Proper start-up of refrigeration equipment after scheduled maintenance is not just a matter of convenience, but a critical stage for the longevity (durability) of the unit. Many equipment owners Ariston make the mistake of believing that it is enough to simply insert the plug into the pink network immediately after removing the ice. However, the compressor and refrigerant require time to stabilize, and the control system requires time to initialize correctly. Ignoring these nuances can lead to water hammer in the system or overload of electrical components.
During the defrosting process, the temperature regime of the internal components changes dramatically, approaching room values. The oil contained in the compressor may have changed its viscosity and become distributed throughout the piping system, taking time to return to the crankcase. If you ignore this physical process, starting the engine on “dry” or with oil in the cooling circuit is fraught with serious damage. Therefore, patience is the master’s main tool at this moment.
In this article we will analyze in detail the algorithm of actions that will allow you to safely activate your Ariston refrigerator. We will look at timing intervals, checking electrical connections and initial diagnostics of system operation. Following these rules will help to avoid costly repairs (expensive repairs) and will ensure stable operation of the equipment for many years.
Physics of the process: why you can’t turn on the equipment right away
The refrigeration cycle is based on the circulation of the refrigerant and the compression of gases. During defrosting, when the unit is disconnected from the network, the pressure in the system is equalized, and the oil, which is usually located in the lower part of the compressor, can partially flow into the evaporator or condenser. Instant start the compressor in this state creates the risk of so-called water hammer. Liquid oil, having entered the compressor cylinder, is not compressed, but creates excess pressure that can damage the valves.
In addition, the control electronics, especially in modern models with the system No Frost or Low Frost, must undergo a self-test cycle. A sudden voltage surge when turned on after a long period of inactivity can trigger false errors in the control module. The system must “understand” that the defrosting cycles have been completed, and the temperature sensors show the current ambient values.
⚠️ Attention: An attempt to start the compressor earlier than 2-4 hours after defrosting can lead to jamming of the piston group. This damage is not a warranty case and requires complex restoration or replacement of the unit.
It is also worth considering the thermal inertia of materials. The plastic of the inner chambers, door seals and insulation must be completely dry. Residual moisture in hard-to-reach places during sudden cooling can turn into an ice crust that will block the air dampers or damage fragile cladding elements. Complete drying is a prerequisite before turning on power.
Preparatory stage: checking before connecting
Before pressing the power button or plugging the cord into an outlet, it is necessary to conduct a visual and tactile inspection of the unit. Make sure that all internal surfaces of the chambers Ariston are completely dry. Pay special attention to the area around the evaporator (if visible) and the drain hole. The presence of water may cause a short circuit when it comes into contact with electrical components of the defrost system.
Check the integrity of the power cord and plug. During downtime and movement (if the refrigerator was moved to defrost), the cable could be accidentally damaged. Insulation should be free of cracks and creases. If you notice any defects on the wire, it is strictly forbidden to connect the device to the network - this is a direct threat to fire safety.
Make sure that the refrigerator is level. Use a building level or just rock the body. Uneven load on the legs can cause vibration and noise when the compressor operates. Adjusting the height of the support screws is a simple procedure that significantly reduces noise levels. The gap between the rear wall of the refrigerator and the wall of the room must be at least 5-7 cm for normal air circulation around the condenser.
If the model is equipped with a water filtration system or an ice maker, check the condition of the water hoses. They must not be twisted or pinched. If you turned off the water supply during defrosting, make sure that the valve is open and the pressure in the water supply system corresponds to the standard specified in the technical data sheet Ariston.
Time intervals: how long to wait before starting
The question “how long should the refrigerator sit” is one of the most common. The answer depends on the conditions under which the defrosting took place and the model of the device. The standard rule is that the settling time should be no less than the time the refrigerator was turned off, but not less than 2-4 hours. This time is necessary for the oil to drain and stabilize the freon pressure.
If defrosting was carried out in a cold room or in winter with the window open, the waiting time should be increased to 6-8 hours. A sudden temperature change when turned on can cause condensation inside the electronic boards. Heat balance must recover completely. Room temperature is the ideal condition for preparing equipment for work.
| Defrost conditions | Minimum settling time | Recommended action |
|---|---|---|
| Standard room temperature | 2-3 hours | Checking the dryness of the chambers |
| High humidity in the room | 4-5 hours | Ventilation of the room |
| Cold room (below +15°C) | 6-8 hours | Warming up the room to normal |
| Long-term storage without operation (>1 month) | 8-12 hours | Full diagnostics of units |
It is important to understand that haste in this matter will not bring any benefit. It's better to wait an extra hour than to replace the compressor. In modern models Ariston with inverter motors, the requirements for voltage stability and temperature conditions are even higher, since the control electronics are more sensitive to transient processes.
What happens inside the compressor during standstill?
During downtime, the oil, which is mixed with freon or sprayed throughout the system, is under the influence of gravity flows back into the compressor crankcase. If you turn on the motor ahead of time, it will start working without lubrication, which will lead to rapid wear of the rubbing parts and overheating.
Algorithm for turning on the Ariston refrigerator for the first time
When the settling time has expired and all checks have been passed, you can proceed to the actual start-up. Work consistently to control each step of the process. This will help you notice anomalies in the operation of the system in time.
- 🔌 Connecting to the network: Insert the plug into a separate grounded socket. Do not use extension cords or tees as compressor inrush currents may be high. Make sure that the contact is reliable.
- 🔘 Activation: Press the power button on the control panel or turn the thermostat from the "0" or "Off" position to operating mode. The indicators should light up on the display.
- 🔊 Listening: In the first seconds after turning on, listen to the sounds. You may hear a slight humming or gurgling sound - this is normal, the refrigerant is starting to circulate. There should be no loud knocks or clicks.
- ❄️ Temperature control: Set the temperature to the average value (usually +4°C for the refrigerator compartment). Do not try to immediately set the “Super Freeze” mode, this will put an extra load on the unit that has not yet entered the mode.
⚠️ Attention: If, after turning on, you hear a loud metallic knock, grinding noise or smell a burning smell, immediately disconnect the device from the power supply. Restarting without diagnostics is prohibited.
Once started, the compressor will operate continuously until it reaches the set temperature. This can take from 2 to 6 hours depending on the volume of the chambers and ambient temperature. During this period, do not open the doors unless absolutely necessary, so as not to disrupt the cooling process.
☑️ Checklist before loading food
Diagnostics of operation after startup
The first hours of operation is a test mode for your Ariston refrigerator. It is important to ensure that all systems are functioning correctly. The main indicator of proper operation is cyclicity. The compressor should turn on, cool the chamber to the set values and turn off (or reduce the speed in inverter models).
Check the uniformity of cooling. 3-4 hours after switching on, carefully touch the shelves. The cold should spread gradually. If there is already ice in the refrigerator compartment and warmth in the freezer, this is a signal of a malfunction of the air distribution system or a freon leak. Uniform cold is a sign of serviceability.
Pay attention to the operation of the system No Frostif it is provided model. You should not feel strong air currents blowing on the food, or hear the constant noise of a fan that either subsides or resumes chaotically. The fan runs on a timer and only when the compressor is running or the circulation mode is turned on.
It is also worth checking the doors. After startup and cooling begins, the plastic and metal may shrink slightly, which may cause the door to close tighter or, conversely, not fully seal. If after a day you notice that the seal does not retain heat, you may need to readjust the hinges.
Loading with food and entering the mode
Full loading of the refrigerator with food is possible only after it has reached the operating temperature mode. This usually takes about 24 hours. Loading with warm food early will negate all defrosting efforts and cause the compressor to work hard trying to cool a large amount of heat.
Load food gradually. Place those that require strong cooling first, but do not fill the chambers to capacity. Air circulation should be free. In models Ariston with the Multi Air Flow system, it is important not to block the cold air outlets on the back wall.
If you have products that require freezing, turn on the function Super Freeze (Super Freeze) for 2-3 hours before they are laid. This will create the necessary supply of cold in the freezer. Do not forget to turn off this mode after a day so that the system switches to an economical operating mode.
Compliance with storage rules will extend the life of the products and the refrigerator itself. Do not place hot food inside - this increases humidity and stress on the system. Use containers with lids so that odors do not mix and moisture does not settle on the walls, forming ice.
What should you do if the refrigerator hums louder than usual after turning it on?
An increased hum in the first hours of operation may be caused by the fact that the compressor is working at full power, cooling the heated chambers. Also, the oil may not have been completely distributed yet. If after 24 hours the noise does not subside or vibration appears, check whether the condenser tubes are touching each other or the body, and make sure that the refrigerator is standing stable.
Is it possible to turn on the refrigerator in the freezer immediately after defrosting in winter?
It is strictly not recommended to turn on the refrigerator if the room temperature is below +10°C. The oil in the compressor thickens, making starting and lubrication difficult. The refrigerant may also not circulate correctly. Allow the equipment to warm up to room temperature while turned off for 24 hours before starting.
Do you need to wash the inside of the refrigerator before turning it on for the first time?
Yes, after defrosting, the smell of stagnant water or detergents may remain inside. Wipe the chambers with a soda solution or a special household appliance cleaner, then wipe dry. This will improve hygiene and prevent mold from appearing in hard-to-reach places.
Why does water form on the back wall of the refrigerator compartment?
In refrigerators with a drip defrost system (crying wall), the formation of condensation and its flow into the drainage hole is a normal operating process. If the water does not drain, check to see if the drain hole is clogged with crumbs or ice. Carefully clean it with a special swab or cotton swab.