Search thermostat in a two-chamber refrigerator Atlant often becomes the first step in diagnosing temperature-related faults. If the unit has stopped freezing or, conversely, turns food into ice blocks, the reason may lie in this small but critical element. Owners of household appliances are often lost, not understanding where access to the adjustment mechanism has disappeared, since manufacturers try to hide the working units from the user’s eyes as much as possible.
The location of the temperature sensor directly depends on the model of your refrigerator and the type of defrosting system. In older and budget models Atlant with manual defrosting or a drip system, access to the thermostat is usually from inside the refrigerator compartment. In more modern modifications equipped with the system No Frost, the design may be radically different, requiring partial disassembly of plastic panels.
Understanding the exact location regulator is necessary not only to replace a failed part, but also to correctly calibrate the temperature mode. Incorrect actions during the search can lead to damage to the plastic elements of the interior or a violation of the tightness of the system. Therefore, before starting any work, it is important to accurately determine the type of your model and the corresponding layout of the components.
Main types of location in Atlant models
The design features of refrigerators Atlant dictate their own rules for finding a thermostat. In the vast majority of two-chamber models, especially the series MX and MXM, the thermostat is mounted directly inside the refrigerator compartment. This is logical, since this is where the air temperature is controlled, which is then distributed into the freezer.
Most often, the device is hidden behind a decorative overlay or in a niche where a lighting lamp is installed. This allows the user to quickly access adjustment knob without using tools. However, in some cases, especially in models with a weeping evaporator, the sensing element itself (capillary tube) can be embedded deep into the chamber wall, which makes its replacement a complex procedure.
⚠️ Attention: In models with a system No Frost the thermostat is often located behind the back wall or in the upper part of the refrigerator compartment, hidden by a plastic casing. An attempt to remove it without disconnecting from the network may result in an electric shock.
There is also a division according to the type of fastening: some thermostats are fixed with screws, while others are simply inserted into grooves and held in place due to the tightness of the fit. Knowing this feature will help you avoid breaking the plastic latches during dismantling.
Searching for a thermostat in the refrigerator compartment
If you are the owner of a classic two-chamber refrigerator Atlant with a drip defrosting system, start your search from the top of the refrigerator compartment. It is here, under the ceiling of the chamber, that the temperature control unit is most often located. Visually, it looks like a plastic block with a protruding handle or wheel.
To access the insides of the device, it is often necessary to remove the lampshade or the decorative trim on which the regulator handle itself is attached. In some modifications, the handle can be removed by hand, allowing access to the screws securing the thermostat housing. Be careful, the plastic in older models can be fragile.
- 🔍 Inspect the upper right or left corner of the refrigerator compartment - there is often a mounting hole hidden there.
- 🔧 Carefully pry the plastic trim around the control knob with a flat-head screwdriver if it cannot be removed by hand.
- ❄️ Pay attention to the corrugated tube coming from the thermostat body - it leads to the sensitive element.
It is important to understand that in two-chamber models thermostat controls the operation of the compressor, focusing on the temperature in the refrigeration compartment. The freezer compartment is cooled according to the residual principle, so a malfunction of the sensor in the upper compartment will lead to defrosting of the lower one.
Features of models with the No Frost system
Refrigerators Atlantequipped with the system No Frosthave a more complex internal architecture. Here, the thermostat (or its electronic analogue - a temperature sensor) can be hidden behind the rear panel of the refrigerator compartment, which covers the evaporator and fan. This is done to protect sensitive electronics from moisture and condensation.
To access regulating element such models often require complete or partial defrosting of the unit for 10-12 hours. An attempt to remove the back wall without defrosting may damage the ice crust and depressurize the cooling system. This is a critically important point that many self-taught masters forget about.
In some modern series Atlant the mechanical thermostat is replaced by an electronic sensor, which looks like a small plastic cylinder with two wires. It can be installed in a special hole in the ceiling of the chamber or built into the air duct.
Why is it more difficult to find a thermostat in No Frost?
In No Frost systems, air circulates forcibly, so the sensor is often hidden in the zone of active air flow, covering it with protective covers from direct contact with products.
Comparative table of location by series
To systematize the information and make searching easier, we have compiled a table describing the typical installation locations of thermostats in various series of refrigerators Atlant. Remember that within the same series there may be modifications with different designs.
| Refrigerator series | Type of defrosting | Typical location | Access to adjustment |
|---|---|---|---|
| Atlant MKhM 1700 | Drip | Inside the chamber, top right | Free, through the handle |
| Atlant MKhM 2808 | Drip | Behind the decorative strip above the door | Requires strip removal |
| Atlant XM 4425 | No Frost | Behind the rear wall (inside) | Complicated, defrosting required |
| Atlant MHM 6025 | No Frost | At the top of the chamber, hidden | Medium, removing the ceiling |
This table is for reference only. The exact location can always be determined from the technical documentation (diagram) that came with the refrigerator, or from the markings on the device itself.
Signs of a malfunctioning thermostat
Before you start searching and replacing, you need to make sure that the problem lies in the thermostat. There are a number of characteristic symptoms indicating failure of this unit. Ignoring these signs can lead to food spoilage or compressor failure.
The most obvious sign is that the refrigerator does not turn off works continuously, forming ice on the back wall or in the corners of the chamber. This indicates that the contacts of the thermostat are “stuck” in a closed state, and the unit does not receive a signal that the desired temperature has been reached.
The opposite situation - the unit is silent and does not start, even if the temperature inside has risen to room temperature. If the compressor is working properly and there is voltage in the network, then most likely the thermostat has “broken” the circuit and is not giving the start command.
- 🌡️ The temperature in the chamber differs significantly from the one set by the regulator knob.
- 💧 The appearance of a large puddle under the refrigerator due to frequent cycles defrost.
- 🔊 The thermostat clicks began to be heard too often or disappeared completely.
⚠️ Attention: If the refrigerator makes loud clicks, but does not start, the problem may be not only in the thermostat, but also in the compressor start relay. Do not rush to change all the parts at once.
Instructions for self-replacement
Replacing the thermostat in a two-chamber refrigerator Atlant is a procedure accessible to a person with basic skills in handling tools. The main safety rule is to completely disconnect the device from the power supply before starting work. Under no circumstances manipulate live electrical components.
After you have reached the installation site, you must carefully disconnect the wires. It is recommended to mark them or take a photo so that when assembling everything is connected correctly. Then the fasteners are unscrewed and the old thermostat is removed from its seat.
Particular attention should be paid to the sensitive tube of the new regulator. It must be carefully inserted into the same hole where the old one was located, being careful not to bend it or damage it. The length of the tube must correspond to the original, otherwise the temperature readings will be incorrect.
☑️ Thermostat replacement algorithm
After installing the new part, reassemble the structure in the reverse order. It is better to perform the initial start-up without loading products in order to check the stability of operation and the correctness of the on-off cycles.
Frequently asked questions (FAQ)
Is it possible to operate a refrigerator without a thermostat?
Theoretically, you can close the contacts so that the compressor runs constantly, but this will lead to rapid failure of the motor and the formation of an ice block in the chamber. Operation in this mode is only permissible for a short time for diagnostics.
Why does the thermostat click, but the refrigerator does not turn on?
The click means that the contacts open or close, but the signal does not reach the compressor. The reason may be a malfunction of the thermostat itself (no contact inside), a broken wiring or a breakdown of the engine start relay.
Where to buy an original thermostat for Atlant?
It is better to look for original spare parts in the authorized service centers of the brand Atlant or from official dealers. There are many analogues on the market that may not be suitable in terms of the length of the capillary tube or the type of fastening.
How to check the thermostat with a multimeter?
You need to remove the thermostat, immerse its sensitive tube in cold water (about +5°C) and ring the contacts. They should call. When placed in hot water, the contacts should open. If this does not happen, the part is faulty.