Purchasing a new refrigerator is always a joyful event, marking an update to kitchen appliances and improved food storage conditions. However, immediately after the unit is delivered to the kitchen, a logical and very important question arises: when can you start using it? Many owners make the mistake of thinking that they can simply plug the cord into an outlet and immediately fill the shelves with food. This opinion is erroneous and can lead to serious damage to the compressor or a reduction in the service life of the device.
The waiting time before the first turn on directly depends on how exactly the equipment was transported. If the refrigerator was transported in an upright position, the timing is the same, but if the transportation was carried out lying down, it is completely different. Compressor oil it should return to its normal place, and the refrigerant should be evenly distributed throughout the system. Ignoring these physical processes is fraught with water hammer and failure of an expensive component.
In this article we will analyze in detail all the nuances of preparing equipment for work, consider the differences between models with different types of compressors and give clear recommendations for the first start-up. Following simple rules will allow you to avoid costly repairs and enjoy the ideal operation of refrigeration equipment for many years.
Why you cannot turn on the refrigerator immediately after delivery
The main reason for the ban on instant start lies in the design features of the refrigeration unit. During transportation, especially if it occurred in a horizontal position, compressor oil leaks out of the compressor crankcase and enters the refrigerant circuit. If you turn on the engine at this moment, it will begin to run “dry,” which will lead to rapid wear of the rubbing parts and possible jamming.
In addition, oil that gets into the capillary tube or evaporator creates a so-called “oil jam.” The compressor will try to push the refrigerant, experiencing enormous overload. In the best case, the thermal protection relay will work and the unit simply will not start. In the worst case, the electric motor winding will burn out or the cooling system tubes will rupture.
⚠️ Attention: An attempt to start the refrigerator immediately after horizontal transportation without settling may lead to denial of warranty service. Service centers can easily determine this cause of failure by the condition of the compressor.
Another factor is temperature. If delivery was carried out in winter at sub-zero temperatures, the cold air could preserve moisture inside the electronic components and on the contacts. Sudden heating when turned on may cause short circuits or corrosion of the contacts. That is why the equipment must be given time not only to “settle”, but also to warm up to room temperature.
How long a refrigerator should sit, depending on transportation
The time after which you can put food in a new refrigerator varies depending on the position of the body during transportation. This is a key parameter that determines the duration of the pause before the first switch on. Equipment manufacturers indicate this data in the instructions, but there are general rules that are relevant for most models.
If the refrigerator was transported in vertical position (standing), and the tilt angle did not exceed 40 degrees, then the process of oil spreading is minimal. In this case, it is enough to let the equipment stand for 2 to 4 hours. This time is enough for the microscopic drops of oil that got into the tubes to flow back into the crankcase, and the refrigerant is stabilized.
The situation changes dramatically if the unit was transported lying. In this position, oil is guaranteed to flow into the cooling circuit. Here the waiting time increases significantly. The minimum period is 8 hours, but experts recommend keeping the equipment in an upright position for up to 24 hours. This is the only way to be sure that the entire system is free of oil plugs.
Models with inverter compressorsdeserve special attention. They are more sensitive to the quality of the lubricant and the uniformity of freon distribution. For such devices, especially premium brands like Liebherr or LG, it is better to increase the settling time to the maximum, even if the transportation was vertical. This will extend the life of an expensive motor.
The influence of the type of compressor on the first start-up time
The type of installed compressor plays an important role in determining the preparation time. Modern refrigerators can be equipped with conventional linear compressors or more modern inverter models. The difference in their design dictates different approaches to the first launch.
Ordinary ones linear compressors are more “omnivorous” and forgive small errors in operation. They work on the principle of switching on and off, creating certain loads on the system at startup. For them, the presence of oil in the crankcase at the time of start is critical. If there is no oil, the piston group will quickly fail. Therefore, for such models, compliance with settling time intervals is a strict necessity.
Inverter compressors work differently: they do not turn off completely, but only change the shaft rotation speed. This ensures smooth running and less wear, but makes the system more sensitive to circuit cleanliness and lubricant quality. Oil getting into the heat exchanger can disrupt heat transfer, which will lead to incorrect operation of the sensors and failures in the control electronics.
| Compressor type | Minimum settling time (vertical) | Minimum settling time (horizontal) | Sensitivity to oil |
|---|---|---|---|
| Linear (regular) | 2-4 hours | 8-12 hours | High |
| Inverter | 4-6 hours | 12-24 hours | Very high |
| Combined (two motors) | 4 hours | 12 hours | High |
| No Frost (any type) | 4 hours | 12 hours | Medium/High |
It is worth noting that No Frostsystems, regardless of the type of compressor, have a more complex system of air ducts and fans. Although oil gets into them less often due to the design of the evaporator, it’s not worth the risk. Long exposure ensures that no oil vapors enter the ventilation system, which could reduce the cooling efficiency.
First launch: step-by-step instructions
After you have maintained the required settling time, you cannot simply load the shelves with products. There is a correct first start-up algorithm that will allow the equipment to reach operating mode without overload. Violation of the sequence of actions can lead to the fact that the refrigerator will take a long time to gain temperature or operate with increased noise.
First of all, it is necessary to free the internal space from packaging materials, tape and protective films. Then wipe the internal chambers with a damp cloth and a mild detergent. This will remove factory dust and possible smell of new plastic. After washing, the doors should be left open for complete drying and ventilation.
☑️ Preparation for the first start
Only after preparing the chambers can the refrigerator be connected to the electrical network. It is important to ensure that the outlet is grounded and meets the wattage requirements. After switching on, do not open the doors for several hours. Allow the unit to idle until it reaches the set temperature and shuts down (or goes into maintenance mode) for the first time.
⚠️ Attention: Do not try to speed up the cooling process by setting the thermostat to maximum when you first turn it on. This will place excess load on the compressor. Leave the factory settings or the average value.
When can you load food: filling rules
The most common question from users: how long after you can put food in a new refrigerator after turning it on? The answer depends on how well the unit has reached temperature. It is too early to load the equipment immediately after it first clicks and turns off. The internal air volume should stabilize.
The optimal time for the first load is after 2-4 hours of operation of the empty refrigerator. By this point, all the shelves and walls have already cooled down, and the thermostat has recorded the desired temperature. If you load warm food into a refrigerator that has just been turned on, the compressor will work without stopping, trying to cool a large volume, which can lead to overheating.
Food should be placed evenly, without tightly clogging the ventilation holes (if this is a No Frost model). Air should circulate freely between bags and boxes. On the first day, it is not recommended to load the refrigerator to capacity. It is better to fill it gradually, allowing the compressor to cope with the thermal load.
Is it possible to speed up the cooling before loading?
Some users place bowls of cold water inside. This should not be done: the water may splash, and the effectiveness of this method is questionable. It’s better to just wait an extra hour for the empty chamber to work.
Pay special attention to the temperature of the food. Never place hot or warm food in a new refrigerator that has just been opened. This will disrupt the temperature regime and make the equipment work for wear. All products must be cooled to room temperature before being placed on shelves.
Typical mistakes when operating a new refrigerator
Even knowing the rules, many users manage to make a number of typical mistakes that shorten the life of the equipment. One of the most common is ignoring the installation level. If the refrigerator is positioned crookedly, the doors may not close tightly, or the compressor may vibrate. Be sure to use a building level and adjustable legs to set the horizon.
The second mistake is installing the refrigerator close to a wall or furniture. For effective heat exchange, the rear grille (condenser) requires air flow. The minimum distance from the back wall to the wall of the room should be at least 5–10 cm, and on the sides - at least a couple of centimeters.
The third mistake is related to defrosting. If you bought a refrigerator with manual defrosting (drip system), do not expect a thick crust of ice to form. You need to defrost regularly, as frost forms 3-5 mm thick. Ignoring this rule leads to increased energy consumption and deterioration in cooling quality.
It is also worth mentioning the error in choosing the installation location. Do not place the new refrigerator near heat sources: radiators, stoves, or in direct sunlight. This will force the compressor to work almost without interruption, which will quickly lead to its exhaustion.
Frequent questions and answers (FAQ)
What happens if I turn on the refrigerator immediately after horizontal transportation?
There is a high probability of water hammer: the oil that gets into the circuit will not have time to drain, and the compressor will will try to compress an incompressible fluid. This can lead to valve failure or motor winding burnout. It is also possible that oil can get into the system, which will sharply reduce the cooling efficiency.
Does it need to be washed in a new refrigerator before first use?
Yes, definitely. Factory dust, plastic particles and the smell of new equipment may remain inside. Wipe all surfaces with a weak solution of soda or a mild detergent, then dry thoroughly.
Is it possible to transport a refrigerator at sub-zero temperatures?
You can transport it, but you cannot turn it on right away. After being brought into a warm room, the refrigerator must remain turned off for at least 24 hours (preferably more) in order to warm up to room temperature and evaporate condensation from the contacts.
Why does a new refrigerator run loudly in the first hours?
This is normal. When first started, the system is filled with refrigerant and the compressor runs at full power to cool the empty volume. The sound of freon gurgling may also be heard. After a few hours of operation, the noise should decrease to normal levels.
How long before you can put food in the No Frost refrigerator?
For No Frost models, the rules are the same: after vertical transportation - after 4 hours, after horizontal transportation - after 12-24 hours. You can load food only after the refrigerator has been empty for 2-3 hours and has reached the set temperature.