Owners of household appliances often wonder about the internal structure of their units, especially when it comes to reliability and maintainability. Hotpoint Ariston refrigerator is a popular model on the market, and understanding the principles of its operation helps to properly operate the device for many years. The basis of the entire system is compressorwhich is often called the “heart” of the refrigerator, ensuring the circulation of the refrigerant.
The number of compressors directly affects energy consumption, noise level and freezing efficiency. Most modern models on sale are equipped with a single unit, but there are also dual-compressor systems that are considered more reliable for large storage volumes. It is important to understand this issue before purchasing or when the first signs of a malfunction occur.
In this article we will look in detail at how the cooling system works Hotpoint Ariston, what types of compressors are used and why their number matters. You will learn how to distinguish a model with a single motor from a dual-circuit system and what to look for when diagnosing breakdowns.
Design features of Hotpoint Ariston refrigerators
The company's engineering is aimed at optimizing space and energy efficiency. Standard Hotpoint Ariston refrigerator most often equipped with one compressor, which serves two circuits at once: the refrigeration and freezer compartments. This scheme is called single-circuit or, in the case of No Frost, double-circuit in air flow, but with one source of cold.
The use of one engine can significantly reduce the cost of the final product and reduce the dimensions of the rear wall of the device. This is especially important for built-in models, where every millimeter of volume matters. However, modern technologies make it possible to effectively control the temperature even with one motor thanks to electronic control.
It is worth noting that there are exceptions. Some premium models or large capacity refrigerators may be equipped with two separate compressors. This allows you to independently regulate the temperature in each chamber and increases the reliability of the system as a whole.
⚠️ Attention: The design of a particular unit always depends on the modification. Exact information about the number of compressors can be found in the technical documentation or on the characteristics sticker located inside the case.
One or two: how to determine the number of compressors
You can determine the number of motors visually, without resorting to complex tools. The easiest way is to look behind the back wall of the refrigerator. If you see one black barrel with pipes, it means you have one compressor. If there are two of them, they are usually located next to or above each other.
Also, the number of compressors can be determined by functionality. If the refrigerator allows you to independently turn off the freezer compartment while leaving the refrigerator compartment running, this is a sure sign of the presence of two motors or a complex valve system. This is rare in budget models.
Another sign is the level of noise and vibration. Dual compressor systems can be quieter because the load is shared between the two units and they take turns switching on. However, modern inverter models with one motor can also be virtually silent.
- 🔍 Inspect the rear panel: one motor or two?
- 🎛️ Check the independence of camera control in the menu.
- 🔊 Assess the noise level during startup and operation.
- 📜 Study the technical data sheet of the model.
Advantages and disadvantages of a single-circuit system
Most models Hotpoint Ariston are built on the basis of one compressor. This is a time-tested scheme that has its pros and cons. The main advantage is efficiency. One motor consumes less electricity than two, which has a positive effect on utility bills.
In addition, the simplified design means fewer connections and pipes, which reduces the likelihood of freon leaks. Repairing such a refrigerator is also cheaper, since replacing one unit costs less than servicing two.
However, there are also disadvantages. If a single compressor breaks down, the refrigerator stops working completely, and the food in both chambers begins to deteriorate. Also, the system may be less capable of quickly restoring temperature after defrosting or loading a large amount of warm food.
| Parameter | One compressor | Two compressors |
|---|---|---|
| Energy consumption | Low | High |
| Noise | Medium | Low (alternate operation) |
| Maintainability | High | More complex |
| Independence of cameras | Limited | Full |
Two-compressor models: when necessary
Models with two compressors usually belong to a higher price segment. They are ideal for large families where the refrigerator is used frequently and the doors are opened many times a day. Each motor serves its own circuit, which eliminates the mixing of odors between chambers.
This system allows you to use the “Vacation” mode, when the refrigerator compartment is turned off, and the freezer continues to operate as normal. This cannot be fully implemented on one compressor without complex and expensive solenoid valves.
Owners of such refrigerators note more accurate temperature maintenance. If you store a lot of frozen food or delicate ingredients that require consistent cold, a dual-compressor system is the best choice.
⚠️ Warning: Running two compressors at the same time can create a peak load on the electrical grid. Make sure that the wiring in the house can withstand this current, especially in older buildings.
Types of compressors used in Ariston appliances
In refrigerators Hotpoint Ariston you can find two main types of motors: conventional (linear) and inverter. Conventional compressors operate on an on-off principle. They reach the desired temperature and turn off, then the cycle repeats.
Inverter motors work constantly, but change the rotation speed. This allows you to maintain the temperature within a narrow range, avoid fluctuations and significantly save energy. In addition, they operate much quieter and last longer due to the absence of constant starting loads.
You can determine the type of compressor by the markings on the housing or by the nature of the operation. An inverter refrigerator hums smoothly and quietly, while a conventional one makes characteristic clicks when turned on and off.
- ⚙️ Linear compressor: reliable, inexpensive, but noisy.
- 🌀 Inverter motor: quiet, economical, durable.
- 🔧 Piston type: a classic design, common in budget models.
What is an inverter compressor?
This is an engine that does not turn off completely, but smoothly changes power. Unlike conventional motors, it does not experience overloads at start-up, which extends the life of the refrigerator by 5-7 years.
Typical faults and diagnostics
Regardless of the number of motors, they can fail. The most common problem is overheating. If the refrigerator is close to the wall or the radiator is clogged with dust, it compressor works with overload and may burn out. Power surges in the network are also dangerous.
Symptoms of a malfunction include lack of cold, continuous operation of the motor without shutting off, or a characteristic knocking sound when starting. Sometimes the refrigerator may hum, but not cool - this indicates a freon leak or blockage of the capillary system.
For diagnostics, you need to check the starting relay and motor windings. If the engine hums, but does not start, and after a few seconds the relay clicks, most likely the problem is in the starting device or jamming of the piston group.
☑️ Compressor diagnostics
Operation rules to extend service life
To The Hotpoint Ariston refrigerator served for a long time, it is important to follow simple rules. Do not put hot food inside as this will cause the compressor to work harder. Defrost the chamber regularly if the model is not equipped with a No Frost system.
Ensure good ventilation of the back wall. The distance to the wall should be at least 5-7 cm. Periodically clean the condenser from dust using a vacuum cleaner or soft brush.
Keep an eye on the door seals. If they do not fit tightly, the cold goes away and the engine is forced to work more often. Replacing a rubber band is much cheaper than changing a compressor.
The average service life of a Hotpoint Ariston compressor is 10-12 years, subject to operating conditions. Compliance with the room temperature (from +16 to +32 degrees) is also critical for stable operation of equipment.
Is it possible to replace a conventional compressor with an inverter one?
Theoretically this is possible, but it requires a complex modification of the control system. It is necessary to change the control board, sensors and, possibly, the throttle. Economically, such a replacement is often impractical; it is easier to buy a new refrigerator.
Why does the refrigerator hum after it is turned off?
This could be the sound of flowing refrigerant or thermal expansion of materials. If the hum is short and not accompanied by vibration, this is normal. A long hum may indicate problems with the fan or the motor itself.
How often should you let the refrigerator rest?
Modern models Hotpoint Ariston are designed to work 24/7. There is no need to forcibly turn them off for “rest”, unless you are leaving for a long period of time. In this case, the equipment should be defrosted, washed and left the doors open.