The first turn on of a new or transported refrigerator is a critical stage on which the compressor durability and quality of food freezing. Many owners make the mistake of starting the equipment immediately after delivery, which can lead to serious damage to the hydraulic system. Before pressing the power button, you need to perform a number of preparatory actions, ignoring which will void the warranty.
In this article we will analyze in detail the physics of the process, the technical nuances of transportation and the step-by-step startup algorithm. You will learn why the settling time depends on the position in which the unit was transported, and how to correctly set the temperature conditions for two independent chambers.
The influence of transportation on the settling time
The main enemy of the compressor is oil, which, when shaking and tilting, gets into the refrigerant circuit. If you turn on the unit until the oil has flowed back into the crankcase, the compressor will run “dry” or try to compress the incompressible liquid, which will lead to water hammer. The resting time directly depends on the delivery method.
If the refrigerator was transported in an upright position, without strong tilts, it is enough to let it stand for 2-4 hours. During this time, the refrigerant will stabilize, and the temperature sensors will warm up to room temperature, which will eliminate the formation of condensation inside the electrics.
In the case of horizontal transportation or a strong tilt (more than 40 degrees), the settling process should last at least 8, and preferably 12–24 hours. The oil must completely drain from the evaporator and condenser tubes into the compressor.
⚠️ Attention: If you do not know exactly how the equipment was transported (for example, you bought it secondhand or the delivery was carried out by a third-party service), follow the rule of maximum waiting time - 24 hours. This will save the compressor from jamming.
- 🚚 Vertical transportation - sucks for 2-4 hours.
- 🛌 Horizontal transportation - sucks from 8 to 24 hours.
- ❄️ Winter delivery - complete warming up in the room before turning on (minimum 4 hours).
Preparing the installation site and checking the housing
Before connecting the cord to the network, make sure that the refrigerator is installed correctly. For correct operation of the No Frost or static cooling system, free air flow around the heat exchanger is required. The back wall of the device should be at least 5–7 cm away from the wall.
Visually inspect the housing for dents, especially in the area of the compressor and pipes at the back. Even slight deformation of copper tubes can disrupt the circulation of freon. Make sure the floor is level: misalignment can cause vibration and noise when the engine is running.
Remove all shipping tape, cardboard spacers and tape. Pay special attention to the internal fasteners of shelves and drawers - some manufacturers secure them with tape, which must be removed before use.
⚠️ Attention: Do not install the refrigerator near heating radiators, stoves or in direct sunlight. This will cause the compressor to work overload, trying to compensate for external heat.
Check the integrity of the door seals. They should fit snugly around the entire perimeter. If there are gaps between the door and the body, the cold will escape, but the compressor will not turn off.
Primary washing and disinfection
The inside of the new device smells of plastic and technical lubricants. Before loading food, the interior must be cleaned. Use a weak solution of baking soda or a special refrigerator cleaner.
Wipe all shelves, drawers and interior walls with a damp cloth. Do not use abrasive powders or aggressive chemicals - they can damage the coating and leave an odor that will be absorbed into the products.
After washing, wipe the surfaces dry. Wet shelves can freeze to the food or cause the formation of excess ice in the freezer during the first start.
Algorithm for the first start of the equipment
When the settling time has expired and the insides have been washed, you can begin connecting. Insert the plug into a separate grounded outlet. The use of extension cords or tees is not recommended, since the starting currents of the compressor can melt the contacts in places of poor connection.
After connecting to the network, you will hear a characteristic hum - this is the compressor working. In the first minutes of operation, the equipment may make more noise than usual, this is normal: the system reaches operating mode and the refrigerant begins to circulate through the circuit.
☑️ Checklist for the first start-up
Do not load products right away! Allow the refrigerator to idle for at least 2-4 hours (up to 12 hours for the freezer). During this time, it will reach the required temperature, and the automation will turn off the compressor.
| Parameter | Normal value | Cause of deviation |
|---|---|---|
| Settlement time | 4–24 hours | Depends on the inclination during transportation |
| Temperature set | 2–4 hours | Depends on the volume of the chambers and the temperature in the room |
| Temperature in the refrigerator compartment | +4...+5 °C | Standard storage mode |
| Temperature in the freezer | -18 °C and below | Deep freezing mode |
Setting temperature modes
Modern two-chamber models are equipped with electronic or mechanical control. Mechanical models use a thermostat with divisions (usually from 1 to 5 or 7). Do not rush to set the maximum value.
For the initial start, set the regulator to the average value (usually 3 or 4). This will allow the system to reach a mode without overload. After 5-6 hours, you can check the temperature with a thermometer and, if necessary, adjust the settings.
In models with a system No Frost and electronic control, select the “Eco” or standard mode. The “Super Freeze” function is needed only for quickly freezing large volumes of fresh food; you cannot keep it on all the time - this will lead to freezing and waste of energy.
If your model has a freshness zone (zero chamber), make sure that it is not blocked by food, otherwise the temperature sensor may read the readings incorrectly, and meat or fish will spoil faster.
Typical errors when you first turn on
The most common mistake is loading warm products or a large amount of food at room temperature into an empty, just turned on refrigerator. This creates a colossal load on the compressor, which may not be able to withstand it and burn out without shutting down.
The second mistake is installing the refrigerator in a niche without gaps for ventilation. The heat exchangers (black tubes on the back or sides) should release heat into the air. If there is no circulation, cooling efficiency decreases and energy consumption increases.
⚠️ Attention: Never wash the refrigerator with hot water or defrost the freezer with a knife or hair dryer in the first month of operation. The plastic and seals must “rest” and take their final shape.
Also, users often ignore the sound of gurgling or liquid flowing. In new models, this is normal - freon passes from a liquid state to a gaseous state. However, if the noise is accompanied by vibration of the case, check whether the pipes from behind are touching the wall or furniture.
What to do if the refrigerator does not turn off?
If the refrigerator operates continuously for more than 6-8 hours and does not turn off, check the tightness of the door. If the door is closed tightly and the compressor hums continuously, there may be a freon leak or the thermostat is faulty. In this case, disconnect the device from the network and contact the service.
Frequently asked questions (FAQ)
Is it possible to turn on the refrigerator immediately after delivery in winter?
No, absolutely not. After winter outdoors, equipment needs to stand in a warm room for at least 4–6 hours to warm up. Turning on a cold compressor with frozen oil will lead to its breakdown.
Why do the side walls of the refrigerator get very hot?
In modern models, the condenser (heat exchanger) is often built into the side walls. Their heating to 40–50 °C in the first hours of operation or during active freezing is a normal physical process of heat removal.
Do you need to wash the refrigerator before turning it on for the first time?
Yes, definitely. Particles of industrial dust, grease or plastic smell may remain inside. Washing with warm water and soda will ensure that the food is hygienic and free of foreign tastes.
How long does it take the refrigerator to reach temperature for the first time?
The time it takes to fully reach the mode depends on the volume of the chambers and the temperature in the room. Typically, the refrigerator compartment cools down in 2–3 hours, and the freezer reaches -18 °C in 4–6 hours.