Modern refrigerators Bosch are famous for their reliability and energy efficiency, but even the most advanced equipment requires the correct approach when restarting. Often users are faced with the need to turn off the unit for defrosting, general cleaning, or when moving. The process of reactivating the device seems simple, but ignoring the technical nuances can lead to a reduction in the life of the compressor or a violation of the temperature regime.
The main problem that owners face after returning power or completing a wash is the rush. Instant start of the compressor without first checking the systems or insufficient time to stabilize the refrigerant are common causes of breakdowns. It is important to understandthat the electronics and mechanics of the refrigeration circuit require certain conditions for normal startup.
In this article we will analyze in detail the algorithm of actions that will protect your equipment from overloads. We will look at the differences in the behavior of equipment after planned defrosting and after long-term transportation, since these scenarios require a fundamentally different approach to the waiting time before turning on.
Assessing the state after transportation and rest
Before pressing the power button, it is necessary to analyze the context of the previous shutdown. If the refrigerator was simply standing without electricity in a warm room (for example, during defrosting), there is only one procedure. If the unit was transported, especially in a horizontal position, the physics of the oil circuit comes into force.
During transportation, oil from the compressor could flow into the heat exchangers of the evaporator or condenser. An attempt to start the engine in this condition will lead to dry operation, which causes critical wear of the rubbing parts. Also, the oil in the system can create an “oil plug” that prevents the circulation of freon.
Equipment Bosch is characterized by high sensitivity of compressors to the quality of lubrication. Therefore, if the device was in a horizontal position or was simply tilted strongly (more than 40 degrees), it is necessary to wait a certain time in a vertical position. Typically, manufacturers recommend from 2 to 4 hours, but in winter at low ambient temperatures, it is better to increase this period to 6-8 hours.
⚠️ Attention: If the refrigerator is brought in from frost, do not turn it on immediately. Allow the equipment to warm up to room temperature for 3-4 hours to avoid condensation on electrical contacts and cracking of plastic elements.
Preparing for the first start-up of the power supply
After you have waited the required time, you should conduct a visual inspection and prepare the power supply. Do not rush to insert the plug into the socket. First of all, check the integrity of the power cord and the condition of the plug. On the case Bosch there should be no visible damage, chips or dents that could have formed during movement.
Make sure that the outlet to which the refrigerator will be connected is working and grounded. The use of extension cords or tees is not recommended as they can cause poor contact and heating of the wiring. For stable operation of electronics, voltage must be stable.
Check the internal space of the cameras. Make sure all shipping locks (if they were inside) are removed. Shelves must be installed correctly and doors must close tightly. If the smell of plastic or packaging remains inside, wipe the surfaces with a damp cloth and a mild detergent.
☑️ Check before turning on
An important step is checking the tightness. Close the door and look at the seal around the perimeter. It should fit snugly to the body along its entire length. If you notice gaps, the cold will leave, forcing the compressor to work continuously, which is especially harmful after inactivity.
The sequence of turning on and setting up the electronics
Modern models Bosch, especially the series VitaFresh or NoFrost, are equipped with complex electronics. After connecting to the network, do not wait for the compressor to start immediately. You will hear a characteristic click, the control panel will light up, but the engine may start with a delay of several minutes. This is normal operation of the protective relay.
Various indicators may appear on the display. The alarm symbol (flashing triangle or exclamation mark) often lights up, indicating an increase in the temperature inside the chambers. Don’t be alarmed, this means that the sensors detect heat and the system begins active cooling work.
If your model is equipped with a button Super or Super Cool, it can be activated to quickly set the temperature. However, in normal mode, after idle time, it is better to let the equipment return to mode on its own. The electronics itself optimizes the operating cycles.
Why does the refrigerator hum immediately after switching on?
In the first minutes of operation, more intense noise is possible. This is due to the fact that the refrigerant begins to actively circulate through the system, and the oil is distributed among the components. If the hum does not subside after 30-40 minutes or turns into a knock, diagnostics is required.
Set the required temperature conditions. For the main compartment, the optimal value is the range from +3 to +5 degrees Celsius. It is recommended to set the freezer to -18 degrees. You should not immediately set the minimum possible temperature, this will create an excessive load.
Table of error codes and indications at start
When turned on, the refrigerator conducts self-diagnosis. If the system detects a malfunction, an error code will appear on the display or the corresponding indicator will light up. Below is a breakdown of the most common signals that may occur during the first start.
| Indication / Code | Value | User actions |
|---|---|---|
| Flashing triangle (!) | Temperature is higher norms | Normal at start. It will pass in 2-4 hours. |
| Code E03 or E05 | Temperature sensor error | Check whether the products are pressed against the sensor. |
| "Super" indicator | Super freeze mode | Turn off manually after 24 hours, if not turned off. automatically. |
| Filter indicator | Replacing the carbon filter | Relevant for models with an air purification system. |
If a constant alarm signal is on the display, although more than 6 hours have passed, check that the doors are closed tightly. Sometimes a foreign object (for example, the edge of a towel or a bag) interferes with the tight seal of the seal, and the system detects a cold leak.
In models with a display on the door, the settings may be reset to factory settings after a long disconnection from the network. You will need to re-set the desired parameters using the touch buttons or the rotary dial, depending on the modification Bosch.
Loading food and entering mode
One of the most common mistakes is instantly loading the refrigerator with food immediately after turning it on. An empty refrigerator cools faster and more evenly. If you put warm food into cooling chambers, the compressor will work at its limit, trying to cool a large volume of heat.
It is recommended to wait at least 2-3 hours after switching on before starting to fill the chambers. During this time, the walls of the chambers will cool down, and the thermostats will signal that they are ready to maintain the cold. It is better to load the first batch of food into an already cooled space.
Distribute food evenly without blocking the vents. In refrigerators Bosch with a system multi-flow cooling air should circulate freely between the shelves. A tightly packed refrigerator will take longer to reach the set temperature.
⚠️ Attention: Do not fill the freezer with a large amount of room temperature food at once. Load them in small portions at intervals of several hours so as not to disturb the temperature balance.
Frequent problems and their solutions
Even if turned on correctly, nuances may arise. For example, the refrigerator may not start even though the light is on. This may indicate a faulty start relay or thermostat. If you hear clicks, but the motor is silent, the thermal protection may have triggered.
Another situation is that the refrigerator works, but does not freeze. In the first hours this is normal. However, if after 5-6 hours the temperature does not drop, and a uniform layer of frost does not appear on the back wall of the main chamber (in drip models) or cold air does not blow (in NoFrost), freon may have leaked during transportation.
Noisy operation can also bother users. Make sure the refrigerator is level. Adjustable supports allow you to compensate for uneven floors. If the device is skewed, the vibration of the compressor is transmitted to the body, creating a hum.
Questions and answers (FAQ)
How long can you load products after switching on?
The optimal waiting time before the first load is 3-4 hours. During this period, the chambers will cool down to temperatures close to operating temperatures, which will allow the products not to deteriorate and will reduce the load on the compressor.
Why does the red alarm indicator light up after switching on?
A red indicator or flashing symbol means that the temperature inside the chambers is higher than safe. This is a normal situation immediately after switching on. The indicator will go out on its own when the temperature drops to the set values (usually after 4-6 hours).
Is it possible to turn on a Bosch refrigerator immediately after defrosting?
Yes, if defrosting was carried out without tilting or moving the equipment. It is enough to wipe the cameras dry and make sure that there are no puddles inside. In this case, it is not necessary to wait several hours, as during transportation.
What to do if the refrigerator makes gurgling sounds?
Gurgling and overflowing of liquid is the normal sound of refrigerant circulating in the system. It is heard especially often in modern models with environmentally friendly freons. If the sounds are not accompanied by knocking or vibration, there is nothing to worry about.
Do you need to set the time on the display after each shutdown?
Most models Bosch have a built-in memory or battery that stores the time and temperature settings for short-term shutdowns. However, if there is a prolonged blackout, the settings may be lost and will have to be set again manually.