You just Have you purchased a new refrigerator or moved your old one to a new place, and now you can’t wait to turn it on? Stop! Failure to comply with the rules for the first start-up after transportation is one of the main reasons for compressor breakdowns in the first months of operation. Even if the equipment looks intact, critical components inside could have shifted.
In this article we will analyze how many hours should the refrigerator sit for? depending on the type of refrigerant, the angle of inclination during transportation and the temperature in the room. Let us explain why manufacturers they insist on a minimum waiting time of 2 to 24 hours - and what will happen if you ignore the recommendations. We’ll also tell you how to check whether the unit is ready to turn on if you don’t know the history of its transportation.
Why you can’t turn on the refrigerator immediately after delivery
The main reason — risk of water hammer in the compressor. During transportation, oil from the compressor crankcase may enter the refrigerant circuit (especially if the refrigerator was transported lying down or at a high angle). When turned on, oil mixed with freon enters the compressor cylinders - this leads to:
- 🔧 Piston jamming - the oil does not perform a lubricating function, metal parts rub “dry”.
- ⚡ Overheating of the windings —the compressor operates under increased load, which leads to engine combustion.
- ❄️ Impaired refrigerant circulation —oil clogs the capillary tubes, impairing cooling.
The second problem is on the internal parts. If the refrigerator was transported during the cold season and then brought into a warm room, condensation will form on the evaporator and pipes. Turning on in this state can provoke moisture condensation on internal parts. If the refrigerator was transported during the cold season and then brought into a warm room, condensation will form on the evaporator and pipes. Switching on in this state may cause short circuit in the electrical circuit.
How long should a refrigerator sit: table by type
The waiting period depends on three factors: position during transportation, type of refrigerant and room temperature. Below are recommendations for modern models (2018–2026 model years) with refrigerants R600a (isobutane) and R134a.
| Transport position | Refrigerant type | Room temperature | Minimum waiting time |
|---|---|---|---|
| Standing (vertical) | R600a (isobutane) | 18–25°C | 2–4 hours |
| Standing (vertical) | R134a | 18–25°C | 4–6 hours |
| At an angle of 30–45° | Any | Any | 8–12 hours |
| Horizontal (lying) | R600a | Below 15°C | 18–24 hours |
| Horizontal (lying) | R134a | Below 15°C | 24 hours |
⚠️ Attention: If the refrigerator was transported to winter period (at a temperature below +5°C), the waiting time increases by 30–50%. This is due to thickening of the oil in the compressor. For models with an inverter compressor (for example, LG InstaView or Samsung Family Hub), the minimum standing time is 6 hours, regardless of the transport position.
How to check if the refrigerator is ready to turn on
If you do not know how exactly the equipment was transported (for example, you bought a used refrigerator), use 3 ways diagnostics before turning it on for the first time:
- Checking the oil level in the compressor:
Carefully tilt the refrigerator 10–15° back and forth. If you can hear liquid pouring inside the compressor (black cylinder at the back), the oil has not yet flowed into the crankcase. You need to wait.
- Condensation test:
Wipe the back wall of the refrigerator with a dry cloth. If after 10 minutes it becomes wet again, moisture has accumulated inside. You cannot turn on the equipment.
- Checking the pressure in the system (for experienced users):
Connect the pressure gauge to the service port (usually located on the compressor tube). The pressure should be within
0.1–0.3 MPa. If lower, the refrigerant is not distributed evenly.
Check the vertical position (use a level)
Make sure the back wall is dry
Wait at least 2 hours (even for vertical transportation)
Disable the "Quick cooling" function for the first 12 hours of operation-->
💡 Helpful advice: If the refrigerator was transported lying down, but you urgently need to turn it on (for example, to store medicine), place it vertically and swing gently from side to side 5-6 times. This will help the oil drain into the crankcase faster. However, the risk of breakdown still remains!
What happens if you turn on the refrigerator ahead of time
The consequences depend on the degree of violation of the rules. Here are real cases from the practice of service centers:
- 🔥 Compressor combustion —the most common consequence. Repairs cost 50–70% of the cost of a new refrigerator. For example, replacing a compressor with Atlant MXM 2835-90 costs ~15,000 rubles.
- ❄️ Icing of the evaporator - due to impaired refrigerant circulation at the rear Ice forms on the wall, and the temperature in the chamber does not drop below +10°C.
- 🔊 Increased noise —the compressor works for wear, making a knocking or humming noise. After 1–2 months, a replacement is required.
- 💸 Refusal warranty — if the refrigerator's passport indicates a waiting time (for example,
"at least 4 hours"), and you turned it on earlier, the service center has the right to refuse free repairs.
Signs of breakdown after early switching on
If after starting the refrigerator:
1. It works for 5–10 minutes and turns off (overheat protection).
2. It doesn’t freeze, but the compressor is hot.
3. It makes clicking or cracking noises when trying to start.
→ These are signs of water hammer. Immediately disconnect the equipment from the network and call a technician!
⚠️ Attention: In refrigerators with a system No Frost (for example, Beko GNE114620X or Indesit ITF 118 W) the consequences may not appear immediately, but after 1-2 weeks. First, you will notice that the food stops freezing, and then the compressor will stop turning on altogether.
Features for refrigerators with an inverter compressor
Inverter models (LG GA-B489YVQZ, Samsung RB30A3200SA) are more sensitive to violations of transportation rules. Their compressors operate at a variable frequency, and oil entering the system leads to:
- 📉 Unstable operation - the compressor either accelerates or slows down, which leads to temperature surges.
- 🔌 Errors on the display - codes may appear
Er IF(malfunction inverter) orEr CF(problems with the refrigerant). - 🔋 Discharge of capacitors — inverter circuits are sensitive to voltage drops that occur during a "dry" start.
Strict rules apply for such models:
⚠️ Attention: Refrigerators with an inverter compressor cannot be transported lying down —only vertically! If this rule has been violated, the waiting time before turning on increases to 24 hours, regardless of the room temperature.
🔹 Key conclusion: Inverter refrigerators require dual control before turning on: oil check i electronics test. Use a multimeter to make sure that the voltage on the control board is stable (220-230 V).
Frequent errors at first switching on
Even if you have waited the right time, you can make mistakes that will shorten the service life of the equipment. Here is what you cannot do on the first day of operation:
- ❌ Load products immediately - the compressor needs 1-2 hours to reach operating mode. Fill the chambers no earlier than 4–6 hours after switching on.
- ❌ Set maximum power - function
"Super Freeze"or"Fast Cool"creates additional load. Turn it on only after 12 hours. - ❌ Move the refrigerator after turning it on - vibrations can displace oil that has not yet stabilized.
- ❌ Connect via extension cord -voltage surges in the first hours of operation are critical for new equipment.
📌 Advice from the experts: If the refrigerator is new, before turning it on for the first time take a photo of the serial one. number (located on the sticker inside the chamber or on the back). This will help you quickly obtain warranty repairs if something goes wrong.
FAQ: Answers to frequently asked questions
Is it possible to speed up the settling process if you tilt the refrigerator?
No! A tilt of more than 15° can lead to oil displacement in wrong direction - instead of the crankcase, it will end up in the circuit. refrigerant. Only slight rocking (5–10°) is allowed to accelerate the drainage of oil.
How can I tell what refrigerant is used in my refrigerator?
Look at nameplate (metal plate) on the back of the refrigerator. Look for inscriptions "Refrigerant", "Refrigerant" or abbreviations R600a, R134a, R290. If there is no information, presumably this is R600a (used in 90% of modern models).
What to do if the refrigerator has already been turned on ahead of time and it does not work?
Immediately unplug it and do not try to turn it on again! Wait 24 hours, then try to start again. If the compressor does not start or you hear strange sounds, call. technician. Do not defrost refrigerator in the hope that “everything will go away on its own” - this will aggravate the breakdown.
Is it necessary to wait if the refrigerator was transported in its original packaging "standing"?
Yes, even with ideal transportation minimum 2 hours —the oil could have been shaken. The exception is models with transport bolts (for example, Lieberr EK 1460), which fix the compressor. In this case, 30–60 minutes are enough.
Can a refrigerator with a No Frost system fail due to early switching on?
Yes, the risk is even higherthan with drip models In systems! data-i="225">oil circulates more actively, and its entry into the refrigerant circuit leads to No Frost oil circulates more actively, and its entry into the refrigerant circuit leads to clogging of capillary tubes. Repairs are 2-3 times more expensive than replacing a compressor.