Finding where it is fan in the refrigerator Aristonbecomes critically important when the equipment stops coping with cooling or begins to make strange sounds. In models with the system No Frost it is this unit that ensures the circulation of cold air, distributing it evenly throughout the entire internal volume of the chambers. If you hear a hum, whistle or complete silence of the unit, most likely the problem lies in the blowing system.
Understanding the design is necessary not only to replace a failed part, but also for correct diagnosis. In 90% of Ariston models with No Frost, the fan is hidden behind the back wall of the freezer. You can get to it only by dismantling the protective panels, which requires accuracy and adherence to a certain sequence of actions. Ignoring problems with airflow often leads to the formation of an ice coat and failure of more expensive components.
Before starting disassembly, it is important to protect yourself and the equipment. Disconnect the device from the power supply and empty the chambers of food. In this article we will look in detail at how to find this unit in various modifications, what tools you will need and what to look for during inspection. The correct approach will avoid damage to plastic elements and fragile evaporator tubes.
The principle of operation of the No Frost system in Ariston technology
The system No Frost (without frost) in refrigerators Ariston works due to the forced circulation of air masses. Unlike a drip system, where the cold drops naturally, here a special electric motor with an impeller is responsible for air movement. It is located in a hidden niche, usually at the top of the freezer compartment, and forces air through the evaporator.
The cooled air passes through a system of ducts and enters the refrigerator compartment through special openings. It is then returned to the freezer to be re-chilled. This cycle ensures a stable temperature and no condensation on the walls. If fan stops working, the chain breaks and the cold stops flowing into the main compartment.
It is important to understand that the design may differ in different models. In some cases, a single powerful fan is used, in others a system with several dampers controlled by separate mechanisms is used. However, the principle of location remains the same: the motor is always in close proximity to the evaporator in order to effectively drive air through its fins. Ariston design may vary. In some cases, a single powerful fan is used, in others a system with several dampers controlled by separate mechanisms is used. However, the principle of location remains similar: the engine is always located in close proximity to the evaporator in order to effectively drive air through its fins.
⚠️ Attention: Trying to start a refrigerator with a faulty or jammed fan can lead to overheating of the motor windings and a short circuit in the electrical circuit.
For efficient heat transfer The impeller must rotate at a certain speed. If you notice that the food in the refrigerator compartment has begun to deteriorate faster, and the ice in the freezer is melting, this is the first sign of a circulation problem. Users often confuse these symptoms with a lack of freon, although the problem may lie in a simple mechanical breakdown of the blower unit.
Typical location of the unit in the freezer compartment
In most modern refrigerators Ariston with a system No Frost the fan is located in the top freezer parts. It is hidden behind a plastic panel, which also serves as the back wall of the compartment. To gain access to it, you need to completely defrost the unit and remove all shelves and drawers.
The design usually involves fastening the panel with plastic latches or screws. In some models, the screws may be hidden under decorative plugs or located deep in the niche. After removing the panel, you will see the evaporator (radiator) and the engine with the impeller attached next to it.
- 🔍 Visually inspect the space behind the back wall - often traces of ice or darkening are visible there.
- 🔧 Check the fastening of the panel - in models Ariston often used screws for a Phillips screwdriver.
- ❄️ Pay attention to the condition of the evaporator - it should not be covered with a thick layer of ice.
The location may vary depending on the year of manufacture of the model. In older versions, access to the fan could be easier, while in new energy-efficient models Ariston the design has become more compact and difficult to maintain independently. However, the logic of the engineers remains the same: maximum proximity to the cold source.
Sometimes the fan can be installed on the side of the evaporator or even under it, depending on the layout of a particular case. If you've removed the rear panel but can't see the engine right away, look at the side walls of the well. It can be mounted on a separate bracket, which also requires dismantling for full diagnostics.
Instructions for dismantling the back panel
To access the fan in the refrigerator Ariston it is necessary to perform a series of sequential actions. Do not rush to tear off the plastic by force, as at low temperatures it becomes brittle and breaks easily. Let the unit stand unplugged for at least 10-12 hours so that all the ice inside has time to melt.
Start by removing all removable elements of the freezer: shelves, containers and guides. Then carefully inspect the back wall. Look for screws around the perimeter or in the center of the panel. Some models Ariston may require special tools, for example, hexagons or screwdrivers with an extended blade.
☑️ Preparation for disassembly
After unscrewing all visible fasteners, carefully pull the panel towards you. It can be held on by plastic latches. Movements should be smooth, without jerking. If the panel cannot be removed, double-check for hidden screws that may have been covered by decorative elements.
After removing the panel, you will see the evaporator and fan. Be careful with wires that may go to temperature sensors or a light bulb. Damage to them will lead to new malfunctions. For ease of operation, you can move the panel to the side without disconnecting the wires, if the cable is long enough.
⚠️ Attention: Plastic in refrigerators Ariston after prolonged use becomes brittle. Warm it up with a hairdryer (carefully!) or defrost it longer if you feel strong resistance when removing it.
Diagnostics of fan faults
After gaining access to the unit, it is necessary to carry out diagnostics. Fan in the refrigerator Ariston may not work for several reasons: circuit break, bushing jamming, bearing wear or failure of control electronics. An initial inspection often reveals obvious defects.
Visually check the impeller for cracks or chips. If the blades are distorted, the balance is off, causing vibration and noise. Also inspect the engine mounting location: if it wobbles, the screws may have loosened or the rubber dampers have collapsed.
Try to manually turn the impeller. It should rotate easily and silently. If resistance, squeaking or binding is felt, the bearings are dry or rusty. In this case, lubrication or complete replacement of the unit will be required.
| Symptom | Probable cause | Check method |
|---|---|---|
| Strong hum or vibration | Wear of bearings, imbalance | Checking rotation by hand |
| No operating noise | Open circuit, burnt out motor | Ringing with a multimeter |
| Intermittent operation | Faulty defrost sensor | Defrost mode test |
| Whistling during operation | Foreign object hit | Visual inspection of the blades |
For electrical testing you will need a multimeter. Disconnect the fan power connector and measure the winding resistance. If the device shows an open circuit (infinity) or a short circuit (zero), the motor is faulty. It is also worth checking the voltage at the contacts with the refrigerator turned on (observing safety precautions) to make sure that current is flowing.
Replacement and maintenance of the blower unit
If the diagnostics confirmed a malfunction, fan in the refrigerator Ariston to be replaced. Repairing old engines is often impractical due to the low reliability of the restored components. New parts ensure stable operation and silence.
To replace, disconnect the wires from the old motor. They are usually connected through a connector or twisted and insulated. Memorize or take a photo of the color coding of the wires to correctly connect the new node. Remove the motor from the bracket by unscrewing the mounting screws.
Is it possible to lubricate the old fan?
Yes, if the reason is tight movement. Use synthetic refrigerator oil. Place 1-2 drops into the bushing hole and rotate the impeller. However, this is a temporary measure, and after 3-6 months the problem may return.
Install the new engine in place, securing it with screws. Connect the wires, ensuring reliable contact. If the connectors are different, use heat shrink or quality electrical tape to insulate the connections. Reassemble the panel in the reverse order, making sure that the wires are not pinched.
After assembly, turn on the refrigerator and listen to the operation. In the first minutes, the sound of the engine gaining speed can be heard. Make sure that after 10-15 minutes of operation, a flow of cold air is felt in the freezer.
Common mistakes during self-repair
When trying to find where fan is in the refrigerator Ariston, amateur craftsmen often make mistakes that aggravate the situation. One of the most common is an attempt to separate the back panel without completely defrosting it. Ice residue acts like glue, and the jerk can break the plastic fasteners or damage the evaporator tubes.
Another mistake is not checking the sensors. Often the fan itself is working, but does not receive a signal to turn on due to a faulty thermostat or defrost sensor. Replacing the working engine in this case will not solve the problem, and the money will be wasted.
- ⚠️ Using unsuitable lubricants that freeze at low temperatures and jam the mechanism.
- ⚠️ Violation of the chamber seal when opening the doors for a long time during repairs.
- ⚠️ Neglecting to check the integrity of the wires going through the doorway.
Also, do not use aggressive chemicals to clean parts inside the camera. They may damage the plastic or react with the metal of the evaporator. For cleaning, use only warm water and a soft cloth.
⚠️ Attention: When working with internal components of the refrigerator, always use dielectric gloves and tools with insulated handles to avoid electric shock.
Prevention and care of the cooling system
In order fan to serve in the refrigerator for a long time, it is important to follow the operating rules. Regular defrosting (even for the system Ariston served for a long time, it is important to follow the operating rules. Regular defrosting (even for systems No Frost at least once a year) helps remove micro-ice build-ups that can block the blades over time.
Keep the back wall of the refrigerator clean. Dust that accumulates on the condenser grille at the rear of the unit causes the compressor and fan to work harder. Periodic vacuuming will extend the life of the entire cooling system.
Do not overload the freezer with food so that it blocks the air circulation openings. Violation of airflow leads to local overheating of the fan motor. Products should lie freely, without interfering with the movement of air flows.
If you notice the first signs of unstable operation - rare clicks or changes in the sound of operation - do not delay diagnostics. At an early stage, the problem can often be solved by simple cleaning or lubrication, avoiding the purchase of new parts.
How often should you defrost an Ariston No Frost refrigerator?
Although the system is called “no frost,” manufacturers recommend completely defrosting and washing the refrigerator Ariston at least once a year. This is necessary to remove bacteria, odors and micro-ice, which is invisible to the eye, but makes it difficult for the fan to operate.
Is it possible to temporarily operate a refrigerator with a non-working fan?
Short-term operation is possible, but undesirable. Without air circulation, an ice coat will form in the freezer, and the temperature in the refrigerator compartment will rise. This will lead to damage to the products and increased load on the compressor, which will work without stopping.
Where can I find the part number to replace the fan?
The part number is usually indicated on the sticker of the engine itself or on the fan housing. It can also be found in the technical documentation (service book) of your model Ariston or on specialized websites according to the refrigerator article number.
Why does the fan only work when the door is open?
In many models Ariston there is a door opening sensor that forcibly stops the fan so that the cold is not blown out to the room. If it only works when the door is open, the sensor itself may be faulty or the control circuit is broken, and the system “thinks” that the door is open.