After purchasing new household appliances or transporting them from one room to another, the owner is faced with the question of how to properly start the unit. Errors at this stage can lead to failure of an expensive compressor or failure of the cooling system. That is why it is important not just to plug the plug into the socket, but to perform a number of preparatory procedures that will ensure long and silent operation of the device.
In this article we will analyze in detail the entire installation process, based on the technical requirements of manufacturers and the experience of service engineers. You will learn why you shouldn’t rush with the first start-up, how to level the equipment and what to pay attention to during the initial cooling of the chambers. Visual materials will help you avoid common mistakes and guarantee the safety of the warranty.
Preparing for the first start after transportation
The first thing you need to start with is unpacking and visually inspecting the case for mechanical damage. Shipping tape, foam inserts and protective film must be completely removed as they prevent normal air circulation around the heat exchanger. Pay special attention to the rear wall where the condenser and compressor are located; any dents on the tubes may indicate a violation of the tightness of the freon circuit.
A critically important point is the time for the equipment to settle before connecting it to the power grid. If the unit was transported in a vertical position, it requires about 2-3 hours to stabilize temperature conditions and drain the oil. However, if the equipment was lying on its side, this period increases to 8-12 hours so that the compressor oil is completely returned to the engine crankcase.
⚠️ Attention: An attempt to start the compressor immediately after horizontal transportation can lead to water hammer. Oil entering the refrigerant circuit will clog the capillary tube, causing overheating and costly repairs.
Do not ignore the manufacturer's instructions, which often indicate specific requirements for specific models, such as Liebherr or Atlant. Some modern inverter models require a longer time for the electronics to adapt to temperature changes, especially if they came into a warm room from frost.
Why can’t you turn on the refrigerator right away?
A refrigerator is a complex thermodynamic system. During transportation, oil from the compressor may flow into the evaporator or condenser. If you turn on the motor immediately, it will start working without proper lubrication, which will lead to rapid wear of the piston group or jamming of the shaft. In addition, a sharp temperature change can cause condensation on the electronic control boards, which can lead to a short circuit.
Choice of installation location and ventilation requirements
The correct location of the refrigerator in the room directly affects its energy consumption and the service life of the compressor. The equipment should not be placed close to the wall or furniture; the minimum gap at the back is 5-7 cm, and at the sides - at least 2 cm. This space is necessary for free convection of air, which cools the heated refrigerant in the condenser.
Installing the unit near heating devices such as radiators, gas stoves or ovens is strictly prohibited. An increased ambient temperature forces the compressor to work under increased load, trying to maintain a given temperature regime inside the chambers. You should also avoid direct sunlight on the cabinet.
The floor at the installation site must be level and strong, capable of supporting the weight of a fully loaded device. Vibrations generated by the motor can gradually erode the flooring or cause equipment to move if it is not properly leveled. In old houses with wooden floors, it is recommended to place rubber anti-vibration pads under the legs.
Aligning the cabinet level
One of the key stages of installation is horizontal installation of the cabinet. A misalignment of even a few millimeters can result in the doors not closing tightly on their own or, conversely, starting to open spontaneously. This breaks the tightness of the chamber, causing ice fouling and increased energy consumption.
For adjustment, the front support legs are used, which usually have a threaded connection. By rotating them clockwise, you raise the angle, counterclockwise, you lower it. The rear legs, as a rule, are not adjustable, so the main work is done with the front part of the unit.
☑️ Checking the installation by level
There is an important nuance: the upper part of the refrigerator should be tilted back (by about 1-2 degrees). This provides the effect of self-closing doors under the influence of gravity. If the tilt is forward, the door will remain open, which will lead to defrosting of food and the appearance of condensation.
| Parameter | Normal | Consequences of violation |
|---|---|---|
| Gap at the back | 5-7 cm | Compressor overheating |
| Side gap | 2-3 cm | Poor ventilation |
| Forward tilt | 0 degrees | Spontaneous opening |
| Tilt back | 1-2 degrees | Tight closing of the door |
Connecting to the electrical network
Refrigeration equipment is classified as high-voltage devices dangers, so the wiring requirements here are strict. To connect, you must use a separate grounded outlet rated for a current of at least 16 Amps. The use of extension cords, tees and low-quality surge protectors is strictly not recommended, as they can cause a fire during power surges.
Modern models are equipped with electronic controls that are sensitive to voltage changes in the network. If your home has frequent light flickering or surges, it is highly recommended that you install a voltage stabilizer or voltage control relay. This will protect the expensive control board from burning out.
⚠️ Attention: Never connect the refrigerator to an outlet that does not have a ground connection. The accumulation of static electricity on the metal casing can lead to unpleasant electric shocks when touched.
When you turn it on for the first time, make sure that there are no foreign objects in the camera, and that the transport locks (if they were inside) have been removed. The plug should fit tightly into the socket, without play. If you smell burning or hear a crackling sound, immediately turn off the appliance and check the condition of the wiring.
Initial launch and temperature setting
After the equipment has settled and connected to the network, you can make the first launch. Press the power button or turn the temperature control to the position recommended by the manufacturer (usually the middle value). You should not immediately set the minimum temperature, as this will create an excessive load on the system.
During the first hours of operation, the refrigerator will gain cold. At this time, the sound of gurgling or liquid flowing may be heard inside - this is normal, the refrigerant is circulating. The compressor can operate continuously for 2-4 hours until the set temperature is reached.
For models with the system No Frost it is important to allow time for the correct air flow to form. Do not load the camera with food right away. An empty refrigerator will reach the desired temperature faster, after which you can gradually fill the shelves.
Loading with products and checking operation
It is recommended to fully load with products no earlier than 6-8 hours after switching on, when the temperature has completely stabilized. Place food so that it does not block the ventilation openings inside the chamber. Air circulation is the key to uniform cooling and the absence of areas with high humidity.
Pay attention to the operation of the condensate drainage system. In models with a drip defrosting system, water should flow freely into the drainage hole on the rear wall and evaporate in the tray above the compressor. If you notice puddles on the floor or inside the chamber, check to see if the drainage hole is clogged with crumbs or ice.
During the first week of operation, carefully monitor the noise level. New seals may make characteristic sticking sounds, and the compressor may undergo a grinding-in process. However, a constant hum, knocking or vibration of the case should alert you.
What to do if the refrigerator makes a lot of noise after installation?
Check whether all shipping bolts have been removed (if they were on the compressor). Make sure the refrigerator does not touch walls or furniture. Try changing the angle of your legs a little. If the noise persists and resembles a metallic knock, the compressor may need diagnostics.
Why are the side walls of the refrigerator hot?
In modern models, the condenser is often built into the side walls of the case. Their heating to 40-50 degrees in the first hours of operation or during active freezing is an absolutely normal operating process, and not a defect.
Is it possible to place a refrigerator on a laminate?
Yes, you can, but it is advisable to place special rubber mats under the legs or use a plastic stand. This will prevent the coating from being pressed under the weight of the unit and will reduce the transmission of vibrations to the floor.
How often do you need to defrost a No Frost refrigerator?
The No Frost system does not require manual defrosting to remove ice, since moisture is removed automatically. However, once or twice a year it is recommended to turn off the appliance for general cleaning, washing the internal shelves and treating the drainage system.
Why doesn’t the freezer freeze after the first turn on?
If less than 4-6 hours have passed, this is normal - the system has not yet returned to normal. Also check that the door is closed tightly and that the refrigerator is not overloaded with food immediately after switching on. If the problem persists for more than 12 hours, contact the service.