Have you turned on a new refrigerator or started the old one after defrosting, but it still does not cool? Don't rush to panic! The time it takes for the equipment to reach operating mode depends on many factors: the type of compressor, the volume of the chambers, the room temperature and even the product load. In this article, we will look at real cooling standards for different models, explain why the process can take a long time, and give a checklist for speeding up.
Many users expect that the refrigerator will start freezing immediately after turning it on, but this is not the case. The compressor takes time to pump refrigerant through the system, and the thermostat takes time to stabilize the temperature. If you don't know how long to wait and what to do in case of a delay, read on: we have collected data from instructions Samsung, LG, Atlant and other brands, as well as advice from repair experts.
Let's immediately note: normal cooling time varies from 2 to 24 hours. But that doesn't mean you have to wait a day before putting in your groceries. Within 1–2 hours, ice will begin to form in the freezer compartment, and the main chamber will cool to +10...+15°C. It takes longer to fully achieve the set parameters (usually +4...+5°C in the refrigerator compartment and −18°C in the freezer). Below are the details for each case.
1. Cooling standards for new refrigerators
The first turn on is the longest process. Manufacturers indicate in the instructions that new refrigerator must stand from 4 to 12 hours before loading products. This time is needed not only for cooling, but also to stabilize the operation of the system:
- 🔹 Inverter compressors (for example, in models LG DoorCooling+ or Samsung Digital Inverter): they cool faster - for 2–6 hours. They smoothly gain power, avoiding overloads.
- 🔹 Linear compressors (traditional, as in Atlant or Indesit): require 6–12 hours. They operate in on/off cycles, which slows down the process.
- 🔹 No Frost systems: can cool longer by 1–2 hours due to forced air circulation.
Important: if the refrigerator was delivered in a horizontal position (lying down), you need to wait it before turning it on vertically 6–8 hours. This is due to the risk of oil from the compressor getting into the cooling circuit. Ignoring this rule can lead to compressor failure in the first hours of operation.
In the instructions of some brands (for example, Bosch or Liebherr) it is indicated that complete cooling takes up to 24 hours. This is true for large models with a volume of over 300 liters or with a function SuperCoolthat first intensively cools the chambers and then goes into normal mode.
2. Cooling time after defrosting
After defrosting, the refrigerator restores the temperature faster than when it was first turned on, but it still takes time. Average indicators:
| Refrigerator type | Time up to +5°C in the main chamber | Time up to −18°C in the freezer |
|---|---|---|
| Single chamber (up to 200 l) | 1–3 hours | 2–4 hours |
| Two-chamber (200–300 l) | 2–5 hours | 3–6 hours |
| Side-by-Side (over 300 l) | 3–8 hours | 5–10 hours |
| With the No Frost system | +1 hour to normal | +1–2 hours to normal |
If more than 8 hourshas passed after defrosting, and the refrigerator is still not cooling, check:
- 🔌 Is the door closed correctly (the seal may be damaged).
- ❄️ Is the
VacationorEcomode turned on, which limits the power. - 📉 Room temperature - if the room is hotter than +30°C, the compressor may not cope.
⚠️ Attention: After defrosting, do not load food immediately! Wait until the temperature in the main chamber drops to +10°C, otherwise the compressor will wear out and the food may spoil.
3. Why does the refrigerator not cool for a long time?
If the cooling time exceeds the norm, the reasons can be both external and internal. Let's consider typical cases:
1. Overload with products. If you have filled the refrigerator with warm dishes (for example, after shopping), the compressor will need to 30–50% more time. Optimal loading is no more than 2/3 of the volume, with uniform distribution of products.
2. Incorrect installation. The refrigerator should be placed on a flat surface, with a gap 5–10 cm from the wall for ventilation. If it is pressed tightly or stands in direct sunlight, heat transfer is disrupted.
3. Malfunctions. Possible malfunctions:
- 🔧 Refrigerant leak —the compressor works without stopping, but there is no cooling.
- 🔌 Problems with the thermostat —the temperature in the chamber does not correspond to the display readings.
- ⚡ Fan malfunction (in models with No Frost) - the freezer works, but the refrigerator compartment does not.
To diagnose the problem, pay attention to the sounds: a normal compressor should buzzing quietly with pauses. If it does not turn off at all or, conversely, is silent, this is a reason to call a repairman.
How to check operation of the compressor without tools?
Touch the bottom back wall of the refrigerator (where the compressor is located). If it hotand the refrigerator does not cool, there may be a freon leak. If cold — the compressor may not turn on due to a breakdown of the start relay or thermostat. Do not attempt to repair it yourself - there is a risk of electric shock or worsening the breakdown!
4. How to speed up the cooling of your refrigerator?
If you need to cool your refrigerator quickly (for example, before loading perishable food), use these tips:
Set the minimum temperature (for example, Super Freeze or Max Cool)|Do not open the door without necessary|Place cold water bottles or ice in the freezer|Check if anything is blocking the ventilation grilles|Turn off the mode Eco or Vacation-->
Additional life hacks:
- ❄️ If the refrigerator is empty, put it in the freezer ice packs —they will help lower the temperature faster.
- 🌡️ In hot weather, reduce the temperature in the room (for example, turn on the air conditioner).
- 🔄 In models with freshness zones (for example, Samsung Twin Cooling Plus), first cool the main chamber, and then load the products into the zero zone.
⚠️ Attention: Do not place in refrigerator hot dishes - this will increase the cooling time by 2-3 hours and put a strain on the compressor. Cool food to room temperature!
5. Cooling features of refrigerators with No Frost
Systems No Frost (or Frost Free) are cooled differently than drip models. Their key feature is forced air circulation using a fan. This speeds up the process, but there are nuances:
Pros:
- ✅ Uniform distribution of cold - there are no “warm” and “cold” zones.
- ✅ Quick temperature recovery after opening the door.
- ✅ There is no need for manual defrosting.
Cons:
- ❌ The fan creates additional noise (up to 40–45 dB).
- ❌ If the fan breaks, the refrigerator compartment stops cool even if the freezer is running.
- ❌ Consumes 10–15% more electricity due to constant fan operation.
In models with No Frost (for example, Liebherr CNef 4315 or Bosch KGE39AW20R) time cooling after switching on increases by 1–2 hours due to the need to drive air through all channels. If the fan is clogged with dust or ice has built up on the evaporator, the process may take up to 10–12 hours.
6. Temperature standards for different types of products
Even if the refrigerator has cooled down, this does not mean that all products can be put in at once. Here are temperature recommendations for safe storage:
| Product type | Optimal temperature | Maximum storage time |
|---|---|---|
| Meat and fish (raw) | +1...+3°C | 1–2 days |
| Dairy products | +2...+5°C | 3–7 days |
| Vegetables and fruits | +4...+7°C | 5–14 days |
| Ready meals | +2...+4°C | 2–4 day |
If the refrigerator has not yet reached the desired temperature, but you urgently need to preserve food, use freshness zone (if available) or place food in the coldest places:
- 🥩 For meat/fish: lower shelf above the vegetable drawer.
- 🥛 For milk/cheese: middle shelf.
- 🍎 For fruits/vegetables: special drawers with adjustable humidity.
7. Frequent errors when first turned on
Many users are surprised why the refrigerator does not cool, although everything was done “according to the instructions.” Let's look at typical mistakes:
1. Switching on immediately after transportation.
If the refrigerator was transported lying down, oil from the compressor could get into the circuit. When turned on without settling (6–8 hours), this leads to water hammer one of the most expensive breakdowns.
2. Incorrect temperature setting.
Setting the mode Max or Super Freeze on a permanent basis increases the load on the compressor and shortens its service life. Use these modes only for quick cooling (no more than 2–3 hours).
3. Ignoring external conditions.
If the room temperature is above +30°C, the refrigerator will physically not be able to cool down to +4°C. In this case:
- 🌡️ Set the regulator to the middle value (for example,
3iz5). - 🔄 Improve ventilation around the refrigerator.
- ❄️ Use additional sources of cold (for example, batteries cold).
⚠️ Attention: In some models (for example, Indesit or Beko) when the room temperature is above +32°C, the compressor automatically turns off to protect against overheating. Check the instructions for your model!
FAQ: Answers to frequently asked questions
Is it possible to turn on the refrigerator immediately after delivery if it was standing upright?
Yes, but only if the transportation took place in an upright position and there were no sudden impacts. In this case, it is enough to wait 1-2 hours before turning it on. If the refrigerator was transported lying down, be sure to wait 6-8 hours!
Why does the new refrigerator hum and not cool?
In the first hours of operation, the compressor may hum loudly - this is normal. But if after 6-8 hours there is no cooling. check:
- Is the door closed (maybe the packaging film is in the way).
- Is the demo mode turned on (
Demo). - Are there any transport bolts on the compressor (they must be removed!).
If everything is in order, but the problem remains - contact the service center.
How long should the refrigerator work without stopping when first turned on?
Normal cycle: 2–3 hours of continuous operation, then a short break (5-10 minutes) If the compressor does not turn off for more than 4-5 hours, this is a sign of a malfunction (for example, a freon leak or breakdown). thermostat).
Is it possible to speed up cooling by placing a fan in the refrigerator?
No! An additional fan will disrupt the natural air circulation and can lead to icing of the evaporator (Super Cool) or place bottles of cold water in the freezer.
What to do if the refrigerator has cooled down, but after a day it has become warm again?
Probable reasons:
- 🔌 Thermostat malfunction (needs replacement).
- 🔧 Refrigerant leak (refill required).
- 📉 Product overload (check evenness of distribution).
- 🌡️ A sharp increase in room temperature (for example, due to the air conditioner turning off).
Turn off the refrigerator at 10 minutes, then turn it on again. If the problem persists, call a specialist.