How to properly turn on a two-compressor Atlant refrigerator: a step-by-step guide

Two-compressor refrigerators Atlant is a popular solution for those who value separate control of the freezer and refrigerator compartments. However, starting them after purchase, moving or a long shutdown requires special attention. Unlike single-compressor models, it is important here not only to supply power, but also to correctly configure the operating modes of each compartment. Errors at this stage can lead to increased energy consumption, incorrect temperatures, or even breakdown of compressors.

In this article we will analyze the switching process in detail, taking into account the design features Atlant with two motors. You will learn how to avoid common mistakes, which indicators should be on when you first start it, and what to do if the refrigerator does not respond to button presses. The material is relevant for all modern models of the brand, including the series NM, NB i MHM.

Preparation for the first use: what you need do before turning on the power

Before connecting the refrigerator to the outlet, complete several mandatory steps. This is especially important if the equipment was delivered in a horizontal position or stood idle for a long time.

• ⏳ Allow time after transportation. If the refrigerator was transported lying down, it cannot be turned on for a minimum 4–6 hours (for models with inverter compressors - up to 24 hours). This is necessary so that the oil from the compressors flows back and does not cause water hammer when starting.
• 🔌 Check the outlet and power cord. Make sure that the voltage in the network is stable (220–240 V), and the plug fits tightly into the connector. For Atlant with two compressors, a separate power line is recommended - they consume up to 300-400 W at startup.
• 🧹 Remove packaging materials. Remove the protective film, foam inserts and shipping bolts (if any). In some models Atlant fasteners secure the compressors - they must be unscrewed.
• 🌡️ Evaluate the room temperature. The optimal range for operation is from +16 to +32°C. At lower or higher values, compressors may not operate correctly.

If the refrigerator was stored in the cold (for example, in an unheated garage), allow it to warm up to room temperature for 12-24 hours before turning it on. This will prevent the formation of condensation on electronic boards and seals.

⚠️ Attention: Never turn on a refrigerator Atlant with two compressors through an extension cord or tee. Peak loads when starting motors can lead to overheating of contacts and a fire.

Step-by-step instructions: how to turn on the Atlant refrigerator with two compressors

When the preparation is completed, proceed to start-up. In two-compressor models Atlant each motor is controlled separately, so the process differs from standard refrigerators.

1. Connect the plug to the outlet. The power indicators on the control panel should light up (usually a green or blue LED). If there is no indication, check the fuses in the panel.
2. Adjust the temperature in the refrigerator compartment. Use the buttons or touch panel (depending on the model). The optimal value is +4…+5°C. In some series Atlant adjustment is carried out by a rotary switch with marks from 1 to 7.
3. Activate the freezer. Press the button to turn on the second compressor (usually indicated by a snowflake ❄️ or inscription Freezer). Set the temperature -18°C for long-term storage or -24°C for quick freezing.
4. Wait for the first cycle of operation. The compressors will not start immediately - the electronic board performs self-diagnosis (1-3 minutes). Then you will hear a relay click and a slight vibration.

In models with a display (for example, Atlant MHM 2835-100), after switching on, the message Hi or dO may appear - this is normal. It will disappear after 5–10 seconds, when the system determines the current temperature in the chambers.

The shipping bolts have been removed|The refrigerator is level (checked by level)|The socket can withstand a load of 10A|The room temperature is +16...+32°C|Power indicators light up after connection-->

What to do if the Atlant refrigerator does not turn on

If nothing happens after connecting to the network, do not panic. In 80% of cases, the problem is solved without calling a technician. Here is the diagnostic algorithm:

If the refrigerator Atlant makes a hum but does not freeze, the compressor is probably jammed. In this case, immediately disconnect it from the network and do not turn it on until repaired - further work may lead to a break in the winding.

⚠️ Attention: In models with electronic control (for example, Atlant NM 6204-100) after a power failure, the firmware may be lost. If the display shows incorrect characters, try resetting the settings by holding the button Super Freeze 10 seconds.

How to reset error E1 on Atlant

1. Unplug the refrigerator for 1 minute.

2. Turn it back on and immediately press the button Freezer 3 times in a row.

3. Wait 15 seconds - the error should disappear.

If not, the defrost sensor needs to be replaced (NTC 10 kOhm part).

Features of switching on after defrosting or power outage

Two-compressor refrigerators Atlant sensitive to sudden temperature changes. After defrosting or emergency power outage, follow these rules:

• ⏹️ Do not turn it on immediately. Allow the cameras to warm up to room temperature (1-2 hours). This will prevent ice from forming on the evaporator.
• 💧 Remove moisture. Wipe all surfaces with a dry cloth, especially the door seals. Moisture can cause corrosion of metal parts.
• ⚡ Check the voltage. After power surges, low voltage may remain in the network. Use a stabilizer if the value is below 200 V.
• ❄️ Do not load products immediately. Let the refrigerator run empty for 2-3 hours to allow the temperature to stabilize.

In models with a system No Frost (for example, Atlant MHM 2808-90), forced defrosting may be triggered after switching on. This is normal - the fan will run louder and condensation will appear on the back wall. The process takes up to 30 minutes.

Setting temperature modes: optimal parameters for two-compressor models

The main advantage of two-compressor refrigerators Atlant is independent control of the chambers. However, incorrect settings can lead to excessive energy consumption or food spoilage. Here are recommendations for choosing modes:

• 🥦 Refrigerator compartment:
  • +2…+4°C — for fresh vegetables, fruits, dairy products;
  • +5°C —optimal for long-term storage of prepared dishes;
  • +1…+2°C —if you need it quickly cool drinks (no more than 2 hours).
• ❄️ Freezer compartment:
  • -18°C —standard mode for storing meat, fish, berries;
  • -24°C —quick freezing (no more than 24 hours);
  • -12°C —if the chamber is less than full 30%.

In models with the function Super Cool (for example, Atlant NB 6206-100), when this mode is activated, the refrigerator compartment compressor operates at maximum power for 6 hours, then automatically switches to normal mode. Use it only when necessary - it increases energy consumption by 20–30%.

To save energy in two-compressor refrigerators Atlant you can turn off the freezer if it is not in use. To do this, press the button Freezer Off (in some models - hold Temp Freezer 3 seconds). The refrigeration chamber compressor will continue to operate as normal.

Typical errors when turning on and how to avoid them

Even experienced users sometimes make mistakes that lead to breakdowns or ineffective operation of the refrigerator. Here are the most common of them:

1. Ignoring the waiting time after transportation. As already mentioned, turning on earlier than after 4-6 hours is fraught with water hammer of the compressor. In service centers Atlant up to 30% of such cases end in replacing the motor.
2. Overloading the chambers with products immediately after switching on. This leads to prolonged operation of compressors at maximum power and overheating. Fill the refrigerator gradually, starting with the most necessary products.
3. Use of non-original surge protectors. Cheap extension cords may not withstand the starting currents of two compressors. Use only sockets with grounding and a rating of at least 10A.
4. Setting the same temperature in both chambers. In the freezer there must be at least -15°C, otherwise the food will begin to deteriorate, and in the refrigerator - no lower +2°Cto prevent ice from forming on the back wall.
5. Ignoring error signals. Flashing indicators or sound signals (in models with Sound Alarm) indicate a malfunction. They cannot be reset without eliminating the cause.

Another common mistake is placing the refrigerator Atlant close to a wall or furniture. For normal air circulation, there must be at least 5 cm of free space behind the back wall. Otherwise, the compressors will overheat, which will reduce their service life by 20–30%.

⚠️ Attention: In refrigerators Atlant with two compressors, you cannot simultaneously activate the Super Cool and Super Freeze. This can lead to current protection and emergency shutdown.

Frequently asked questions about turning on two-compressor refrigerators Atlant

How long should the compressor run at first turning on?

When first started, compressors can work without stopping for up to 8–12 hours - this is normal. During this period, they reach operating mode and reach the set temperature. If after this time the motors do not turn off, check:

• The tightness of the doors (the seal may be interfering);
• The room temperature (if above +30°C, the compressors will work longer);
• Settings - the temperature may be set too low threshold.

Why does the Atlant refrigerator make a loud noise after turning it on?

Loud operation in the first 1-2 days is normal. Reasons:

• Acceleration of refrigerant through the system (characteristic "gurgling" sound);
• Fan operation No Frost (in models with this system);
• Vibration of compressors due to unregulated legs.

If the noise does not decrease after 3 days, check:

• Level of the refrigerator (adjust the legs so that it stands level);
• Distance to the wall (must be at least 5 cm);
• Presence of foreign objects behind the back wall (the tubes should not touch the furniture).

Is it possible to turn on the Atlant refrigerator without a voltage stabilizer?

Technically it is possible, but not recommended. Dual-compressor models are sensitive to voltage changes. At values below 190 V or above 250 V:

• The protection of the compressors is triggered (they do not start);
• There may be malfunctions in the electronic board;
• The service life of the motors is reduced.

If in your network frequent surges, use a stabilizer with a power of at least 500 W and an adjustment range of 140–260 V.

What to do if after turning on the display shows an error E3?

Error E3 in refrigerators Atlant indicates a problem with freezer temperature sensor. Try:

1. Disconnect the refrigerator from the network for 5 minutes;
2. Check whether the sensor is iced up (it is located on the evaporator);
3. If the error remains, the sensor needs to be replaced (NTC 10 kOhm part, the article depends on the model).

A temporary solution can be forced defrosting for 12 hours.

How to turn on only one chamber in a two-compressor Atlant?

In most models this is done like this:

• For refrigerator compartment: press the button Fridge Off (or hold Temp Fridge 3 seconds). The freezer compressor will continue to operate.
• For freezer compartment: press Freezer Off (or hold Temp Freezer 3 seconds). The refrigerator compartment will remain active.

In models with mechanical control (for example, Atlant XM 4021-000) it is not possible to turn off one of the chambers - the compressors operate synchronously.