from dust, moisture and mechanical damage, and also reduces the noise level during operation. To remove the relay, the first step is to dismantle this protection. The fastening of the casing may vary depending on the model: in some cases it is held on by screws, in others - by latches or clamps.
If the casing is secured with screws, carefully unscrew them with an appropriate screwdriver. Be careful: sometimes the screws may be hidden under decorative plugs or rubber pads. If you use a latch system, be careful not to use too much force to avoid breaking the plastic. Simply press lightly on the latches and pull the casing down or to the side. In some older models, the casing may be welded or glued, which will require careful cutting or bending the edges, but most modern Atlantov have a removable option.
After removing the casing, you will see a view of the compressor - a black “tank” with copper tubes and electrical part. It is on the side or bottom side of the compressor (depending on the orientation) that the required relay is located. It is a plastic box placed on three pins protruding from the compressor housing. Before touching the parts with your hands, it is recommended to once again visually verify that there is no condensation or moisture in the niche.
Types of relays in Atlant refrigerators
In brand refrigeration equipment Atlant two types of starting relays are most often used: posistor and induction. Understanding the differences between them is important not only for diagnosis, but also for proper removal and installation of a new part. Posistor relays (RT, R-1, R-2 series) are considered more modern and reliable; they do not have moving contacts inside the starting circuit, which reduces the likelihood of sparking and sticking.
Induction relays (R-600, RKT series) operate on the principle of electromagnetic contact closure. Inside such a device there is a coil and a movable core, which, when current is supplied, closes the starting winding. Over time, the contacts may burn out and the spring may lose its elasticity, making it impossible to start the compressor. Visually, these relays often differ in the shape of the case and the number of contacts, although outwardly they may appear similar.
In addition to the starting relay, a thermal protective relay often works in conjunction with it. It is a tablet with a bimetallic plate that opens the circuit when the compressor overheats. In some models, these two elements are combined into one housing, in others they are separate units. When removing, it is important not to confuse their purpose and position, since incorrect installation of thermal protection can lead to motor combustion.
| Relay type | Principle of operation | Frequent malfunctions | Series for Atlant |
|---|---|---|---|
| Posistor | Change in resistance when heated | Destruction of the posistor, open circuit | RT, R-1, R-2 |
| Induction | Electromagnetic short circuit | Burning of contacts, sticking | R-600, RKT |
| Thermal | Opening during overheating | False activation, not triggered | T-1, T-2, T-6 |
| Combined | Start + protection in one case | Failure of one of the elements | RTK, RTK-X |
The process of removing the relay from the compressor
The process of removing the relay itself does not require complex manipulations, but requires caution and attentiveness. The relay is placed on the compressor terminals and is secured either by a tight fit or by an additional metal clamp or strip. If you see a metal bracket covering the relay body, you need to carefully bend it or unscrew the screw holding it. Do not use force so as not to break the plastic mounting ears.
After removing the fixing element, the relay must be removed from the contact pins. This should be done with rocking movements from side to side, carefully pulling the part up or to the side. Strictly prohibited pull the wires suitable for the relay, as this can lead to a break in the wiring inside the insulation or damage to the contacts on the compressor itself. If the relay is difficult to remove, you can slightly help yourself with a flat screwdriver by prying up the housing at the base, but without touching the electrical terminals.
After the relay is removed from the compressor terminals, it is necessary to disconnect the wires going to the capacitor and the power cord. The wires can be connected through terminal blocks or twisted and insulated. If terminals are used, they can simply be loosened with pliers. If you find twists, you need to carefully unwind them, first marking which wire went where. Often color coding helps, but it’s better to be on the safe side.
⚠️ Attention: When removing the relay, make sure that nothing gets inside the compressor dust or moisture. The compressor terminal holes must remain covered with the relay housing or a clean cloth until a new part is installed.
Diagnostics and checking of the removed element
After successful dismantling of the relay, it must be carefully inspected and checked. A visual inspection often allows you to immediately identify the problem: blackened plastic, melted contacts or traces of soot inside the case indicate a short circuit or overload. If the relay housing is swollen or cracked, its operation is impossible and requires mandatory replacement. Also pay attention to the condition of the posistor (if it is visible) - it should not crumble or have traces of burning.
For more accurate diagnostics, use a multimeter, switching it to the continuity or resistance measurement mode. Check the integrity of the windings and contacts. In a cold state, the resistance of the posistor should be low (tens of ohms), and when heated, it should go to infinity. Induction relays are tested for contact closure: in a vertical position the contacts must close, and in a horizontal position they must open (depending on the design). If the device shows an open where there should be a circuit, or a short circuit, the relay is faulty.
Pay special attention to the thermal relay if it was removed separately or is part of the structure. His contacts should ring when cold. If the multimeter immediately shows infinite resistance, it means that the thermal protection has tripped and does not return to its original state, or the bimetallic strip itself has burned out. Such a relay will not pass current to the compressor, and the refrigerator will not start.
What will happen if you install a faulty relay?
Installing a faulty relay can lead to repeated breakdown, overheating of the compressor and even fire of the wiring. If you doubt the serviceability of the removed part, it is better to replace it with a new one, since the cost of the relay is not comparable to the price of a new compressor.
Installing a new relay and assembling the system
The relay is replaced in the reverse order of removal. First, connect the wires to the corresponding terminals of the new device, making sure that the contact is tight. Then place the relay on the compressor terminals. Orientation is important here: relay and compressor housings often have markings (such as an "UP" or "UP" arrow) to indicate the correct position. Incorrect installation may result in the contacts not closing or the thermal protection not fitting tightly to the motor housing.
After seating on the pins, secure the relay with a metal strip or clamp, if provided by the design. Make sure nothing is loose or vibrating. Then you can proceed to assembling the protective casing. Put it back in place, secure it with screws or snap it into place. Check that all tubes and wires are laid neatly and do not touch the hot parts of the compressor or moving elements (although there are no moving external parts in the compressor, vibration can wear out the insulation over time).
The final stage is to turn on the refrigerator to the network. During the first minutes of operation, listen carefully to the startup sound. The compressor should start working with a characteristic hum, which after a few seconds turns into a smooth hum. If you hear a click, a hum, and then a click again (the motor does not start), immediately unplug the device. This is a signal that the problem has not been solved, and perhaps the compressor or condenser itself is faulty.
Is it possible to remove the relay without disconnecting the refrigerator from network?
Absolutely not! Any work on the electrical components of the refrigerator should be carried out only after the appliance has been completely disconnected from the power supply. Otherwise, there is a high risk of electric shock or short circuit.
Why does a relay often burn out?
Frequent causes of relay failure: power surges in the network, compressor wear (increased starting current), poor contact in the wiring or natural aging of materials. Frequent turning on and off of the refrigerator also affects.
Where to buy a relay for the Atlant refrigerator?
Original and compatible relays can be purchased in specialized stores of spare parts for household appliances, on radio markets or ordered in online stores. It is important to know the exact model of the refrigerator or the marking of the old relay.
Is it necessary to replace the capacitor along with the relay?
If the capacitor is swollen, leaking or damaged, its replacement is required. If it looks intact, it is not necessary to change it preventively, but it is recommended to check its capacity with a multimeter.