The brand's refrigeration equipment Hotpoint Ariston has been holding a strong position in the household appliances market for many years, famous for its reliability and thoughtful functionality. However, like any complex mechanism, these units require periodic maintenance or repair, and most often questions arise specifically about the main unit - the compressor. Understanding which motor is installed in your refrigerator is critically important when diagnosing malfunctions, selecting spare parts for replacement, or attempting DIY repairs.
It is important to immediately note that the Indesit Company concern (now Whirlpool Corporation), which owns the brand, does not produce compressors on its own, but purchases them from specialized world industry leaders. Depending on the year of manufacture, model of the refrigerator and even the delivery batch, completely different units can be used in the same housing. This makes the identification task not as simple as it might seem at first glance, and requires a careful approach to the study of technical documentation.
In this article we will analyze in detail which brands and types of compressors are most often found in technology Hotpoint Ariston, what are their design features and how to correctly determine the model without relying on guesswork. You will learn about the differences between linear and inverter models, understand the specifics of refrigerants and get answers to questions that are often ignored in superficial reviews.
Main suppliers of compressors for Hotpoint Ariston
Analysis of service manuals and actual repair practice shows that the lion's share of refrigerators Hotpoint Ariston is equipped with products from three main giant factories. The first on the list is traditionally the Italian company Aspera (previously known as part of Embraco Europe). It is these compressors that are considered “native” for European assembly and are found in most models produced at factories in Russia (Lipetsk) and Italy.
The second key player is the Danish-German concern Danfoss (Secop). These units are highly reliable and are often installed in more budget or medium-sized refrigerator models. The third supplier is Embraco (Brazilian or European branch), whose compressors can also be found, although in recent years their share in assemblies for the CIS market has decreased slightly in favor of Aspera.
It is worth mentioning Chinese analogues, such as Jiaxipera or GMCC, which may be found in separate batches or specific models assembled for certain markets. However, for classic refrigerators Hotpoint Ariston the dominant standard remains the European assembly under the Aspera brand. The choice of supplier is often dictated by logistical feasibility and the availability of components at the time of assembly of a particular batch.
⚠️ Attention: Do not try to determine the manufacturer of the compressor only by the appearance of the refrigerator case or its color. Within the same model (for example, HF 18), completely different motors could be installed in different years.
Technical characteristics and types of motors used
Most refrigerators Hotpoint Ariston are equipped with sealed piston low pressure compressors. This is a classic, time-tested design, where the motor-compressor is enclosed in a sealed steel casing. The main difference lies in the type of start and control: there are models with a conventional start relay and more modern options with an electronic control system.
Particular attention should be paid to the refrigerant used, since the type of oil and the design of the compressor directly depend on this. In older models (manufactured before 2010-2012) you can still find R134a, but the absolute standard for modern technology Hotpoint Ariston has become environmentally friendly freon R600a (isobutane). Compressors for R600a, as a rule, have lower performance and a smaller discharge volume, which makes them more compact and quiet.
In premium segments and models with the latest generation No Frost function, inverter compressors can be installed inverter compressors. Their main difference is the ability to smoothly regulate the speed of rotation of the motor shaft, and not work in the “on-off” mode. This provides more accurate temperature control, low noise levels and energy efficiency class A++ or A+++. However, such systems require complex electronics to control and are more expensive to repair.
What is the difference between R134a and R600a?
Freon R600a (isobutane) is an explosive gas, so its refilling requires special care and special equipment, unlike R134a. However, R600a has better refrigeration properties and less impact on the ozone layer, which has allowed it to become the industry standard.
Compressor power varies depending on the volume of the refrigerator and freezer compartments. For standard two-chamber models with a height of 185-200 cm, units with a capacity of 1/5 to 1/4 horsepower (HP) are usually used. The exact parameters are always indicated on the factory sticker, and they cannot be ignored when replacing, since installing a more powerful motor will lead to frequent thermostat shutdowns, and a weaker one will lead to insufficient cold.
How to determine the compressor model by the nameplate
The most reliable way to find out which particular compressor is installed in your refrigerator Hotpoint Ariston is a visual inspection of the nameplate (sticker or metal plate) located directly on the motor housing. You can find it at the bottom of the unit, at the back; this often requires removing the protective cover or cardboard panel covering the technical compartment.
The nameplate contains a lot of encoded information, which may seem like an incoherent set of symbols to an uninitiated person. However, knowing the structure of the marking, you can easily read the necessary data. First of all, you should be interested in the manufacturer's logo (Aspera, Danfoss) and a line with the model, which usually begins with letters (for example, T or H) and contains numbers.
The label also indicates the supply voltage (usually 220-240V), frequency (50Hz), type of refrigerant (Refrigerant) and the amount of oil. Sometimes there is also a QR code or barcode, reading which can provide additional information through service databases, but for a household user text markings are sufficient.
Below is a table with examples of common markings that can be found on equipment of this brand:
| Manufacturer | Example model | Refrigerant type | Features |
|---|---|---|---|
| Aspera (Embraco) | T 60 N | R600a | Low temperature, LBP |
| Danfoss (Secop) | BD35F | R134a | Often for freezers |
| Aspera | NL9F | R600a | Standard for 2-chamber |
| Embraco | EGU80HLD | R134a | Powerful models |
Inverter versus conventional: what is in your model
The issue of engine type is becoming increasingly relevant as the market is gradually moving to energy-efficient technologies. In refrigerators Hotpoint Ariston old and mid-price segments, classic ones are widely used linear compressors. Their operation is cyclical: the motor turns on at full power, cools the chamber to the set temperature and turns off until the next temperature increase.
Inverter systems, which can be found in top-end lines, work differently. They do not turn off completely, but only reduce the speed to a minimum, maintaining the temperature regime. This avoids voltage surges in the network during startup and significantly reduces noise. The type of compressor can be determined by the absence of a characteristic relay click when “starting up” - the inverter operates almost silently and continuously.
From the point of view of maintainability, classic compressors win. They are easier to diagnose, easier to replace, and the cost of spare parts is much lower. Inverter motors are sensitive to voltage fluctuations and the quality of the electrical network, and their control board (inverter unit) is an expensive component, the failure of which is often equal to the cost of the compressor itself.
⚠️ Attention: You cannot replace a conventional compressor with an inverter one (and vice versa) without completely replacing the electronic control board and reprogramming the system. These are technically complex and economically impractical operations.
Diagnostics of faults and signs of wear
Understanding which compressor is in your Hotpoint Aristonhelps to more accurately diagnose the problem. For example, if you have a model with an R600a and an Aspera compressor, then the characteristic “gurgling” sound when the engine stops is normal and not a sign of a breakdown. However, there are symptoms that cannot be ignored.
One of the main signs of a malfunction is overheating of the compressor casing. If, when touching with your hand (being careful!), you feel that the metal is hot to such an extent that it is impossible to hold your finger for more than a second, this may indicate an interturn short circuit of the windings or loss of compression. Also an alarming signal is the situation when the engine hums, tries to start, clicks the relay, but does not start.
Another common scenario is that the compressor runs continuously without turning off, but the temperature in the chambers does not drop to the required values. This may indicate a loss of performance (wear of the piston group) or a freon leak. In the case of R600a leaks occur less frequently due to the larger gas molecule, but the quality of soldering of the tubes plays a decisive role here.
☑️ Primary diagnostics of the compressor
It is also important to pay attention to vibration. Excessive shaking of the refrigerator body when the motor is running may indicate destruction of the internal shock absorbers of the compressor suspension or loosening of the mounting bolts on the frame. In models Hotpoint Ariston with two compressors (separately for the refrigeration and freezer compartments), a malfunction of one of them leads to loss of cold in only one compartment, which simplifies localization of the problem.
Nuances of replacement and selection of analogues
If diagnostics showed that compressor is faulty and needs to be replaced, the question arises of selecting an analogue. Ideally, you need to look for an exact copy based on the model. However, if the original Aspera or Danfoss is discontinued, you have to select a replacement according to the parameters. The key characteristics are capacity (in cm³/h or BTU), refrigerant type, oil type (POE or Mineral) and overall seat dimensions.
When installing a new compressor, especially if the oil type has changed or the model is significantly different, strongly recommended produce flushing the refrigeration circuit with nitrogen. Residues of old oil or decay products of a burnt out motor can quickly damage the new unit. Also, the filter-drier, which absorbs moisture and dirt, must be replaced.
The process of soldering tubes of compressors operating on R600arequires special care due to the explosiveness of isobutane. Work must be carried out in a well-ventilated area, away from open fire, in compliance with all fire safety measures. After soldering, the system must be evacuated for at least 15-20 minutes before recharging with refrigerant.
⚠️ Attention: Specifications and availability of spare parts may vary. Before ordering a compressor, always check the data with current supplier catalogs or contact the brand’s authorized service center.
Often asked questions (FAQ)
Is it possible to replace the Aspera compressor with an analogue from another refrigerator?
Yes, it is possible, but only if the basic technical parameters match: power, performance, type of refrigerant and oil, as well as overall dimensions. A simple brand match does not guarantee correct operation.
Why does the Hotpoint Ariston compressor hum loudly?
The hum can be caused by wear of the bearings, loosening of the mounting bolts, improper installation of the refrigerator (misalignment) or the nearing end-of-life condition of the motor itself. If the hum appears suddenly and is accompanied by vibration, this is a sign of a malfunction.
How long does the compressor in these refrigerators last on average?
The average service life of high-quality compressors (Aspera, Danfoss) is 10-15 years or more, subject to operating conditions. However, overloads, power surges and rare defrosting (for Direct Cool systems) can shorten this period.
Is it necessary to change the thermostat when replacing a compressor?
Not necessary if the old thermostat is working and calibrated correctly. However, if the reason for the combustion of the compressor was the “sticking” of the thermostat contacts, its replacement is mandatory, otherwise the new motor will suffer the same fate.