After purchasing a new household appliance or moving it to another apartment, the owners have a natural and very important question: how much should it cost? refrigerator before turning on? It would seem that it would be simpler - unpack it, plug it into an outlet and enjoy the cold. However, haste in this matter can be fatal for expensive equipment. The compressor, which is the heart of the refrigeration unit, requires time to stabilize internal processes after shaking and changing position.
The main reason for the need to wait lies in the design of the compressor and the properties of the refrigeration oil. During transportation, especially if the unit was tilted or placed on its side, oil could flow from the compressor crankcase into the cooling system circuit - into the condenser or evaporator. Oil jam in small diameter tubes it can completely block the circulation of freon, which will lead to overheating of the motor and its early failure.
In addition, a sudden start can damage the mechanical parts of the compressor that were subject to vibration. If you want your equipment Indesit, Bosch or LG to serve for decades, you must strictly observe rest periods. Ignoring this stage often becomes the reason for refusal of warranty service, since service centers easily determine violation of operating rules by the condition of the compressor.
Physics of the process: why you can’t turn it on right away
To understand the need for a pause, you need to understand the structure of the compressor. This is a sealed unit, in the lower part of which there is oil that lubricates the rubbing parts. When transporting on rough roads or when skidding up stairs, the oil gets agitated and can get into the discharge tube. If you turn on the unit immediately, the compressor will start to run “dry” or try to push through a hydraulic plug of viscous oil.
Hydraulic hammer is a phenomenon when liquid (in this case oil) enters the compressor cylinder, where only gas should be compressed. The fluid does not compress, and the resulting pressure can break the valves or piston group. Even if the breakdown does not occur instantly, the engine life will be reduced significantly. The oil should simply drain back into the crankcase under the influence of gravity.
⚠️ Attention: Do not try to speed up the process by tilting the refrigerator in different directions or knocking on the body. This can drive the oil even deeper into hard-to-reach areas of the system, from where it cannot return by gravity.
It is also worth considering the temperature factor. If the refrigerator was brought in from the cold, condensation could form inside it. Moisture on electrical contacts when voltage is applied will cause a short circuit. Therefore, settling time is needed not only for oil, but also to evaporate moisture and equalize the temperature of internal components to room temperature.
Dependence of settling time on season and temperature
The time how long the refrigerator should stand before turning on directly depends on the ambient temperature at which it was located before installation. The physical properties of oil change at different temperatures: in cold weather it thickens, and in warm weather it becomes more liquid. Accordingly, the time it drains back into the crankcase will be different.
In the summer, when the air temperature is high, the oil has a low viscosity. It drains faster, and processes within the system are stabilized in a shorter time. However, even in summer you should not neglect the minimum waiting time, since the oil could splash throughout the entire pipeline system, and not just come out of the crankcase.
The winter situation requires much more caution. If equipment was transported at subzero temperatures, the oil froze and became very viscous. It takes much longer for it to warm up to room temperature and drain down. An attempt to start a cold compressor with thickened oil is guaranteed to lead to its breakdown.
There is also the concept of acclimatization. A sharp temperature change (for example, moving from -10°C to a room of +25°C) causes abundant condensation not only outside, but also inside electronic boards and wire insulation. Condensation is the main enemy of electronics. Therefore, even if the oil is already glass, there is no need to rush to turn it on.
The influence of the transportation method on the waiting time
An important factor is how exactly your refrigerator was transported. Manufacturers categorically do not recommend transporting equipment lying down, but in reality, especially when ordering movers or moving in a passenger vehicle, this rule is often not followed. The position of the unit during transportation dictates its settling time conditions.
If the refrigerator was transported in a vertical position and the tilt angle did not exceed 40 degrees, the risk of oil getting into the circuit is minimal. In this case, the waiting time can be reduced to the minimum necessary only to stabilize the refrigerant and temperature equalization. However, if the shaking was strong, it is better to play it safe.
Transportation lying down is an extreme scenario. In this position, oil is guaranteed to flow into the heat exchanger. Here, gravity has a long job to do to return the liquid to its place. If you turn on such a refrigerator right away, you will hear loud knocks or a hum, after which the unit may simply stop cooling.
☑️ Correct transportation
It is worth noting that modern inverter compressors, which are often found in models Samsung and LG, are more sensitive to the quality of lubrication and cleaner system than older linear models. Violation of transportation rules is more critical for them. Therefore, for appliances with an inverter motor, it is better to increase the rest time.
Table: recommended standstill time
For the convenience of users, we have systematized data on how long the refrigerator should stand in various conditions. These recommendations are average, but their compliance guarantees the safety of the first launch.
| Transportation conditions | Season / Temperature | Recommended settling time | Risk in case of violation |
|---|---|---|---|
| Vertical, without shaking | Summer / Warm | 2 - 4 hours | Low |
| Vertical, strong shaking | Any time | 4 - 6 hours | Medium |
| Horizontal (lying) | Summer / Warm | 8 - 12 hours | High |
| Horizontal (lying down) | Winter / Cold | 24 hours (day) | Critical |
| After defrosting/washing | Any time | 4 - 6 hours | Average (SC) |
Pay attention to the last line of the table. If the refrigerator was not transported, but simply washed or defrosted, it also needs time. Any moisture that gets inside the case or on the contacts must evaporate completely. Turning on a wet appliance is tantamount to creating a short circuit.
The most critical scenario is transporting the refrigerator lying down at sub-zero temperatures. In this case, the minimum settling time is 24 hours, and it is strictly forbidden to reduce it.
Step-by-step instructions: preparing for the first launch
Just waiting for the time is only half the battle. For the launch to be successful, the unit must be properly prepared. Follow this algorithm to eliminate the human factor and installation errors.
First, inspect the case for damage that may have appeared during delivery. Make sure that the shipping bolts (if the compressor had them, although this is rare now) are removed and all packaging materials, including tape and foam inside the chambers, are removed. Doors must close tightly.
Next, ensure correct installation. The refrigerator must stand on a level, solid base. Use a building level to check. The legs of the unit must be unscrewed so that the body is stable and does not wobble. The gap between the back wall and the wall of the room should be at least 5-7 cm for free air circulation.
How to check the tightness of the door?
Take a sheet of paper, clamp it with the refrigerator door and try to pull it out. If the sheet pulls out too easily without resistance all the way around, the seal may not fit tightly or requires adjustment. You can also use a flashlight by placing it inside a closed chamber in the dark. data-i="118">It is better to start the first time without loading food. Let the refrigerator run idle for 2-3 hours so that it reaches the desired temperature and turns off. Only after the first cooling cycle can you load food.
After the required settling time has passed, wipe the internal shelves with a damp cloth (possibly with the addition of baking soda) to remove the factory smell. Plug the power cord into a separate grounded outlet. Do not use extension cords or tees as the compressor starting current may be high.
The first launch is best done without loading products. Let the refrigerator run idle for 2-3 hours until it reaches the desired temperature and turns off. Only after the first cooling cycle can food be loaded.
⚠️ Attention: If after turning on you hear a loud metallic knock, clanging or buzzing that does not stop after 5-10 minutes, immediately unplug the appliance. signs of water hammer or a malfunction requiring the intervention of a specialist.
Typical errors during installation and startup
Many users, not knowing the technical nuances, make mistakes that negate all efforts for careful transportation. One of the most common is an attempt to turn on the refrigerator to “check” while it is running. The loaders have not left yet. This should not be done under any circumstances.
Another common mistake is installing the refrigerator close to the wall or in a niche without gaps. The compressor heats up during operation, and if the heat is not removed, the operating efficiency will decrease, and the wear of parts will increase. They also often forget to remove the transport film from the back of the heat exchanger, if there is one. data-i="124">Ignoring the floor level leads to the fact that the doors do not close on their own or close with a bang. This breaks the seal and forces the compressor to work without interruption, trying to maintain the temperature. The result is excessive energy consumption and rapid wear.
Ignoring the floor level leads to the fact that the doors do not close themselves or close with a bang. This breaks the seal and causes the compressor to run non-stop trying to maintain the temperature. The result is excessive energy consumption and rapid wear.
You should also not overload the refrigerator with food on the first day. The thermal inertia of a large volume of food may prevent the thermostat from turning off the compressor on time, which will lead to it. to its overheating. Load the chambers gradually.
FAQ: Frequently asked questions
What happens if I turn on the refrigerator 1 hour after transporting it lying down?
The probability of failure is very high, the oil will not have time to return to the crankcase, the compressor will work without lubrication, which will lead to it. jamming of the piston group or burning of the winding. Repair in this case will cost up to 70% of the price of the new device.
Is it necessary to wait time if the refrigerator was transported vertically and not shaken?
Yes, a minimum time (2-3 hours) is necessary for temperature stabilization and calming of the refrigerant Even with careful transportation. microvibrations could displace the oil. The risk is lower, but it exists.
Is it possible to speed up the drainage of oil with a hairdryer or heat?
Absolutely not. Local heating can damage the plastic housing, seals or varnish coating of the tubes.
Why does the refrigerator hum after the first turn on?
A slight hum is normal. But if the sound is strong, metallic, or accompanied by vibration of the case, the compressor may be working under load due to oil residues in the system or improper installation (the floor is not level).
Does the brand of the refrigerator affect the time? settling time?
The principle of operation of all compressors is the same. However, manufacturers of Whirlpool, Beko and other brands can use different types of oils with different viscosities. Therefore, it is better to focus on the maximum recommended time specified in the instructions for a specific model.
In conclusion, it is worth saying that patience when installing a refrigerator pays off with a long and trouble-free service. Proper preparation, adherence to temperature conditions and careful attention to the first start-up will allow your equipment to work efficiently for many years. Do not neglect these simple rules, and your refrigerator will become a reliable assistant in the kitchen.