Buying new household appliances always causes excitement and joy, but haste during the first start can lead to serious consequences for an expensive unit. Many owners make the mistake of connecting the device to the power supply immediately after unpacking, without taking into account the physical processes that occurred with the equipment during transportation. Compressorbeing the heart of the cooling system, requires special attention and time to stabilize the working fluids.
Transporting the refrigerator, especially over long distances distance or with an inclination, causes a displacement refrigerant and compressor oil from the engine crankcase to the system circuits. If you start the engine immediately, the oil may not have time to return to the crankcase, which will lead to running without lubrication, water hammer and, in the worst case, complete breakdown of the unit. In this article we will analyze in detail why it is necessary to take a pause and how to properly prepare the equipment for the first start.
Following simple operating rules in the first hours of operation will extend the life of your refrigerator and guarantee its efficient operation for a long time years. The minimum settling time for equipment after horizontal transportation is 12 hours, and after vertical transportation - at least 3-4 hours. Let's look at this process step by step to eliminate any risks.
Why you can’t turn on the refrigerator right away: physics process
The main reason for the need for a pause lies in the design of the compressor and the properties of the refrigerant. In normal operation, compressor oil is located at the bottom of the engine, providing lubrication to the rubbing parts. During transportation, especially if the refrigerator was transported lying down or strongly tilted, the oil flows through the system tubes into the evaporator or condenser.
If you turn on the unit at this moment, the compressor will begin to operate in oil starvation mode, which critically increases the wear of the piston group. In addition, oil that gets into the circuit can clog capillary tube, creating excess pressure that the compressor cannot overcome. This often leads to burning of the motor windings or rupture of the tubes.
It is also important to consider the temperature regime. If the equipment was delivered in winter, a sharp temperature change can cause condensation to form inside the electronic boards and on the contacts. Turning on a wet device can result in a short circuit. Therefore, adaptation to room temperature is a mandatory step before the first start.
Stages of preparation before the first start
Before inserting the plug into the socket, it is necessary to carry out a number of preparatory manipulations. They concern not only the waiting time, but also the correct placement of equipment in the room. Surface level plays a key role in silent operation and proper closing of doors.
First remove all shipping materials: tape, foam, plastic film. Pay special attention to internal fasteners - shelves, drawers and trays, which are often secured with tape or foam inside the chambers. Do not forget to remove the protective film from the inner walls, if any, as it prevents normal air circulation.
Next, you need to level the case. To do this, use a building level and leveling feet. The doors should close tightly and automatically close to the stop when opened to 45 degrees. Incorrect installation can lead to refrigerator compartment leakage, and the compressor will work without interruption.
⚠️ Attention: If the refrigerator was delivered in the cold in winter, do not bring it into a warm room and do not turn it on immediately. Let it warm up to room temperature while turned off for at least 4-6 hours to avoid condensation on electronic components.
How long to wait before turning it on
The settling time directly depends on the position in which the equipment was transported and what the weather conditions were. Ignoring these time frames is the most common reason for calls to service centers in the first month of operation.
For refrigerators with the system No Frost and conventional drip systems, the rules may differ slightly, but the principle of oil return is the same for all. The table below shows the approximate terms recommended by manufacturers and repair specialists.
| Transportation conditions | Recommended settling time | Reason for waiting |
|---|---|---|
| Vertical transportation (without tilting) | 2–4 hours | Stabilization of refrigerant and oil |
| Transportation with an inclination of up to 40° | 4–8 hours | Draining of oil into the compressor crankcase |
| Horizontal transportation (lying down) | 12–24 hours | Full return of oil from the circuits |
| Winter delivery (frost below -10°C) | 4–6 hours (after adding heat) | Warming up the electronics and evaporating condensate |
It is worth noting that the indicated periods are minimal. If you have the opportunity to wait longer (for example, leave the refrigerator for a day), this will only benefit the device. The time reserve guarantees that all technical fluids will take their regular places.
First switching on and checking operation
After you have waited the required time, you can proceed to the first start. Connect the refrigerator to a separate socket grounding connection. The use of extension cords or tees is not recommended, as the starting currents of the compressor can be high, which creates a risk of overheating of the contacts.
Plug in the device. In the first minutes, you may hear gurgling or the noise of flowing liquid - this is normal, the refrigerant begins to circulate through the system. Modern models with inverter compressors can start working almost silently, so check the cooling by the temperature inside the chambers.
Do not load products immediately. Allow the refrigerator to idle for 2-4 hours until it reaches the desired temperature and shuts down (or goes into low power mode). Only after reaching the normal temperature conditions can you fill the chambers with products.
☑️ Checklist for the first launch
⚠️ Attention: Do not immediately set the temperature regulator to maximum (super freezing). Set the average value so that the compressor enters operating mode smoothly, without extreme loads.
Common mistakes when operating new equipment
Even knowing the rules, users often make mistakes that reduce the life of the equipment. One of the most common is to install the refrigerator close to a wall or furniture. For normal operation, the heat removal system requires a gap of at least 5-10 cm from the back wall and sides.
Another mistake is ignoring the smell of plastic in the first days. A new device may have a specific technical smell that disappears in a couple of days. However, if the smell is pungent and chemical, this may indicate a wiring fault or a freon leak, which requires immediate shutdown. Also, users often forget to check the doors. They may have shifted or become deformed during transportation. A loose fit of the door will force the compressor to work continuously, trying to compensate for the loss of cold, which will quickly disable it.
Also, users often forget to check sealing rubber bands on the doors. They may have shifted or become deformed during transportation. A loose door seal will cause the compressor to work continuously, trying to compensate for the loss of cold, which will quickly damage it.
What to do if the refrigerator hums loudly after turning on?
If the hum is accompanied by vibration, check whether the shipping bolts have been removed (if they were on the compressor) and whether the device is level. Sometimes a hum occurs because the refrigerator is touching furniture or a wall. Move it 5-10 cm. If the noise remains and resembles the knocking of metal on metal, this is a sign of a malfunction that requires a technician.
Setting the temperature conditions and loading
After the initial run, you need to adjust the temperature conditions. For the refrigerator compartment, the optimal temperature is +2...+4°C, for the freezer - -18°C and below. You should not set the minimum possible values unless necessary, this increases energy consumption.
Loading of products should occur gradually. Do not fill an empty refrigerator that has just been turned on with warm food. It is better to wait until the temperature stabilizes and then load the food in small portions. This will help the system adapt faster.
It is important to properly distribute products: ready-made meals and perishable foods - on the middle shelves, vegetables and fruits - in the lower drawers, meat and fish (for long-term storage) - in the freezer. Proper air circulation inside the chambers ensures uniform cooling.
FAQ: Frequently asked questions
Is it possible to transport the refrigerator lying down if it is not possible to stand it?
Transporting lying down is possible, but not advisable. If there is no other way out, lay the refrigerator on its side (usually on the left, when viewed from the hinges, but it is better to check the instructions for the specific model). After such transportation, the settling time should be at least 12-24 hours before turning on.
Why does the refrigerator not freeze during the first hours of operation?
Modern refrigerants and large volumes of chambers require time to reach the operating mode. In the first 4-6 hours, the unit can operate continuously, gaining temperature. If after 8-10 hours there is no cold, but the compressor is hot, there may be a leak or breakdown.
Do you need to wash the inside of the refrigerator before first use?
Yes, definitely. Wipe all internal surfaces with a soft cloth soaked in a weak solution of soda or a special cleaner for household appliances. This will remove factory dust, lubricant residues and technical odors. After wet cleaning, leave the doors open for 30-60 minutes to dry.
Is it dangerous if the refrigerator has been left turned off for several months?
Leaving the refrigerator turned off for a long time is not dangerous if it is stored in a dry room. Before turning it on after a long period of inactivity (more than 3-4 months), it is recommended to let it stand plugged in without load (empty) for about a day, so that the oil is evenly distributed throughout the system again.