Buying new household appliances is always an exciting moment, especially when it comes to large equipment such as refrigerator. After the movers carefully brought the unit into the kitchen, unpacked it and installed it in place, many users have one of the most common questions: is it possible to immediately plug the cord into the outlet? The impulsive desire to quickly start the device and see how the light turns on inside is quite understandable, but haste in this matter can be fatal for expensive equipment.
Modern models from brands like LG, Bosch or Indesit equipped with complex circulation systems refrigerant and sensitive compressors that require careful handling. The minimum time for the refrigerator to settle before turning on is from 2 to 4 hours in the summer and up to 8 hours if transportation took place in winter. Ignoring this rule often leads to failure of the motor, which is not a warranty case, since it is considered a violation of operating conditions on the part of the user.
In this article we will take a detailed look at the physical processes occurring inside the cooling system during transportation and explain why a technical break before the first start is critically important. You will learn how to properly prepare the unit for operation, what parameters need to be checked and why the position in which the device was transported directly affects the waiting time.
Physics of the process: why you can’t rush to start
To understand the need for a pause before turning on, you need to consider the design of the compressor. Modern refrigeration units use oil compressor, in which a special oil provides lubrication of rubbing parts and sealing of gaps. During operation, this oil is partially mixed with the refrigerant and circulates through the system, but the bulk of it is located in the compressor crankcase. During active shaking during transportation, oil can leak from the crankcase into the cooling circuit, filling the evaporator and condenser tubes.
If you turn on the unit immediately after delivery, when the oil has not yet flowed back into the reservoir, the compressor will begin to run “dry”. This leads to a sharp increase in the temperature of the rubbing surfaces, jamming of the piston group and, as a result, expensive repairs. In addition, oil getting into the heat exchanger reduces the cooling efficiency, since the oil film prevents normal heat transfer.
The second important aspect is the condition of the refrigerant. During sharp tilts, which are inevitable when moving equipment through doorways, liquid freon can enter parts of the system intended only for gaseous state. Trying to compress a liquid rather than a gas creates a water hammer that can destroy the compressor valves. That is why development engineers insist on maintaining a temporary rest interval.
The influence of temperature environment during the waiting period
One of the key factors that determines how long it takes to turn on the refrigerator is the air temperature in the room where it was delivered. The physical properties of materials and liquids directly depend on the thermal regime. The oil used in compressors has a high viscosity, which increases significantly at low temperatures. This means that it takes much longer for the oil to drain from the system back into the crankcase in the cold.
If the delivery was made in winter, when the temperature outside was below zero, and the refrigerator was brought into a warm room, condensation could form on the body and inside the unit. Moisture is harmful to electrical contacts and can cause a short circuit when voltage is applied. In such cases, it is necessary not only to let the oil settle, but also to completely evaporate the moisture.
Let's consider the dependence of the waiting time on the conditions:
- ❄️ Winter delivery: If the equipment was transported at sub-zero temperatures, the minimum acclimatization time is 4 hours, and the oil settling time is up to 8 hours.
- ☀️ Summer delivery: At air temperatures above +15°C, 2-3 hours are enough to stabilize all systems.
- 🌡️ Sharp temperature difference: If the difference between the temperature outside and indoors exceeds 10 degrees, increase the waiting time by 1-2 hours.
⚠️ Attention: Never try to speed up the process of drying condensate or heating the oil using a hair dryer, heater or other heating devices. Sharp local heating can deform the plastic elements of the case and damage the seals.
Transportation rules: horizontal or vertical
The position of the refrigerator during transportation is the second most important parameter that affects the start-up time. The ideal option is always vertical transportation with an inclination angle of no more than 40 degrees. In this position, oil is minimally displaced from the compressor crankcase, and the risk of it entering the cooling circuit is significantly reduced. Manufacturers, such as Samsung i Haier, often indicate permissible tilt angles in the instructions.
However, the realities of urban delivery, especially to the upper floors of buildings without freight elevators, often dictate their own conditions. You have to put the refrigerator on its side. In this case, it is important to know which side to place it on. It is usually recommended to lay the unit on its right side (looking at the door), since the compressor outlet pipe is often located on the opposite side. If you place the refrigerator on the left side, oil may leak directly into the outlet.
Transportation in a horizontal position requires a longer recovery:
- 🚛 Vertical transportation: 2 hours of rest before turning on is enough.
- 📦 Horizontal transportation (on the side): Minimum required 4-6 hours for the oil to completely drain into the crankcase under the influence of gravity.
- 🔄 Multiple turning over: If the refrigerator changed position many times during the transfer process, the settling time should be maximum - up to 8-10 hours.
What happens if you transport the refrigerator upside down?
Transporting the refrigerator upside down is strictly not recommended. In this position, the compressor, mounted on springs, can damage the internal suspension or come off the frame, which will lead to strong noise and vibration during operation.
Step-by-step instructions: preparing for the first start
After you have waited the required time, do not immediately load the products. The initial launch requires a number of preparatory steps that will ensure long and uninterrupted operation of the device. First, you need to remove all shipping elements: tape, foam corners, protective film and, most importantly, compressor clamps, if they are provided for in the design (usually these are bolts at the bottom back).
Next, you should thoroughly clean the inside of the chambers. Even a new refrigerator can smell like factory grease or plastic. Wipe all surfaces with a soft cloth soaked in a weak soda solution or a special product for cleaning household appliances. Do not use abrasive powders or aggressive chemicals, as they can damage the coating of the internal plastic.
☑️ Preparation for the first start
An important step is to install the refrigerator level. Use adjustable feet to ensure the unit is stable and does not wobble. The doors should close on their own by gravity when opened to 45 degrees. To check, use a building level and place it against the shelves. Incorrect installation will lead to loose fitting of the doors and increased load on the compressor.
| Preparation stage | Action | Importance |
|---|---|---|
| Removing the packaging | Remove all cardboard, film, tape | Critical |
| Cleaning | Wipe shelves and walls | High |
| Alignment | Level adjustment | High |
| Rest | Waiting 2-8 hours | Critical |
First launch and operation check
When all the preparatory stages have been completed, you can connect refrigerator to the power supply. Please note that during the first hours of operation the unit may make unusual sounds: gurgling, hissing or clicking. These are normal physical processes: the refrigerant begins to circulate through the system, expanding and contracting in the tubes. The compressor will work almost without interruption, trying to cool the empty chambers to the set temperature.
Do not load the refrigerator with food at once. Let it run idle for at least 2-3 hours. During this time, the temperature inside will stabilize, and the automation will turn off the compressor. If after the first cooling cycle the motor does not turn off within 5-7 hours, this may indicate a malfunction of the thermostat or a freon leak. In this case, the device must be turned off and called a technician.
Check the doors for tightness. Take a sheet of paper, clamp it with the door and try to pull it out. If the sheet is difficult to remove along the entire perimeter, the seal is working correctly. Pay special attention to the corners of the door, where gaps most often occur.
⚠️ Attention: If you smell burning plastic or see sparking in the area of the socket or plug, immediately unplug the appliance. This may indicate a defect in the wiring or electrical plug.
Typical errors when operating new equipment
Even Knowing the rules, users often make mistakes that shorten the life of the equipment. One of the most common is to install the refrigerator close to the wall or in a niche without gaps. For efficient operation of the condenser, which is usually located on the back wall or on the sides, free air flow is necessary. The minimum distance to the wall should be at least 5-7 cm.
Another mistake is placing the refrigerator next to heat itself: a gas stove, heating radiators or in direct sunlight. This causes the compressor LG, Bosch or any other brand to work overload, trying to compensate for external heat. As a result, energy consumption increases, and the motor's life is exhausted faster.
It is also worth mentioning the error of ignoring instructions. The user manual always indicates the specific requirements for a particular model. For example, some models with a system No Frost may have their own initial startup features related to the operation of fans and defrost sensors.
Is it possible to turn on the refrigerator through an extension cord?
The use of extension cords is not recommended, since they may not withstand the starting current of the compressor. If use is necessary, choose a cable with a cross-section of at least 1.5 mm² and a length of up to 3 meters.
Frequently asked questions (FAQ)
What happens if you turn on the refrigerator immediately after delivery?
There is a high probability that the compressor will fail due to lack of lubrication or water hammer. Oil that gets into the circuit will not have time to drain, and the mechanism will run “dry,” which will lead to jamming or burning of the winding.
Is it necessary to defrost a new refrigerator before turning it on for the first time?
New refrigerators, as a rule, do not require defrosting, since they have not been used. However, it is necessary to carry out sanitary treatment and allow the equipment to sit at room temperature.
Why does the refrigerator make a lot of noise after the first turn on?
In the first hours of operation, the compressor operates at maximum power to cool the empty volume. The sound of refrigerant circulating may also be heard. If the noise does not subside after reaching temperature, check the stability of the legs.
Is it possible to transport a refrigerator in the trunk of a car?
Only in a vertical position and provided that the height of the cabin allows it. Horizontal transportation in a passenger car is extremely undesirable due to strong shaking and the inability to securely secure large cargo.