Buying a new refrigerator is always a joyful event, marking the renewal of household appliances in the kitchen. However, when the large unit is finally delivered to the doorstep of the apartment, a logical and critically important question arises: is it possible to immediately plug it into the network or do you need to wait a certain time?
Many owners, wanting to quickly enjoy the cold in the chambers, make the mistake of starting the compressor immediately after unpacking. Safety precautions and the physics of the operation of refrigerants dictate their conditions, ignoring which can lead to expensive repairs.
In this article we will look in detail at why the pause before the first start is so important, what determines the downtime and how to properly prepare the device for operation depending on the transportation conditions.
The main reason for the need to wait lies in compressor —the heart of the refrigeration unit. During transportation, especially if the equipment was tilted or shaken, oil from the compressor could flow into the piping system or into the discharge chamber itself.
If you turn on the motor immediately, it will try to compress the liquid (oil or refrigerant in the liquid phase), which will cause water hammer. This phenomenon often leads to jamming of the piston group or rupture of the valves. Refrigerant must completely drain back into the compressor, and the oil should take its place.
⚠️ Attention: Even if the refrigerator was transported strictly vertically, vibrations when the truck moved could cause the oil to foam and migrate through the tubes. The risk of breakdown upon immediate switching on always remains.
In addition, if delivery took place in winter at sub-zero temperatures, a sudden start can damage plastic parts and seals due to temperature changes and loss of elasticity of materials.
Factors influencing the settling time
There is no single number that is suitable for absolutely all cases. The time that you need to wait before turning on for the first time directly depends on several key factors.
First of all, it is taken into account position during transportation. If the unit was transported in a vertical position, the standing time is minimal. If the equipment was lying on its side, the process of draining the oil takes much longer.
The second important factor is ambient temperature. Winter delivery makes its own adjustments: cold air thickens the oil, slowing down its movement through the system. In summer, this process occurs faster due to the lower viscosity of technical fluids.
The third aspect is the type refrigerant and design of the compressor. Modern inverter models may have different requirements from classic units, although the basic principles of physics remain the same for all types of equipment.
It is also worth considering the duration and intensity of shaking. Delivery by a truck with air suspension on a flat highway and transportation by Gazelle on broken roads create different degrees of vibration impact on internal components.
How long to wait: depending on the season and location
To systematize the recommendations, it is convenient to consider specific delivery scenarios. Manufacturers of household appliances, such as Liebherr, Bosch or Indesitusually indicate general recommendations in the instructions, but experienced craftsmen advise adhering to time-tested standards.
In the summer, when the air temperature is above zero, the processes of restoring the normal state of the refrigerant and oil are naturally faster. However, haste is still unacceptable.
Winter delivery requires increased caution. You need to bring a frozen unit into a warm room very carefully, avoiding sudden movements that can lead to the formation of condensation inside the electronic units.
| Transportation conditions | Settlement time (Summer) | Settlement time (Winter) |
|---|---|---|
| Vertical, without shaking | 2–4 hours | 4–6 hours |
| On the side (up to 30 minutes on the road) | 6–8 hours | 10–12 hours |
| On the side (long-term transportation) | 12 hours | 24 hours |
| Strong shaking, tilting | 12–24 hours | 24+ hours |
Please note that the specified time intervals are the minimum required to stabilize the system. If you can wait longer, this will only benefit the device.
Rules for winter operation and acclimatization
The scenario when the refrigerator is delivered in cold weather deserves special attention. In this case, not only the oil migration factor comes into play, but also the risk of condensation formation.
When you bring a cold unit into a warm apartment, moisture instantly emerges from the air on its surfaces, including internal cavities and electrical contacts. If you turn on the equipment right away, a short circuit may occur.
In addition, at low temperatures, the oil in the compressor becomes thick, like fuel oil. Starting the engine with thick oil is equivalent to running the engine without lubrication in the first seconds, which causes critical wear of the rubbing parts.
⚠️ Attention: It is strictly forbidden to speed up the acclimatization process with the help of heaters, hair dryers or heat guns. Sudden heating can deform plastic elements and damage the varnish coating of the motor windings.
After bringing the refrigerator into the room, let it stand turned off for at least 4-6 hours, even if it was transported vertically. This time is necessary to equalize the temperature of all components with room temperature and evaporate the condensate.
Only after complete drying and warming up can you begin further manipulations. Remember that electronic control module is also sensitive to moisture, and its failure is often associated with condensation.
What to do if the refrigerator froze on the road?
If the temperature was below -10°C, and there was food or ice left inside, do not try to defrost it forcibly. Let it thaw naturally while turned off. Check the doors - they might have frozen to the body.
Step-by-step instructions: preparing for the first start
The required time has passed, the unit has warmed up and dried out. Now it is important to correctly perform the sequence of actions before pressing the power button. Chaotic actions can negate all previous precautions.
First you need to remove all shipping packaging: cardboard, polystyrene foam, tape. Pay special attention to the inside - often there are retaining tapes or inserts that can block the operation of drawers or doors.
Next, you should remove the protective film from the internal and external surfaces. Plastic left on shelves or doors may interfere with normal air circulation and system operation No Frost.
☑️ Preparing for first start-up
An important step is to install the refrigerator level. Use adjustable feet to ensure the unit is stable and tilts slightly backwards. This will ensure automatic closing of the doors and proper operation of the seals.
Check that the distance to walls and furniture meets the requirements of the instructions (usually 5–10 cm) for normal ventilation of the condenser. After this, you can connect the power cord to a separate outlet with grounding.
Typical errors when turning on for the first time
Even knowing the theory, users often make practical mistakes that shorten the lifespan of the device. One of the most common is loading food immediately after turning it on.
Remember: an empty refrigerator gains temperature faster and is safer for the compressor. Loading the chambers with warm or room temperature products in the first hour of operation will force the motor to work at its limit, trying to cool a large volume.
Another mistake is the use of extension cords and tees. A refrigerator is a powerful consumer of energy with inrush currents. Connecting through a low-quality extension cord can lead to overheating of the contacts, a voltage drop and unstable operation of the compressor.
Some users try to “check” the operation of the equipment by opening the doors every 10 minutes. You shouldn't do this. Allow the system to enter mode, start the defrost cycle (if it is No Frost) and stabilize the pressure in the circuit.
⚠️ Attention: If, after turning on, you heard a loud knock, clanging or saw sparking in the compressor area, immediately disconnect the device from the network. Restarting is possible only after diagnosis by a specialist.
It is also a mistake to ignore the smell of plastic. During the first hours of operation, a new refrigerator may emit a specific odor - this is normal, as technical lubricants and materials evaporate. But if the burning smell is strong, the equipment needs to be turned off.
Normalization of operation and temperature conditions
After the refrigerator is turned on, the process of reaching operating mode begins. Don't expect instant cooling - modern automation works gradually to avoid stress on the system.
The first cooling cycle can last from 2 to 6 hours depending on the volume of the chambers and the ambient temperature. At this time, the compressor can work without stopping - this is a normal situation for the initial start-up.
Modern models with inverter compressors will gradually increase speed, while classic units will work cyclically: turned on, cooled, turned off. Both options are normal.
It is best to control the temperature using a separate thermometer placed on a shelf, since standard indicators may show average or inaccurate data on the first day.
Monitor the formation of ice in models with a drip system or the operation of the fan in the No Frost system. The absence of noise, vibration and foreign odors after several hours of operation indicates a successful launch.
Is it possible to transport a refrigerator lying down if there is no other option?
It is possible to transport it lying down, but it is risky. It is imperative to maintain an inclination angle of no more than 40 degrees, and after delivery, allow the unit to stand for at least 24 hours. The oil should completely return to the compressor crankcase.
What to do if the refrigerator was turned on immediately after delivery?
If a little time has passed and the equipment is working normally, watch it. If you hear knocking or overheating, turn it off and let it sit. If the compressor has already failed, only replacement or repair will help.
Do you need to wash the refrigerator before first use?
Yes, definitely. Wipe all internal surfaces with a weak solution of soda or a special household appliance cleaner to remove factory dust and odors.
Why does the refrigerator hum after the first turn on?
A slight hum or gurgle is normal (refrigerant circulation). A strong hum, rattling or knocking indicates incorrect installation (the legs are not adjusted) or damage during transportation.
How long does the compressor work when first started?
When turned on for the first time, the compressor can operate continuously for up to 8 hours until it cools the entire volume of the chambers and reaches a temperature reserve. Don't be alarmed if it doesn't turn off for a long time.