Buying a new refrigerator is always a joyful event, marking the renewal of household appliances in the kitchen. However, after the unit is delivered to the apartment, a critical question arises: when can it be connected to the network? Many owners, wanting to quickly enjoy the cold or check the operation compressor, make the mistake of starting the device immediately after unpacking.
Ignoring the rules for initial startup can lead to serious technical problems, even failure of expensive components. In this article, we will analyze in detail why time is needed for acclimatization, how the method of transportation affects this period, and what needs to be done before turning it on for the first time.
Why you can’t turn on the equipment right away: physical processes
The main reason for the ban on instant start lies in the design of the refrigeration system. Inside compressor there is a special oil that provides lubrication of rubbing parts and seals gaps. During transportation, especially if the unit was tilted or shaken, this oil could move from the crankcase to the cooling system circuits.
If you turn on the motor immediately, it will begin to run dry, which will lead to rapid wear and possible jamming. Moreover, the oil in the heat exchanger (evaporator or condenser) creates an oil plug that prevents circulation refrigerant. The pressure in the system will increase sharply, and the compressor may burn out in a matter of minutes of operation.
⚠️ Attention: An attempt to start the refrigerator with oil that has entered the system can lead to irreversible damage to the compressor. The warranty in such cases is often not valid, since this is a violation of the operating rules.
The second important factor is the temperature difference. If the refrigerator was delivered in winter, sudden switching on of the heating elements and compressor will cause condensation to form inside the electrical circuits. Moisture may cause a short circuit. That is why acclimatization is necessary not only for mechanics, but also for electronics.
What happens to the oil when tilted?
When the refrigerator is tilted by more than 40 degrees, oil from the compressor can flow into the system circuits. If the tilt was slight, the oil remains in the crankcase, but is agitated. In both cases, it takes time for gravity to return the liquid to its original position.
The influence of the method of transportation on the waiting time
The period after which it is allowed to turn on the refrigerator directly depends on the position in which it was transported. Logistics companies and manufacturers clearly regulate transportation conditions, and deviation from them increases downtime.
When transported in a vertical position, the risk of oil getting into the system is minimal. However, even in this case, vibration occurs, which can disrupt the uniform distribution of the lubricant. In such a situation, it is enough to let the equipment stand alone for 2-3 hours. This time is enough to calm down refrigerant and stabilize the pressure.
The situation changes dramatically if the refrigerator was transported lying down. In a horizontal position, oil is almost guaranteed to flow into the evaporator tubes. Here, gravity takes much longer to return the liquid back to the compressor. The minimum settling time in this case is 8 hours, or better - a full day.
- 🚚 Vertical transportation: it is recommended to wait from 2 to 4 hours.
- 🛌 Horizontal transportation: requires from 8 to 24 hours of rest.
- ❄️ Winter transportation: add 2-3 hours to the standard time to equalize temperatures.
- 🌡️ Sharp change temperatures: if the equipment is brought in from the cold, wait until the case is completely warmed up.
Winter transportation: risk of condensation
The operation of equipment purchased in the cold season requires special attention. When you bring a refrigerator from a frost into a warm room, condensation begins to form on its surfaces, and more importantly, inside the electronic components. Water is an excellent conductor of electricity, and its presence on the contacts of control boards is fatal.
Modern models are equipped with complex electronics, inverter compressors and systems No Frost. All these components are sensitive to humidity. If you turn on a device that is covered from the inside with microscopic drops of moisture, a short circuit may occur, which will disable the control unit.
It is necessary to allow the device to warm up to room temperature naturally. Do not use hair dryers or heaters to speed up the process - sudden heat can damage plastic elements and seals. Just leave the refrigerator in the room without plugging it in.
⚠️ Attention: Do not try to speed up the drying of the internal components with a hairdryer. Hot air can deform plastic parts and damage the insulation of wires.
Experts recommend increasing the exposure time by 1 hour for every 5 degrees of temperature difference between the street and the room. This will help avoid problems with electronics and ensure a safe start.
Differences in the type of cooling system
Not all refrigerators are the same, and the requirements for their first start-up may differ depending on the design. Understanding your system type will help you avoid mistakes. The main differences relate to the drip defrosting system and technology No Frost.
Models with a drip system (crying evaporator) are simpler in design. In them, oil is less likely to get into hard-to-reach places, but the risk of it leaking out during a strong tilt remains. The standard time frames described above apply to them.
Refrigerators with a system No Frost have a more complex air circulation system and additional fans. They use more connections and tubes where oil can theoretically leak into. In addition, such models often have more powerful and sensitive inverter compressors, which extremely do not like running dry.
| Refrigerator type | After vertical transportation | After horizontal transportation | Features |
|---|---|---|---|
| Single-compressor (Drip) | 2-3 hours | 8-12 hours | Less sensitive to oil |
| Two-compressor | 3-4 hours | 12-18 hours | Two circuits, higher risk |
| No Frost (Fan) | 3-4 hours | 12-24 hours | Complex system, sensitive |
| Inverter | 4 hours | 24 hours | High accuracy, expensive replacement |
Manufacturers in the instructions for the model Liebherr or Atlant can indicate their recommendations, which take precedence over the general rules. Always check the device data sheet.
Step-by-step instructions: preparing for the first start
The process of preparing a new refrigerator for operation requires consistency. Skipping any step can negate all efforts to preserve the equipment. First, you need to unpack the unit, remove all shipping materials, tape and foam inserts.
Next, install the refrigerator on a flat surface. Use a building level to check. The refrigerator legs should be adjusted so that the door closes on its own when opened to 45 degrees. This will ensure proper operation of the seal and cooling system.
☑️ Checklist before turning on
After the required time for settling has passed, you can proceed to connection. Insert the plug into a grounded outlet. Do not use extension cords or tees as the compressor starting current may be high. Let the refrigerator run empty for 2-3 hours so that it reaches the desired temperature.
Only after the unit has run empty and reached the set temperature, can you start loading food. Load them gradually so as not to create a sudden thermal load on the compressor.
⚠️ Attention: Make sure that the outlet into which you plug in the refrigerator is working and grounded. Using unreliable power supplies can cause damage to electronics.
Common errors when first turned on
Even knowing the rules, users often make common mistakes. One of the most common is an attempt to speed up the cooling process by setting the thermostat to maximum immediately after turning it on. This creates a colossal load on the motor, which has not yet reached operating mode.
Another mistake is ignoring the burning smell in the first minutes of operation. When the factory lubricant is heated for the first time, a slight odor may appear on the heating elements or evaporator. This is normal, but if the smell is strong or does not go away after an hour, the equipment must be turned off immediately.
Also, users often forget to remove the shipping bolts (if they are on the compressor of some industrial models) or fixing tapes on the doors, which leads to damage to the seals during the first attempt to open.
Remember that proper initial operation is the key to long service life your refrigerator. Compliance with time intervals and safety rules will help to avoid costly repairs in the future.
Why is a new refrigerator humming?
A humming sound in the first hours of operation is normal. The compressor runs at full power to cool the empty chamber. The sound of gurgling refrigerant may also be heard.
Is it possible to transport a refrigerator lying down if there is no other option?
Technically it is possible, but this is a risk. If you are transporting it lying down, be sure to pack it in foam and blankets. Once delivered, allow it to stand upright for at least 12-24 hours before turning it on. This is critical for the oil to drain.
What should I do if I turned on the refrigerator immediately after delivery?
If little time has passed (minutes), immediately turn it off from the network. Let it stand for as long as it would stand according to the rules (at least 4-8 hours). If it has already worked for several hours, observe its behavior: is there a strong knocking sound, is the motor housing heating up excessively.
Do you need to wash a new refrigerator before turning it on?
Yes, definitely. Inside there may be remnants of factory dust, the smell of plastic or grease. Wipe all surfaces with warm water and a mild detergent or baking soda solution. Let the chambers dry before turning them on.
Why doesn’t the refrigerator freeze in the first hours?
A new refrigerator takes time (from 2 to 6 hours) to get into operation for the first time. During this time, the compressor can operate without interruption. Do not open the doors often during this period, so as not to disturb the cooling process.