Have you just brought home a new refrigerator or transported an old one to the country, and now you don’t know how long it should sit before turning on for the first time? This question worries many - from an error here to a compressor breakdown there is only one step. Manufacturers indicate different recommendations: from 2 to 24 hours, and sometimes they even allow you to turn on the equipment right away. What is the truth?
The fact is that refrigerant (freon) and compressor oilcirculate inside the refrigerator. During transportation, especially in a horizontal position, oil can get into the cooling circuit, and freon can accumulate in the wrong places. If you turn on the unit immediately, the compressor will start to run “dry”, which is fraught hydraulic shock and failure. But there are nuances: the type of refrigerant, the model of the refrigerator and even the room temperature affect the safe interval.
In this article we will look at:
- 🔹 Why you can’t turn on the refrigerator immediately after delivery (physics of the process)
- 🔹 Official recommendations for Samsung, LG, Atlant, Indesit and other brands
- 🔹 How to properly prepare the refrigerator for the first start (step-by-step instructions)
- 🔹 What to do if the equipment was transported lying down or in the cold
- 🔹 Signs that the refrigerator is not yet ready to turn on
Why the refrigerator cannot be turned on immediately: analysis of technical reasons
The main danger lies in the compressor-condenser system. During transportation, especially if the refrigerator was transported lying down or at an angle, the following happens:
- 💧 Oil from the compressor gets into the capillary tubes and the evaporator. When starting, the compressor will operate without lubrication, which will lead to overheating and jamming.
- ❄️ Refrigerant (freon) can accumulate in the condenser or evaporator, disrupting circulation. This threatens increased pressure and triggering of the protection.
- ⚖️ In modern models with inverter compressors the risk is lower, but still present - the electronics may fail due to unstable pressure in the system.
Manufacturers take these risks into account and indicate in the instructions the minimum settling time. For example, refrigerators use a system that partially compensates for oil imbalance, but even this requires a pause of 4–6 hours. But older models with linear compressors (for example Samsung RB30A3200SA or LG GA-B409SQDL system is used Smart Inverter, which partially compensates for the oil imbalance, but even it requires a break of 4–6 hours. But older models with linear compressors (for example, Atlant MXM 1705) are more vulnerable - they need a full stabilization cycle (up to 24 hours).
Critical point: if the equipment was transported at temperatures lower +5°C, the waiting time increases. Refrigerant thickens when cold and takes longer to distribute evenly. This is relevant for delivery in winter or storage in an unheated warehouse.
Official recommendations of manufacturers: comparison table
Each brand gives its own recommendations on settling time. We collected data from the instructions of popular models (relevant for equipment released after 2018). Please note: if your model is older, check the standards in device passport —technologies change.
| Brand and model (example) | Minimum standstill time (hours) | Features |
|---|---|---|
| Samsung (RB, RT, RS series) | 4–6 | For models with Digital Inverter —2 hours with vertical transportation |
| LG (GA, GC, GR series) | 6–8 | Additional it is required to check the oil level during horizontal transportation |
| Atlant (MHM, HM) | 12–24 | Depends on the type of compressor: linear - 24 hours, inverter - 12 |
| Indesit (C, T series) | 8–10 | For models with No Frost — fan check is required |
| Bosch (KAN, KGN series) | 2–4 | Exception: models with the system VitaFresh — 6 hours |
Important: if the refrigerator was transported lying down for more than 2 hours, the standing time increases by 1.5–2 times, regardless of the brand. This is due to the risk of oil getting into the capillary tube, where it can solidify and block the circulation of freon.
How to properly prepare the refrigerator for the first turn on: step-by-step instructions
Even if you have waited the recommended time, you need to complete several mandatory steps before turning it on. This will help avoid not only breakdowns, but also problems such as an unpleasant odor or incorrect operation of sensors.
Make sure that the outlet is grounded and can withstand the load|Check the integrity of the door seal|Install the refrigerator at a level (permissible slope - no more than 2°)|Wipe the internal surfaces with a weak solution of soda (1 tbsp per 1 liter water)|Remove the transport bolts (if any) from the compressor and rear panel-->
Pay special attention transport bolts. In some models (for example Liebherr CNef 4315) they fix the compressor during transportation. If they are not removed, vibrations during operation may damage the fasteners. The bolts are usually located on the back wall and marked with labels «Remove before use».
After switching on, do not rush to load products. Let the refrigerator work 1-2 hours idleso that the cooling system reaches operating mode. During this time:
- 🌡️ Check that the temperature in the freezer begins to drop (should reach
-5°Cin 30-40 minutes). - 🔊 Listen compressor: extraneous knocking or humming may indicate oil getting into the system.
- 💨 Make sure that the fan (in models with
No Frost) rotates without obstacles.
What to do if the refrigerator does not turn on after settling?
If after waiting the refrigerator does not respond to turn on, check:
1. Voltage in the outlet (should be 220–240 V).
2. Integrity of the power cord and plug.
3. The functionality of the thermostat (turn the knob to maximum - you should hear a click).
If this is not the problem, the compressor protection may have tripped due to a residual oil imbalance. In this case, wait another 12 hours and try again.
What to do if the refrigerator was transported lying down or in cold weather
Transportation in a horizontal position is the riskiest scenario. In this case, oil from the compressor is almost guaranteed to enter the cooling circuit, and freon can accumulate in one of the corners of the evaporator. Here's what you need to do:
- Put the refrigerator vertically and fix it (for example, rest it against the wall) to avoid accidental tilting.
- Wait 18–24 hours at room temperature (
+18…+25°C). If the room is colder, the time increases to 36 hours. - Check the first start:
- 🔊 The compressor should start smoothly, without jerking.
- 🕒 Time of the first operating cycle (before turning off) should not exceed 20 minutes.
- 🌡️ The temperature in the freezer should drop evenly, without jumps.
If the refrigerator was transported 0°C and below, add another 6–12 hours to the settling time. When cold, refrigerant becomes more viscous and takes longer to distribute throughout the system. This is especially true for models with isobutane (R600a) - it thickens more than traditional R134a.
⚠️ Attention: If, after turning on, the refrigerator operates for no more than 5-10 seconds and turns off, immediately unplug the plug from the socket! This is a sign water hammer that there is no oil in the compressor and it is running dry. Restarting in this state will result in damage. Contact a service center to purge the system.
Signs that the refrigerator is not yet ready to turn on
Even if you have waited the recommended time, there are signs that indicate that The system has not yet stabilized. Please pay attention to the following points:
- 💦 Condensation on the rear wall (in models without
No Frost). If it appears 10-15 minutes after turning it on, this is normal. But if condensation flows in a stream immediately after startup, it means that the freon does not have time to circulate. - 🔊 Uncharacteristic sounds: loud gurgling, knocking or grinding. This may indicate the movement of oil or refrigerant in the wrong places.
- 🌡️ Uneven cooling: one of the chambers (usually the freezer) is not cooling, and the other is freezing.
- 🕒 The compressor runs without stopping longer 30 minutes. Normally, the first cycle should last 10-20 minutes.
If you notice at least one of these signs, turn off the refrigerator let it stand for another 6-12 hours. If the symptoms recur, this is a reason to contact the service. You may need vacuum the system or an oil change.
Frequent errors when first turned on and their consequences
Many users make the same mistakes that lead to breakdowns or reduced service life of the refrigerator. Here are the most common of them:
| Error | Consequences | How to avoid |
|---|---|---|
| Start up immediately after delivery | Hydraulic shock, compressor failure | Wait at least 4 hours (for vertical transportation) |
| Ignoring transport bolts | Damage to compressor mounts, vibration | Remove bolts before turning on (see instructions) |
| Tilting the refrigerator by more than 40° | Oil getting into the capillary tube | Transport only vertically or at an angle of up to 30° |
| Loading products immediately after switching on | Overloading the compressor, uneven cooling | Let it run idle for 1-2 hours |
Another typical mistake is use of extension cords instead of direct connection to the outlet. This can lead to a voltage drop, especially if the refrigerator is powerful (for example, Samsung RS62R5001M9 with a consumption of 1.2 kW). As a result, the compressor will not receive enough power to start, which will trigger the protection.
⚠️ Attention: If you transported the refrigerator with linear compressor (for example, Atlant MXM 2835-080) and turned it on earlier than 12 hours, the risk of breakdown increases in 3 times. Such compressors do not have protection against water hammer, and their repair will cost 50–70% of the cost of a new refrigerator.
Transportation tips: how to minimize standing time
If you need to transport a refrigerator with minimal waiting time before turning on, follow these recommendations:
- 🚛 Transport vertically only. If this is not possible, tilt no more than
30°and fix the position. - 🌡️ Avoid temperature changes. If it is cold outside, allow the refrigerator to reach room temperature before loading.
- 🛠️ Use the original packaging or special transport belts to avoid shaking.
- ⏳ Plan the delivery time so that the refrigerator can stand in indoors (for example, delivered in the evening - turned on in the morning).
For models with inverter compressors (for example, LG GA-B489TGGL) you can reduce the standing time to 2-3 hours if:
- The refrigerator was transported standing up.
- The room temperature is not lower
+18°C. - There are no signs of oil getting into the system (see section above).
If in doubt, it is better to play it safe and wait the standard 6-8 hours. This will save you from the risk of expensive repairs.
FAQ: Answers to frequently asked questions
Is it possible to turn on the refrigerator after 2 hours if it was driving while standing?
Depends on the model. Refrigerators with inverter compressors (Samsung Digital Inverter, LG Smart Inverter) can be turned on after 2-4 hours when transported vertically. For models with linear compressors (Atlant, Indesit), it is better to wait 6-8 hours.
What happens if you turn on the refrigerator immediately after delivery?
In the best case, the compressor protection will work and the refrigerator will turn off. In the worst case, a hydraulic shock will occur, which will damage the piston group of the compressor. The repair will cost 8,000–15,000 rubles (or 50–70% of the cost of a new refrigerator).
How to understand that oil has got into the cooling system?
Signs:
- The compressor starts and immediately stalls (cycles of 5–10 seconds).
- Extraordinary sounds are heard: gurgling, knocking, grinding.
- The refrigerator does not cool, but the compressor is hot.
In this case, you need to turn off the equipment and let it stand for another 12-24 hours. If the symptoms recur, call a technician to purge the system.
Do you need to wait if the refrigerator is new and only from the factory?
Yes, even for new equipment the same rules apply. Refrigerators are tested at the factory and the refrigerant may be unevenly distributed. In addition, during transportation from the factory to the store and then to your home, the equipment is subject to shaking.
Is it possible to speed up the stabilization process?
There are no reliable ways to speed up the distribution of oil and freon. The only thing that can be done:
- Put the refrigerator in a warm room (
+20…+25°C). - Avoid tilting and vibrations after delivery.
- Do not try to “accelerate” the compressor by turning it on repeatedly - this will only aggravate the problem.