How long should the refrigerator work the first time it is turned on before it automatically turns off?

Have you just bought a new refrigerator, connected it to the network, but it has been running for several hours without stopping? Is this normal or a sign of a problem? The question of How long should the refrigerator work when first turned on before turning it off?worries many owners. The answer depends on the type of model, the temperature in the room, and even whether the refrigerator is loaded with food.

In this article we will look at why a new refrigerator can work continuously from 2 to 24 hours, when this is considered normal, and when it is a cause for concern. You will also learn how to properly prepare the equipment for the first start, what factors influence the duration of the compressor operation and what to do if the refrigerator does not turn off for too long.

Why does a new refrigerator work without stopping?

The first time the refrigerator is turned on is always stressful for the equipment. The compressor needs not only to cool the internal space, but also bring the temperature of all surfaces to the operating level. Unlike repeated switching on, when the equipment simply maintains a given mode, at the first start the system operates in an enhanced mode.

The main reasons for long-term operation:

• 🔹 Heating of the seals and walls. The plastic and rubber parts of the refrigerator warm up to room temperature during transportation. The compressor takes time to cool them to +4...+6°C.
• 🔹 Factory mode. Many modern models (for example Samsung RB30A3200SA or LG GA-B489YQPL) automatically start the intensive cooling mode when turned on for the first time.
• 🔹 Room temperature. If the refrigerator is installed in a hot kitchen (+25°C and above), the compressor will have to work longer to reach the target +5°C in the chamber.
• 🔹 Lack of food. An empty refrigerator cools faster, but some models “think” that the door is often opened and continue to pump in cold.

Most manufacturers indicate in the instructions that The first compressor shutdown can occur after 8-12 hours is the norm for most household models. However, there are exceptions.

Norms of operating time before the first shutdown for different types of refrigerators

The time of continuous operation of the compressor when first turned on depends on type of cooling system the power of the model. Below is a table with indicative standards for popular categories:

Please note: inverter compressors (for example, in models Panasonic or Hitachi) work almost silently and can turn off earlier than usual. But refrigerators Side-by-Side due to their large volume often require a day for the first cooling.

⚠️ Attention: If your refrigerator belongs to the premium segment (for example, Liebherr or Miele), other standards may be indicated in the instructions. Check them in the documents for the model - some brands use unique algorithms for the first start.

What affects the duration of the first operating cycle?

Even for refrigerators with identical characteristics, the time until the first shutdown may differ. Here are the key factors that influence this:

• 🌡️ Room temperature. The hotter it is, the longer the compressor runs. At +30°C indoors, the cooling time can increase by 30–50%.
• 🚪 Door opening frequency. If you check how the cooling is progressing each time you open the refrigerator, the compressor will run longer.
• ❄️ Availability of products. A loaded refrigerator cools more slowly, but stabilizes the temperature faster after switching off.
• 🔌 Power supply quality. Voltage surges can disrupt the operation of the electronic unit, causing the compressor to work longer.
• 📦 Transportation and installation. If the refrigerator was transported lying down or did not wait 2-4 hours before turning on, the refrigerant may be distributed unevenly, which will increase the cooling time.

Interesting fact: some refrigerators with the system No Frost (for example, Beko or Indesit) when first turned on, they start the mode Super Cooling, which forcibly keeps the compressor on for up to 24 hours. This is not a breakdown, but a feature of the firmware.

Make sure that the door is tightly closed

Check the room temperature (not higher than +25°C)

Do not open the refrigerator in the first 6 hours

Leave space for ventilation (5–10 cm from the walls)

Connect to the network through a stabilizer (if there are voltage surges)-->

When to worry: signs of malfunction

Although long-term operation when first turned on is the norm, there are situations that should raise concern. Pay attention to the following signs:

• 🔴 The compressor has been running for more than 24 hours no shutdown, and in the refrigerator compartment the temperature is above +8°C.
• 🔴 Extraordinary sounds are heard: knocking, humming, clicking (except for the normal fan noise in the No Frost).
• 🔴 The case gets very hot (it's hot not only at the back, but also on the sides).
• 🔴 The display shows an error (for example, E1, F2 or the temperature indicator is flashing).
• 🔴 The freezer is covered with ice, but the refrigerator compartment remains warm (or vice versa).

If at least one of these signs is present, you need to disconnect the refrigerator from the network and call a technician Possible. reasons:

• Leak of refrigerant (freon).
• Malfunction of the thermostat or temperature sensor.
• Problems with the electronic control unit.
• Factory defect of the compressor.

⚠️ Attention: If the refrigerator was purchased less than 14 days ago, do not try to repair it yourself - this may void your warranty. Contact the brand's service center (Samsung, LG, Atlant etc.) for diagnostics.

What to do if the refrigerator does not turn off for more than a day?

If the refrigerator has been running for more than 24 hours and the temperature in the chambers does not drop to normal:

1. Disconnect it from the network for 10-15 minutes, then turn it on again.

2. Check if it is turned on. "Super Freeze" mode (Super Freeze) or "Quick Cooling" (Fast Cool).

3. Make sure that the door seal is not damaged and there are no cracks.

4. If the problem persists, call a specialist. There may be a freon leak or a compressor malfunction.

How to properly prepare the refrigerator for the first start-up?

To ensure that the first start-up goes without problems, follow these step-by-step instructions:

1. Let the refrigerator settle.

   After transportation (especially in horizontal position) wait 2–4 hours before turning on. This is necessary so that the refrigerant is evenly distributed throughout the system.

2. Install the refrigerator level.

   Use a building level to level the equipment. Uneven installation may result in improper operation of the compressor and increased cooling time.

3. Ensure ventilation.

   The distance to walls and furniture should be at least 5–10 cm. Otherwise, the compressor will overheat and the cooling cycle will be delayed.

4. Adjust the temperature.

   Install in the refrigerator compartment +4…+5°C, in the freezer - –18°C. Do not turn on modes Super Cool or Holiday when first starting.

5. Do not load food immediately.

   Wait until the compressor turns off for the first time (usually 6-12 hours), and only then start filling the refrigerator.

If you bought a refrigerator with No Frost system, after the first shutdown of the compressor you may hear a fan noise - this is normal. In models Samsung or LG it can work for another 10-15 minutes to evenly distribute the cold.

Frequent errors when turning on for the first time

Many users unintentionally lengthen the time of the first cycle of operation of the refrigerator. Here are the most common errors:

• 🚫 Switching on immediately after delivery.

  The refrigerant does not have time to return to its original state, and the compressor runs idle, not cooling the chambers.

• 🚫 Installation close to a wall or furniture.

  Overheating the compressor makes it work longer, and in some cases can lead to an emergency shutdown.

• 🚫 Frequent opening of the door.

  Every time you check how the cooling is going, warm air gets in and the compressor has to start over.

• 🚫 Loading warm products.

  If you put, for example, hot soup into a refrigerator that has just been turned on, the temperature inside will rise and the compressor will work in increased mode.

• 🚫 Ignoring the instructions.

  Some models (for example, Bosch KAN92VI30R) require preliminary configuration before turning on for the first time. If this is not done, the cooling time may increase.

By avoiding these mistakes, you will reduce the time of the first cycle of operation of the refrigerator by 20-30% and extend the life of the compressor.

What to do if the refrigerator still does not turn off?

If more than a day has passed and the compressor is still running, follow these steps:

1. Check the temperature in the chambers.

   Use separate thermometer. If the refrigerator compartment is below +5°C and the freezer is -18°C, but the compressor does not turn off, the thermostat may be faulty.

2. Disconnect the refrigerator for 15 minutes.

   Sometimes the electronic unit needs to “reboot”. After turning it on again, listen: if the compressor immediately starts working at full power, this may indicate a freon leak.

3. Check the seal.

   Place a sheet of paper between the door and the housing. If it falls out or is easily pulled out, the seal allows air to pass through and the compressor runs idle.

4. Contact service.

   If independent measures do not help, call a technician. In most cases, the problem is solved under warranty.

⚠️ Attention: Do not try to disassemble the refrigerator yourself, especially if it is under warranty. Modern models (Samsung, LG, Atlant) have complex electronics, and unqualified intervention can lead to complete failure.

FAQ: Answers to frequently asked questions

How long should a No Frost refrigerator work at first turning on?

Refrigerators with a system No Frost (for example, Samsung RB37J5230SS or Indesit ITF 118 W) when turned on for the first time can work from 8 to 16 hours without shutting down. This is due to the fact that fans evenly distribute the cold throughout the chambers, and the compressor maintains intensive mode. If after this time the temperature in the refrigerator compartment drops to +4...+6°C, and in the freezer - to -18°C, there is no need to worry.

Why does the new refrigerator work for 24 hours and does not turn off?

There are several reasons:

• 🔹 The refrigerator has a large volume (for example, Side-by-Side 500+ liters).
• 🔹 The room temperature is high (+28°C and above).
• 🔹 The mode is on Super Cooling or Fast Freeze.
• 🔹 The thermostat or temperature sensor is faulty.

If after 24 hours the temperature in the chambers is normal and there are no errors on the display, most likely this is a feature of the model. If the refrigerator does not cool, contact the service.

Is it possible to put food in the refrigerator if it has not yet turned off?

It is better to wait until the compressor turns off for the first time (usually 6-12 hours). If you urgently need to put food in:

• 🔹 Use only chilled (not hot!) products.
• 🔹 Do not load the refrigerator completely - leave space for air circulation.
• 🔹 Avoid opening the door in the first 3-4 hours after loading.

Keep in mind that loading food may increase the first cycle time by 2-4 hours.

Is it normal for the refrigerator to turn off only after 18 hours?

For some models - yes. For example, refrigerators Side-by-Side (Samsung RS68N8941SL) or two-compressor (LG GA-B429SEGL) can work up to 18–24 hours when first turned on. The main thing is that:

• 🔹 The temperature in the chambers corresponds to the norm (+4...+6°C and -18°C).
• 🔹 There were no errors on the display.
• 🔹 The compressor turned off on its own (without forced shutdown from sockets).

If all the conditions are met, there is no need to worry.

What will happen if you turn off the refrigerator from the outlet during the first cycle?

Nothing critical, but:

• 🔹 When you turn it on again, the compressor will again need time to cool (possibly even more than the first time).
• 🔹 If the refrigerator is electronically controlled (Samsung, LG), a sudden shutdown may disrupt the settings.
• 🔹 In models with No Frost the operation of the fans may be temporarily disrupted.

If you do turn off the refrigerator, wait 5-10 minutes before turning it on again.