Sudden stop of a two-chamber refrigerator Atlant —a situation which can take any home cook by surprise. The food begins to spoil, and silence reigns in the room, broken only by the defrosting ice. Often the cause of a breakdown is not the expensive compressor itself, but its small but critical part - the start relay. It is this element that is responsible for starting the engine and protecting it from network overloads. Independent replacement This spare part allows you to save a significant amount on calling a technician if you have basic skills in handling tools.
Before you begin disassembly, you need to make sure that the problem lies in the relay, and not in the lack of electricity or a broken wire. A characteristic sign of a malfunction is clicks coming from behind the unit and short-term attempts to start the engine, which immediately stop. If you hear a hum that lasts a couple of seconds, followed by silence and a click, this is a sure sign that it is out of order. In this article we will analyze in detail the process of diagnosing and replacing relays for popular models trigger mechanism out of order. In this article we will analyze in detail the process of diagnosing and replacing relays for popular models Atlant with two cameras.
It is important to understand that working with electrical appliances requires compliance with basic safety rules. Although 220 volts is dangerous, with the right approach the risk is minimized. The main thing is to never start work while the power cord is plugged into the outlet. It is also worth preparing a workplace with good lighting, since the back of the refrigerator is often hidden in a niche or corner, where it is difficult to see small parts of the fasteners.
Diagnostics of the fault and signs of breakdown
The first step in any repair is an accurate diagnosis. Refrigerators Atlant are known for their reliability, but the start relay is a consumable item that wears out over time. If your unit has stopped freezing and the light inside is on, this already narrows your search. It is necessary to move the refrigerator away from the wall and gain access to the compressor, which is usually located in the lower rear part of the case.
Pay attention to the behavior of the motor when turned on. If you hear a hum, which ends abruptly with a click, and repeats cyclically, it means that the motor windings are receiving power, but the rotor cannot be started. At this moment thermal protection triggered, turning off the power to prevent the windings from burning out. This is a classic picture of a faulty starter.
Visual inspection can also provide a lot of information. If traces of burning, melted plastic are visible on the relay body, or the smell of burnt insulation is felt, the diagnosis is obvious. Sometimes the problem lies in oxidized contacts, which no longer conduct the required current. In such cases, even an internally serviceable mechanism may not perform its function due to a poor connection with the wires.
⚠️ Attention: If, after removing the relay, you see that the contacts on the compressor itself (three pins) are blackened or melted, simply replacing the relay may not help. In this case, you will need to clean the motor contacts or replace the terminal block, which is a more complex procedure.
For final confidence, you can carry out a simple check. Gently shake the removed relay near your ear. If something rattles inside, like a bolt in a jar, it means the core or contacts are damaged. However, this method does not provide a 100% guarantee, since the relay may not ring, but may not close the circuit at the right time due to a violation of the geometry of the bimetallic plate.
Necessary tools and safety measures
Refrigerator repair Atlant does not require a professional set of tools, but a minimum set must be prepared. The main task is to safely get to the compressor and carefully remove the faulty part without damaging the adjacent tubes and wires. Most of the work can be done using standard household tools.
You will need the following set:
- 🔧 Screwdrivers (cross and flat) - for removing the protective casing and dismantling the clamps.
- 🔦 Flashlight — There is usually no lighting in the compressor niche, and it is impossible to examine the markings and condition of the contacts without light.
- 🧤 Dielectric gloves - additional protection, although the work is carried out on a de-energized device.
- 📸 Smartphone - for photographing the wiring diagram before they are connected disconnection.
It is strictly prohibited to use sharp metal objects (knives, awls) to pick contacts or remove insulation in the immediate vicinity of freon pipes. The copper tubes through which the refrigerant circulates have thin walls. Damage to the tube will lead to a freon leak, which will require an expensive call to a technician to refill the system, turning a simple repair into a complex procedure.
Pay special attention to the integrity of the wire insulation. If you find any cracks or cracks in the wires going to the compressor, they will need to be insulated with heat shrink or good quality electrical tape before installing the new relay. Vibrations from a running motor can cause a short circuit if the wires touch the metal housing or each other.
Removing the protective casing and accessing the compressor
To remove the relay, you must first gain access to the rear of the compressor. In two-chamber models Atlant the motor is usually covered with a metal or plastic casing, which performs protective and decorative functions. This casing prevents accidental contact with hot and moving parts, and also protects from dust.
The process of dismantling the casing is as follows:
- Disconnect the refrigerator from the power supply by unplugging the plug from the socket.
- Move the unit away from walls, providing access to the rear wall from all sides.
- Find the casing fasteners. Depending on the model Atlant, these may be screws or latches.
- Using a screwdriver, unscrew the screws. If the casing is held on by latches, carefully pry them off with a flat-head screwdriver, being careful not to break the plastic, which could become brittle over time.
After removing the casing, you will see a view of the compressor - a black “barrel” with tubes coming from it. The relay and starting capacitor (if your model has one) are located at the end of the motor and are often additionally covered with a small plastic cover or secured with a wire clamp. This clamp must be carefully unbent or removed to release the mechanism.
☑️ Preparation for dismantling the relay
In some modifications of refrigerators Atlant the relay can be mounted on a special frame together with the capacitor. In this case, it is more convenient to remove the entire assembly assembly, and only then, on the table, replace the part. This reduces the risk of dropping small elements inside the casing or losing a screw.
Algorithm for dismantling the old relay
The most critical stage is the direct removal of the relay from the compressor contacts. What is important here is not so much strength as accuracy and understanding of the design. The relay is put on three contact pins coming out of the motor housing and fixed in a special position.
Let's consider the step-by-step process:
- 📸 Take photos position of the relay and connecting the wires. Even if it seems like you'll remember, a photo will be insurance during assembly.
- ✂️ Disconnect the wiresgoing to the relay. They can be held on terminals that need to be slightly loosened, or they can be soldered (in older models). Modern Atlanta more often use detachable terminals.
- 🔩 Remove the fixing element. This may be a metal bracket, a plastic latch, or a spring clip that fits around the relay housing.
- 🖐️ Remove the relay. It is removed by moving downward (if you look at the compressor from the side) or by gently rocking it. Do not pull the wires!
Often the relay is enclosed in a plastic cup or box. It is necessary to remove the mechanism itself from this case. The housing usually consists of two halves held together by latches. Gently pry them open to get to the insides. Inside you will see a coil, contacts and a bimetallic strip. It is these elements that are subject to wear.
⚠️ Attention: The relay has a strictly defined installation position. The case is always marked “UP” (top) or an arrow pointing up. If you install the relay upside down, the refrigerator will not start and the relay will burn out instantly. Remember or mark the orientation of the part before removing.
When removing, pay attention to the condition of the contact pads on the relay itself and the mating pins on the compressor. If carbon deposits are visible on the pins, they can be carefully cleaned with fine sandpaper or a file, but this must be done extremely carefully so as not to bend the pins and break the tightness of the compressor outlet.
Selecting a new spare part and installation
Purchasing a new relay is a critical moment. Parts for refrigerators Atlant may vary depending on the power and model of the compressor. The most common series relays are RT, R-3, R-4, R-5, R-6, R-7, R-8, R-10, R-11, R-12, R-13, R-14, R-15, R-16, R-17, R-20, R-21, R-22, R-23, R-24, R-25, R-26, R-27, R-28, R-29, R-30, R-31, R-32, R-33, R-34, R-35, R-36, R-37, R-38, R-39, R-40, R-41, R-42, R-43, R-44, R-45, R-46, R-47, R-48, R-49, R-50, R-51, R-52, R-53, R-54, R-55, R-56, R-57, R-58, R-59, R-60. For example, for compressors up to 1/5 hp. relays are often used R-3 or R-5, and for more powerful ones - R-6 or R-8. The key parameter is the compressor power indicated on the nameplate (for example, 100 W, 120 W, 140 W), and not just the refrigerator model.
Table of correspondence between relay and compressor power for approximate selection:
| Relay model | Compressor power (W) | Compressor type | Note |
|---|---|---|---|
| RT-3 | up to 100 | Single-phase | Old Atlant models |
| RT-6 | 100-120 | Single-phase | Most common |
| RT-8 | 120-140 | Single-phase | For two-chamber |
| RT-12 | 140-160 | Single-phase | Power models |
Installation of a new relay is done in the reverse order. First, make sure that the internals are inserted into the plastic case correctly (using the “UP” mark). Then push the structure onto the three pins of the compressor until it stops. Secure the relay with a bracket or latch. Connect the wires according to the photo or diagram you took earlier. Usually the colors of the wires match, but it’s better to double-check.
Is it possible to use a universal relay?
Universal relays (for example, 117200 series) are suitable for many compressors, but require careful switching of wires. They often come with instructions with a diagram that must be strictly followed. They are cheaper than the original ones, but may work less stably.
After assembling all the elements and installing the casing in place, you can carry out a test run. Plug in the refrigerator. You should hear the engine start confidently without prolonged buzzing or clicking. After 10-15 minutes, check whether the condenser grilles (usually located on the sides or back) begin to heat up - this is a sign that the refrigerant has flowed through the system.
Frequent errors when replacing and troubleshooting
Even after following all the instructions, beginners can make mistakes that will lead to repeated breakdowns or incorrect operation of the refrigerator Atlant. One of the most common mistakes is ignoring the relay orientation. As mentioned earlier, the “up” position must be strictly observed. An inverted relay will not work.
Another error is poor contact in the terminals. If you simply inserted the wires, but did not ensure a tight fit, the contact area will begin to heat up. Over time, the plastic will melt and sparking will occur. All connections must be tight and secure. If the terminal is loose, it needs to be carefully tightened with pliers.
The capacitor is also often forgotten. In many models, the relay is paired with a starting capacitor. If the capacitor is swollen, leaking, or has lost capacity, the new relay may burn out immediately after turning on, or the refrigerator will hum but not start. Always check the condition of the capacitor when replacing a relay.
⚠️ Attention: Do not attempt to repair a burnt out relay by stripping the contacts or gluing the housing. This device is inexpensive, but its incorrect operation can lead to burnout of the compressor windings, the cost of which is up to 70% of the price of a new refrigerator.
If after replacing the relay the refrigerator still does not start, the problem may be deeper. Perhaps the compressor itself is faulty (an interturn short circuit or a wedge of the piston group) or the thermostat does not send a signal to turn on. In such cases, you cannot do without professional diagnostics and instruments (tester, megohmmeter).
How much does a relay for an Atlant refrigerator cost?
The cost of an original starting relay for refrigerators Atlant varies depending on the model and region, but usually ranges from 500 to 1500 rubles Universal analogues can cost less, about 300-600 rubles. Price should not be the main criterion; it is better to choose a quality part.
Is it possible to start a refrigerator without a relay?
Theoretically, you can start a compressor without a relay by forcibly closing the contacts, but doing this is strictly prohibited in domestic conditions. The compressor will remain on constantly, which will cause it to overheat and burn out after a few minutes. The relay is necessary to disconnect the starting winding after starting.
Why does the relay often burn out?
Frequent relay burnout may indicate unstable voltage in the network, wear of the compressor itself (hard start) or incorrect selection of the power of the part. Also, the cause may be poor contact in the electrical circuit, causing heating.
Is it necessary to change the capacitor along with the relay?
It is not necessary to change the capacitor “just in case” if it is visually intact and does not cause suspicion. However, if the relay burned out due to a power surge, there is a chance that the capacitor was also damaged. Checking the capacity with a capacity tester will help you make a decision.
Will the warranty on the refrigerator remain after self-repair?
If the warranty period is still valid, opening the seals and repairing it yourself will lead to loss of warranty. In this case, it is strongly recommended to contact an authorized service center Atlant.