Modern household appliances brand Dexp has gained popularity due to its affordable price and functionality, however, many users have difficulty with the initial calibration of climate modes. Correctly setting the temperature is not just a matter of comfort, but also a guarantee of food safety, as well as the durability of the compressor. Incorrectly set parameters can lead to rapid deterioration of perishable goods or, conversely, to excessive energy consumption due to excessive cooling.
In this article we will analyze in detail the action algorithms for various models, including dual-chamber and single-chamber devices. You will learn how to interpret the readings of an electronic display or mechanical regulator, and in which situations manual intervention is required. Correct adjustment allows you to create ideal conditions for storing vegetables, meat and dairy products, prolonging their freshness for as long as possible.
Before you begin adjustment, it is important to understand that The refrigeration unit requires time to stabilize processes after switching on or defrosting. An instant change in the readings on the display does not mean that the desired environment has already been established inside the chambers - thermodynamic equilibrium is achieved within several hours. Therefore, all measurements and final adjustments should be carried out only after the device has been operating normally for at least 5-6 hours.
Principles of operation of the Dexp cooling system
Refrigerators Dexp can be equipped with various climate control systems, from classical mechanics to advanced electronic units with function No Frost. In mechanical models, adjustment is carried out by turning the thermostat, where the number indicates not degrees, but the intensity of the compressor. The higher the value on the scale, the colder it will be inside, however, this is not a linear relationship, and the “maximum” position often leads to the formation of ice.
Electronic control, characteristic of more modern lines, allows you to set the exact temperature in degrees Celsius for each compartment independently. Sensors located on the rear wall or in the air ducts constantly monitor the state of the environment and send signals to the control board. Microprocessor makes a decision to turn on or off the compressor, relying on embedded algorithms, which ensures high accuracy of maintaining the mode.
⚠️ Attention: Sudden changes in temperature conditions (eg switching from +5°C to +1°C) places extreme stress on the refrigerant and compressor. Manufacturers recommend changing the settings smoothly, at intervals of several hours, so that the system has time to adapt without the risk of breakdown.
It is important to distinguish between static cooling and the system No Frost. In the first case, cold air falls from top to bottom naturally, which can create a temperature gradient of several degrees between the shelves. In the second case, fans forcefully circulate air flows, leveling the indicators throughout the entire volume of the chamber, but at the same time somewhat drying out products that are not packaged in containers.
Setting the mechanical thermostat
In models with mechanical control, you will not see digital values on the front panel. Instead, a rotary knob with divisions is used, usually from 1 to 5 or from Min to Max. Understanding the logic of the operation of this unit is critically important, since many users mistakenly believe that the number “1” means +1 degree, which is a fundamental misconception.
In fact, the scale reflects the cooling power: the minimum value means that the compressor will turn on rarely and will not work for long, maintaining a relatively high temperature. The maximum value forces the unit to work almost non-stop, trying to achieve the lowest possible temperatures, which in winter can lead to freezing of products in the main chamber.
For standard food storage mode in mid-range conditions, it is recommended to set the regulator to the middle position. If the room is very hot, you can add one division in the direction of increasing the power, but do not immediately turn the knob all the way. The optimal starting value for most models Dexp is division 3 or 4 out of five possible ones.
- 🌡️ Division "Min" or "1" - economical mode, the temperature inside can reach +8..+10°C, suitable for storing drinks or fruits that do not require extreme cold.
- ❄️ Division "Max" or "5" - intense freezing or hot weather mode, the temperature can drop below 0°C even in the refrigerator compartment.
- ⚙️ Middle position - balance between energy consumption and food preservation, target temperature approx. +4..+5°C.
It is worth considering that mechanical thermostats have hysteresis - the temperature difference between turning on and off. This means that when set to “3” the chamber can cool down to +3°C and heat up to +7°C before the next start of the engine. This amplitude is normal for this type of equipment and is not a malfunction.
Electronic control adjustment
Digital control panels on refrigerators Dexp provide the user with complete control over the microclimate. The interface can be implemented in the form of touch buttons on the door or hidden buttons under the top cover of the refrigerator compartment. To activate the setup mode, you usually need to press and hold the button with the image of a thermometer or key for 3-5 seconds until a characteristic sound signal appears or the indicators blink.
After entering the setup menu, the current temperature values begin to flash on the display. Using the arrow buttons or "+/-", you can change target indicators.
Sequence of actions:1. Press "Fridge" or "Freezer" to select a zone.
2. Hold the setting button for 3 seconds.
3. Use the arrows to set the value.
4. Press "OK" or do not touch the panel for 10 seconds to save.
The optimal temperature for the refrigerator compartment is considered to be from +3°C to +5°C. At these rates, bacteria multiply slowest, and food does not freeze. In the freezer the standard is -18°C. Reducing the temperature below -20°C has no practical meaning for domestic use and only increases energy consumption, since the nutritional value of products at -18°C and -24°C is preserved for the same long time.
Optimal temperature conditions for different products
Knowledge of the recommended storage modes for various categories of products will help you set up the refrigerator Dexp as efficiently as possible. Different zones within the chamber may have slightly different temperature profiles, especially on models with a drip system. Proper distribution of products on the shelves will allow you to use the device's potential 100%.
Top shelves are usually intended for products that do not require deep refrigeration, such as ready meals, baked goods or drinks. The middle shelves are the zone with the most stable climate, ideal for dairy products, sausages and cheeses. The lower shelves and drawers for vegetables (zone Zero Zone or Fresh Zone) often have high humidity and a temperature just above zero, which prevents vegetables from wilting and fruits from freezing.
| Product type | Recommended temperature | Shelf life (approximate) | Placement area |
|---|---|---|---|
| Fresh meat and fish | 0°C.. +2°C | 1-2 days | Bottom shelf / Freshness zone |
| Dairy products | +2°C.. +4°C | 3-5 days (after opening) | Middle shelves |
| Vegetables and fruits | +5°C.. +8°C | 3-7 days | Bottom drawers |
| Ready meals | +3°C.. +5°C | 2-3 days | Upper shelves |
The super-cooling zone requires special attention, if it is provided in your model Dexp. This compartment maintains a temperature of approximately 0°C, which is ideal for short-term storage of defrosted meat before cooking or for quickly cooling drinks. However, it is not recommended to keep food there all the time, as some of it may lose taste or texture.
Special modes and functions
Modern refrigerators Dexp are often equipped with additional functionality that helps in such situations. The "Super Freeze" mode (Super Freeze) forces the compressor to work continuously, quickly freezing a large volume of fresh food so that large ice crystals do not form in them, destroying the cell structure.
The "Vacation" mode (Holiday Mode) is intended for long-term absence of owners. In this state, the refrigerator compartment enters an economy mode with a temperature of approximately +15°C to prevent mold and odors, while the freezer continues to operate normally. This allows you to preserve frozen stocks without spending extra energy on cooling empty space.
⚠️ Attention: Before activating the Vacation mode, make sure that there are no perishable products left in the refrigerator compartment. At a temperature of +15°C, milk, meat and vegetables will spoil in a matter of hours.
The "Quick Cooling" function is useful when you return from the store with a full bag of food at room temperature. The algorithm temporarily increases cooling power to quickly return the internal environment to the specified parameters. However, you should not abuse this function, as it significantly increases operating noise and power consumption.
Diagnosing problems and decoding errors
If the temperature setting does not lead to the desired result, or strange symbols appear on the display, the device may be signaling a malfunction. Refrigerator electronics Dexp are capable of self-diagnosis and display error codes that help the technician determine the cause of the failure. Ignoring these signals can lead to serious damage.
A common problem is the temperature indicator blinking or letter codes appearing. For example, code E1 or F1 often indicates a malfunction of the temperature sensor in the refrigerator compartment, and E2 in the freezer. If the sensor "lies", the compressor receives incorrect commands and either does not turn on or works without stopping.
- 🔊 Humming and clicking sounds - may indicate problems with the start relay or insufficient clearance between the case and the wall.
- 💧 A puddle under the refrigerator is often the result of a clogged drainage hole, rather than a system malfunction cooling.
- ❄️ A snow coat on the back wall is a sign of a loose door fit or a malfunction of the thermostat.
If an error code appears, it is recommended to disconnect the device from the network for 10-15 minutes to reboot the controller. If after restarting the error returns, further independent temperature adjustment is useless and a specialist call is required. Attempts to “treat” electronics using traditional methods can completely damage the control board.
☑️ Check before calling a technician
Frequently asked questions (FAQ)
Why is the Dexp refrigerator very cold even on minimum settings?
This may be due to several factors: failure of the thermostat (it is “stuck” in the on position), freon leakage (the compressor runs non-stop, trying to gain temperature) or warm air entering through a leaky door seal. Also, in winter, in an unheated room, the mechanical regulator may not work correctly.
What temperature should be set in summer and what in winter?
In summer, when the ambient temperature is high, there is more heat inflow, so it makes sense to set the value 1 division more powerful than usual (for example, 4 instead of 3). In winter, if the refrigerator is kept warm, the settings can be left as standard. If the equipment is in a cold corridor (+10..+15°C), mechanical models may stop turning on, and they will require a special winter mode or setting the thermostat to maximum.
What does the flashing temperature indicator on the display mean?
Flashing usually indicates that the current temperature inside the chamber is higher than the set norm. This happens immediately after switching on, after prolonged defrosting or loading a large amount of warm food. If the indicator stops flashing after a few hours, everything is fine. If the blinking does not stop for a day, there may be a malfunction.
Is it possible to configure the Dexp refrigerator via a smartphone?
Most budget and mid-budget models Dexp do not support the Smart Home function and control via Wi-Fi. Settings are made exclusively through the panel on the case. The presence of a Wi-Fi module must be indicated in the instructions and indicated by the corresponding icon on the front panel.
Is it necessary to defrost a refrigerator with No Frost?
The system No Frost automatically removes moisture, so the formation of ice in work areas is excluded. However, it is recommended to carry out hygienic defrosting and washing at least once a year. This is necessary to remove bacteria, odors and clean hard-to-reach places where a vacuum cleaner or rag cannot reach during normal cleaning.