How long does the refrigerator work after the first turn on

After purchasing and installing new household appliances, many owners are faced with an alarming observation: the unit has been humming for several hours, and the characteristic click of the start relay contacts opening does not occur. A natural question arises: how long does the refrigerator run after it is first turned on and when should it stop? There is no need to panic in this situation, since the initial start-up always differs from normal operation.

Unlike the usual mode, when the motor-compressor is turned on periodically, during the first boot, the system must cool not only the air inside the chambers, but also the massive walls of the cabinet, shelves, drawers, as well as the products that you have placed there. Heat capacity construction materials is high, so the process of heat extraction takes much longer than maintaining the already achieved temperature.

Modern models, especially those equipped with a system No Frost or Smart Cooling, can operate in enhanced mode until the sensors record the set parameters in all zones storage It is important to understand that long continuous operation on the first day is a standard algorithm, and not a sign of a malfunction, unless this period exceeds reasonable limits, which we will talk about later.

Standard operating time during initial startup

The answer to the question of how long a refrigerator should work before the first shutdown depends on many factors, but there are average technical standards for working equipment. Under standard conditions, when the ambient temperature is in the range of +18...+25°C, and the unit is approximately half loaded, the first cooling cycle lasts from 3 to 8 hours. Compressor During this time, it operates without interruption, creating the necessary pressure in the system.

If we are talking about models with an inverter engine type, the situation may look different. Such motors rarely turn off completely, switching to minimum power mode after reaching the target temperature. However, when turned on for the first time, they will also operate at maximum speed for a long time. Older models with linear compressor are characterized by a noisier and longer first stroke of operation.

⚠️ Attention: If your refrigerator operates without stopping for more than 12-14 hours at normal room temperature, this may indicate a violation of the tightness of the circuit, a leak refrigerant or thermostat malfunction.

The duration of the first cycle directly depends on how correctly the device was prepared. If the unit was transported lying down or subjected to shaking, the oil in the compressor took time to drain into the crankcase. Starting up immediately after delivery could trigger a water hammer or dry operation, which would increase the time to reach the operating mode or lead to a breakdown. transportation and device preparation. If the unit was transported lying down or subjected to shaking, the oil in the compressor took time to drain into the crankcase. Launching immediately after delivery could cause water hammer or dry operation, which would increase the ramp-up time or lead to breakdown.

Factors influencing operating time

There are a number of objective reasons why a new refrigerator does not turn off for a long time. First of all, this ambient temperature. If you install the appliance in a hot kitchen or near a stove, the system will run longer trying to overcome the external heat flow. In summer, the time of the first cycle can increase by 30-40%.

The second critical factor is the volume and temperature of the loaded products. Starting an empty refrigerator will be faster than loading the chambers with warm food at room temperature. Heat transfer between warm objects and cold air requires huge energy costs. The larger the mass of products, the longer the motor will work.

• 🌡️ Room temperature: In a hot room (+30°C and above), the refrigerator may not turn off for days, working at the limit of its capabilities.
• 🥩 Temperature of products: Loading warm products requires selection of a large amount of heat, which delays the first cycle.
• 🚪 Frequency of door openings: If the doors are often opened during the initial cooling, cold air will evaporate, and warm air will flow inside, knocking down the sensor settings.

It is also worth considering design features. Two-chamber models with separate evaporators for each chamber (Full No Frost system) require time to cool both circuits. At the same time, single-compressor models with a weeping system may turn off faster, since the cold from the freezer gradually spreads into the refrigerator compartment.

Technological features of different cooling systems

The time of continuous operation is directly dictated by the type of defrosting and air circulation system. Let's look at how different types of equipment behave during the first start-up. Devices with manual defrosting (drip system) in the refrigerator compartment and in the freezer behave differently. Models with technology (full No Frost) are equipped with powerful fans that circulate air throughout all chambers. When turned on for the first time, the fan runs continuously and the compressor reaches full power. The peculiarity of such systems is that they often have longer operating cycles, but also longer pauses. However, the first cycle can take up to 10-12 hours due to the need to dry the air and cool the entire volume. No Frost They behave differently in the freezer.

Models with technology Total No Frost (full No Frost) are equipped with powerful fans that circulate air throughout all chambers. When turned on for the first time, the fan runs continuously and the compressor reaches full power. The peculiarity of such systems is that they often have longer operating cycles, but also longer pauses. However, the first cycle can take up to 10-12 hours due to the need to dry the air and cool the entire volume.

It is important to note the operation inverter compressors. Unlike classic ones, they do not have a rigid “on-off” cycle. After a strong start, they can switch to temperature maintenance mode, operating quietly and continuously. It may seem to the user that the refrigerator does not turn off, but in fact it simply works at minimum power, which is the norm.

Correct first-time switching procedure

To reduce the time it takes to reach operating mode and extend the life of the unit, it is necessary to strictly follow the first switching algorithm. Violation of these rules may result in the refrigerator working incorrectly or failing ahead of time.

The most important rule is to let the equipment “settle” after delivery. If the refrigerator was transported in a horizontal position or simply shaken strongly, compressor oil it could get into the refrigerant circulation circuit. It is necessary to wait at least 3-4 hours (or better yet a day) in a vertical position before connecting to the network.

After connecting to the network, do not rush to download products. Let the empty refrigerator run for 1-2 hours. This will allow the system to stabilize. Then you can start downloading, but do it in batches. Abruptly placing a large volume of warm food will cause thermostat keep the compressor on for a very long time.

Check the position of the doors and seals. If the door is skewed during installation, the cold will escape and the unit will run idle. Make sure that there is a gap between the back wall of the cabinet and the kitchen wall for ventilation, otherwise condenser it will overheat, reducing the cooling efficiency.

Fault symptoms: when it’s time to sound the alarm

Although long-term operation at first start-up is the norm, there are boundaries beyond which the breakdown is hidden. If the refrigerator hums for more than 24 hours without a single pause, and the temperature inside does not drop below +10...+15°C, this is a clear sign of a problem.

One ​​of the main symptoms is the lack of cold when the motor is running. You hear a hum, feel that the grille behind is warm, but it’s warm inside. This may indicate freon leak. There is no pressure in the system, the compressor circulates gas (or air if depressurization has occurred), but the refrigeration capacity is zero.

• 🧊 Ice coat: If a huge layer of ice builds up in the freezer, and there is heat in the refrigerator compartment, the defrost sensor or heating element may be faulty.
• 🔊 Extraordinary sounds: Knocking, gurgling or whistling in combination with continuous operation indicate problems with the valves or clogged capillary tube.
• 🔥 Overheating of the housing: If the side walls or rear grill are hot to the point where it hurts to touch, this is a sign of overload or problems with the refrigerant.

⚠️ Attention: Never try to open the circuit yourself or add freon without special equipment and a license. This is life-threatening and will completely disable the equipment.

Another alarm signal is frequent switching on and off (clocking) with an interval of 1-2 minutes. This may indicate a sticking start relay or problems with starting capacitor. In this case, the compressor cannot start fully and operates jerkily.

Questions and answers about the first start-up

In this section we have collected answers to the most common questions from users that arise in the first days of using new equipment. These clarifications will help you better understand the processes occurring inside your refrigerator.