How to properly remove the temperature regulator in the Atlant refrigerator: instructions with photos and nuances

Temperature regulator (thermostat) in refrigerators Atlant is a key element responsible for maintaining a given climate regime. Its breakdown leads to improper operation of the equipment: the compressor may not turn off, the freezer freezes the food, or vice versa - the temperature in the main chamber rises above normal. Removing the thermostat is the first step for diagnosing or replacing a part, but the process requires care: incorrect actions can damage the capillary tube or contacts.

In this article - step-by-step instructions taking into account the features of popular models Atlant (series MHM, HM, MXM), as well as list tools, typical errors and safety tips. If you have never disassembled a refrigerator, start by studying the thermostat design - this will help you avoid annoying mistakes.

⚠️ Warning: Working with electrical appliances requires compliance with safety precautions. If you are not confident in your skills, contact a specialist. Atlant some models use thermostats with a gas-filled system - damage to the capillary tube will make the part unrepairable.

Temperature regulator device in refrigerators Atlant

The temperature regulator (or thermostat) in refrigerators Atlant of the mechanical type is an electromechanical device that consists of several key elements:

• 🔧 Case with contacts —a plastic or metal base where the terminals for connecting wires. In models Atlant MHM-1708 and similar, the case is usually plastic, with marking K59-L1437 or similar.
• 📏 Capillary tube —a thin copper tube filled with freon or gas. It is attached to the evaporator and reacts to changes in temperature, transmitting a signal to the mechanism for opening/closing contacts.
• ⚙️ Spring mechanism - is responsible for triggering the contacts when the set temperature is reached. It is adjusted by rotating the thermostat knob.
• 🔌 Terminal block —the connection point for wires from the compressor, lighting lamp and other circuit elements.

In most models Atlant (for example, XM-4021 or MXM-2835) the thermostat is located inside the refrigerator compartment, under the plastic control panel. Less often - in the upper part of the body (in older modifications). Main feature: the capillary tube is fixed to the evaporator using a clamp or clip, and its accidental disconnection will lead to gas leakage and inoperability of the part.

⚠️ Attention: In refrigerators Atlant with a system No Frost (for example MXM-2806-90), the thermostat can be integrated into the electronic control unit. In this case, replacing it requires special skills and soldering equipment.

Tools and materials for dismantling

To remove the thermostat you will need basic tools, most of which can be found in your home kit. Here is the complete list:

• 🔧 Phillips and flathead screwdrivers —for unscrewing the screws securing the panel and terminals.
• 📸 Smartphone or camera —to fix the location of the wires before disconnecting.
• 🧲 Magnet or marker — for marking wires (if there is no connection diagram).
• 🔨 Pliers —may be needed to loosen the capillary tube clamps.
• 🧤 Rubber gloves —for protection from sharp edges of the metal case.
• 🔋 Multimeter - to check the functionality of the thermostat (optional, but recommended).

If you plan replace thermostat, buy a similar one in advance model. For refrigerators Atlant the following series thermostats are suitable: K59 (for example, K59-L1437), TAM-133 or Danfoss 077B6. Check the marking on the body of the old thermostat - it should match the new part.

Capillary tube thermostat Atlant attached to the evaporator using a plastic clamp. When dismantling, do not pull the tube - this may damage its connection to the siphon system!

Step-by-step instructions: how to remove the temperature regulator

The process of dismantling the thermostat in refrigerators Atlant takes 20-40 minutes depending on the model. Follow the instructions strictly in order to avoid mistakes.

Step 1. Turning off the refrigerator and preparing

• Unplug the refrigerator from the socket. If the power cord is hidden behind the back wall, turn off the machine on the panel.
• Remove all food from the refrigerator and freezer (if there is one). Shelves and drawers can be left, but they should not interfere with access to the control panel.
• If there is ice in the refrigerator, let it melt (if necessary, use a hair dryer to speed up the process).

Step 2. Removing the plastic panel

• In most models Atlant (for example MXM-1708-03) the control panel is attached with latches or screws. Carefully pry it off with a flat screwdriver from the side or bottom.
• If the panel is fixed with self-tapping screws, unscrew them with a Phillips screwdriver. Usually there are 2-4 of them (located in the corners).
• Remove the panel and put it aside. Under it you will see a thermostat with connected wires.

Step 3. Disconnecting the wires

• Take a photo of the location of the wires on the thermostat terminals. This will help you connect them back correctly.
• Loosen the terminal block screws with a Phillips screwdriver and carefully remove the wires. If the contacts are oxidized, clean them with alcohol or sandpaper.
• Mark the wires with a marker or tape (for example, “K” - compressor, “L” - lamp, “Z” - grounding).

Step 4. Removing the capillary tube

• Find the place where the capillary tube is attached to the evaporator. Usually this is a plastic clamp or a metal clip.
• Loosen the clamp with pliers or a screwdriver and carefully remove the tube. Do not bend it too much —this may lead to depressurization.
• If the tube is soldered (in older models), use a low-temperature soldering iron to avoid damage evaporator.

Step 5. Removing the thermostat

• Unscrew the screws or loosen the latches holding the thermostat housing.
• Carefully pull the part out of the seat. If the thermostat is stuck, do not use excessive force - it is better to treat the joints with WD-40.
• Check the integrity of the capillary tube. If it is damaged, the thermostat must be replaced.

⚠️ Attention: In refrigerators Atlant with an upper thermostat (for example, XM-4026), it may be necessary to remove the top cover of the housing. To do this, unscrew the screws on the back and slide the cover forward.

What to do if the thermostat is stuck?

If the thermostat housing cannot be removed due to oxidation or corrosion, do not hit it with a hammer! Use a penetrating lubricant (WD-40 or equivalent), let it sit for 10-15 minutes, then gently rock the part from side to side. If this does not help, you may need to drill out the screws or cut the plastic case with a knife (but this is an extreme case).

Features of dismantling in different models Atlant

The design of refrigerators Atlant varies depending on the series and year of manufacture. Below are the key differences that are important to consider when removing the thermostat.

In models with electronically controlled (for example, Atlant MHM-2806-90), the thermostat is a temperature sensor soldered into the board. Replacing it requires skills in working with soldering equipment and knowledge of the connection diagram. If your refrigerator belongs to this category, it is better to contact a service center.

⚠️ Attention: In refrigerators Atlant manufactured before 2010 (for example, XM-4010) thermostats may have non-standard connectors. Before purchasing a new part, check its markings with the old one or check compatibility with the seller.

Typical mistakes and how to avoid them

Even experienced craftsmen sometimes make mistakes when dismantling the thermostat. Here are the most common mistakes and ways to prevent them:

• ⚡ Damage to the capillary tube —occurs with a sharp jerk or bend. How to avoid: before removing the tube, loosen the clamp and carefully pull it out of the mount without applying force.
• 🔌 Messed-up wires —if you do not label or photograph the connection, you may assemble the circuit incorrectly. How to avoid: Use a marker or tape to identify each wire.
• 🔧 Failure of self-tapping screws — often happens when using an unsuitable screwdriver. How to avoid: take a screwdriver with an exactly suitable tip and do not use excessive force.
• 🧊 Broken contacts —oxidized the terminals may break when unscrewed. How to avoid: pre-clean the contacts with alcohol or a special liquid.
• 🔥 Short circuit - if you do not disconnect the refrigerator from the network before work. How to avoid: always unplug the plug from the socket and check the absence of voltage with a multimeter.

Another common problem is incomplete removal of the thermostat. If a part is “jammed” in a seat, do not try to pull it out by force. It is better to treat the joints with penetrating lubricant and wait 10–15 minutes. As a last resort, you can carefully pry off the housing with a flat-head screwdriver, but without fanaticism.

How to check the thermostat for functionality

If you removed the thermostat for diagnostics, you can check it without special equipment. You will need a multimeter and a little patience.

Method 1. Testing with a multimeter

• Set the multimeter to resistance testing mode (ohmmeter).
• Connect the probes to the thermostat terminals (usually these are contacts 3 and 4 —check the diagram on the case).
• At room temperature, the resistance should be close to zero (the contacts are closed).
• Place the thermostat in a container with cold water (0–5°C). After 2-3 minutes, the resistance should become infinite (the contacts will open).
• If the resistance does not change, the thermostat is faulty.

Method 2. Direct connection of the compressor

• Disconnect the wires from the thermostat and connect them directly, bypassing the regulator (observe polarity!).
• Plug in the refrigerator. If the compressor starts working, the problem is in the thermostat.
• ⚠️ Attention: This method is dangerous! Only use it if you are confident in your skills. Do not leave the refrigerator turned on in this state for a long time.

If the thermostat does not pass the test, it must be replaced. The new part must have the same markings and connection type. Models Atlant often use thermostats K59 or TAM-133, but check this by the label on the body of the old part.

Installation of a new thermostat: step by step

Installation of a new thermostat is carried out in the reverse order, but taking into account several nuances. Follow these instructions to avoid mistakes:

Step 1. Preparing a new part

• Compare the markings of the old and new thermostats. They must match.
• If the capillary tube of the new part is longer, carefully lay it along the path of the old one, without bending it.

Step 2. Installing the thermostat in place

• Insert the thermostat housing into the seat and secure with screws or latches.
• Secure the capillary tube to the evaporator using a clamp. Make sure that it does not touch moving parts (for example, the fan in models with No Frost).

Step 3. Connecting the wires

• Connect the wires to the terminals according to the photographs or marks taken earlier.
• Tighten the terminal block screws, but do not overdo it - you can break it thread.

Step 4. Assembling the control panel

• Install the plastic panel in place and secure it with screws or latches.
• Plug in the refrigerator and check its operation. The compressor should start in 5-10 minutes.

⚠️ Attention: After replacing the thermostat, it may take 12-24 hours for the refrigerator to return to operating mode. At this time, do not load it with food - first make sure that the temperature has stabilized.

FAQ: Frequently asked questions about thermostats Atlant

Is it possible to repair the thermostat yourself, or just replace it?

Mechanical thermostats Atlant (for example, K59) cannot be repaired - they can only be replaced. Exception: if the problem is in oxidized contacts, they can be cleaned with alcohol or sandpaper. Electronic thermostats (in models with No Frost) can only be repaired at a service center.

How to understand that it is the thermostat and not the compressor that is to blame?

If the compressor does not turn on at all, check:

• Voltage in the socket (there may be a power problem).
• Integrity starting relay (if there is a malfunction, it clicks, but the engine does not start).
• Resistance of the compressor windings (should be 20–40 Ohms).

If the compressor works without stopping or, on the contrary, turns on too rarely, the problem is most likely in the thermostat.

Where to buy a thermostat for a refrigerator Atlant?

Spare parts can be found:

• In specialized stores (for example, "Spare parts for refrigerators").
• On marketplaces (Yandex Market, Ozon, Wildberries) - search by marking (for example, K59-L1437).
• B service centers Atlant —there they are guaranteed to select a compatible part.

The average price of a thermostat for Atlant: 800–1500 rubles.

What to do if after replacing the thermostat the refrigerator freezes too much?

Possible reasons:

• The wires are connected incorrectly (check the diagram).
• The capillary tube touches hot parts (for example, compressor) - this distorts the readings.
• The new thermostat is not calibrated - try turning the adjustment knob to the middle position.

If the problem persists, the defrost sensor or fan may be faulty (in models with No Frost).

Is it possible to temporarily operate the refrigerator without a thermostat?

Technically yes, but this is highly not recommended. Without a thermostat, the compressor will operate continuously, which will lead to:

• Freezing of food.
• Increased energy consumption.
• Overheating and failure of the compressor.

If the thermostat is broken and a new one is not at hand, it is better to unplug the refrigerator and use it as a cabinet for short-term storage.