The situation when your Hotpoint-Ariston refrigerator ceases to maintain the required temperature always takes you by surprise. Products begin to deteriorate, and condensation or, conversely, an ice crust appears on the shelves. The control panel may glow steadily, blink, or go out completely, which disorients the owner. The first step is to carry out primary visual and auditory diagnostics to understand the scale of the problem.
In modern models, such as Hotpoint-Ariston HF 8201 W or older series, the failure of the cooling system is often associated not with a compressor failure, but with a software failure or blocking of the defrost system. It is important not to panic and consistently check simple causes before calling a technician or buying new equipment. Often the solution lies in incorrect settings or clogged ventilation ducts.
If you notice that the chamber temperature is higher than normal, but the engine is running, this may indicate a freon leak or a clogged capillary tube. However, if the motor is silent, the problem may be with the start relay or thermostat. Below we will analyze the main scenarios of the behavior of the equipment and how to eliminate them.
Primary diagnosis: is the hum of the motor audible?
The first thing you need to pay attention to is the sound of the engine. compressor. If the unit is plugged in, the power indicator is on, but there is silence inside, which means the start circuit is broken. This may be caused by a power surge, a tripped safety mechanism, or a failed start relay. In models with a system No Frost lack of sound often indicates that the electronic module does not give the command to start.
When the motor hums and tries to start, but after a few seconds there is a click and it goes silent, we are talking about a classic “wedge” or a problem with the start-protection relay. This situation is dangerous because the motor windings may overheat. If the refrigerator Hotpoint-Ariston hums but does not cool, you must immediately unplug it and let it cool for several hours.
Sometimes the compressor runs continuously without turning off, but the temperature in the chambers does not drop to the set values. This is a sure sign that the refrigerant is circulating but not performing its function. The reasons may lie in depressurization of the circuit or ineffective operation of the blower fan.
⚠️ Attention: If you smell a strong burning smell or see sparking in the compressor area, immediately disconnect the device from the power supply. Further operation may lead to a fire.
To accurately determine the condition of the motor, you can use a multimeter by checking the resistance of the windings. However, if you do not have the skills to work with electrical appliances, it is better to limit yourself to an external inspection.
Problems with defrosting in the No Frost system
Modern refrigerators Hotpoint-Ariston equipped with a sophisticated automatic defrosting system. If this mechanism fails, the evaporator becomes covered with a “coat” of ice, which blocks the circulation of cold air. As a result, it is warm in the main chamber, and a thick layer of frost is visible on the back wall of the freezer. Most often, the defrost heating element or temperature sensor fails.
You can check the hypothesis of a frozen evaporator by opening the back panel in the freezer (after defrosting the unit for at least 24 hours). If, after complete defrosting, the refrigerator started working normally, but after 2-3 weeks the problem recurred, it means that one of the elements of the defrost circuit is faulty. This requires replacing Heating element or thermostat.
It is also worth checking the drainage hole. If it is clogged with crumbs or ice, the melting water does not go into the pan, but freezes, forming an ice plug. This disrupts the entire system. You can clean the channel using a special wire or a syringe with warm water.
Error codes help to quickly localize the faulty unit, which greatly simplifies diagnostics.
Deciphering error codes on the display
Refrigerator electronics Hotpoint-Ariston is capable of independently diagnose many faults and display them in the form of alphanumeric codes on the control panel. This is an invaluable tool for the DIYer and advanced user. For example, a flashing indicator may indicate high temperature in the chamber, and letter combinations may indicate specific sensor failures.
Below is a table of the main error codes that may occur in case of cooling problems. Understanding their meaning allows you to immediately cut off non-working diagnostic versions.
| Error code | Problem description | Probable cause |
|---|---|---|
F01 |
Temperature sensor malfunction | Open circuit or short short circuit |
F02 |
Freezer sensor error | Failure of the sensor or oxidation of the contacts |
F04 |
Problem with the fan | Frozen blades or motor failure |
F05 |
Error defrost sensor | Incorrect evaporator temperature readings |
A03 / A04 |
High/Low temperature in the chamber | Door open, freon leak, weak compressor |
If the code is on on the display F04, this often means that the fan is not spinning due to frozen ice. In this case, a complete defrost may temporarily solve the problem, but will require checking the defrost circuit. Codes starting with Ausually indicate a temperature condition, and not a direct failure of the electronics.
The error is often reset by long pressing the defrost button or turning off the power for 15-20 minutes. However, if the physical malfunction is not eliminated, the code will appear again after the next operating cycle.
Refrigerant leak and problems with the compressor
The most unpleasant reason for the lack of cold is freon leak. Unlike washing machines, where the water is immediately visible, the gas evaporates imperceptibly. Signs of a leak are: hot side walls (normally they should be warm, but not hot), lack of cold when the compressor is running, and oily spots near the motor tubes.
The compressor in refrigerators Hotpoint-Ariston is the heart of the system. If it fails mechanically (knocking, rattling, jamming), its repair is impossible and a complete replacement is required. Modern inverter motors are quieter, but more sensitive to voltage changes. A surge in the network could damage not only the compressor itself, but also the control board.
⚠️ Attention: Filling a refrigerator with freon and searching for micro-leaks requires special equipment and a license. It is strictly forbidden to open the circuit yourself - it is dangerous and ineffective.
If you hear gurgling or hissing inside the cabinet after the motor stops, this may be a sign that the freon has left and only air or oil remains in the tubes. In such cases restoring the tightness of the circuit is the only way to bring the equipment back to life.
Often users confuse the failure of the compressor with a breakdown of the start relay. The relay is a small box on the back wall of the motor. Replacing it is inexpensive and can be done independently if you have the skills. If after replacing the relay the motor does not start, the problem is deeper.
Malfunctions of the thermostat and sensors
The thermostat (or its electronic equivalent) is responsible for turning the compressor on and off. If it is “stuck” in the “off” position, the motor simply will not receive the command to start. In mechanical models Hotpoint-Ariston this is a simple part with a bellows, in electronic models it is a complex sensor.
You can check a mechanical thermostat by closing its contacts directly. If the compressor starts, then the culprit has been found. In electronic models, diagnostics are carried out by testing the sensors with a multimeter and comparing their resistance with a table of ratings for a given temperature.
Sometimes the problem lies in the incorrect installation of the temperature controller. If the knob is turned to minimum, or the temperature is set too high in the electronic menu, the refrigerator will operate in an economical mode, which may not be enough to freeze a large amount of food.
It is also important to check the integrity of the wiring going to the sensors. Rodents or vibration could damage the insulation, which leads to a short circuit and erroneous readings on the control board.
The influence of seals and operating rules
Often the reason for “heat” in the refrigerator is trivial - a loose fit sealing rubber on the door. If warm air from the room constantly enters the chamber, the cooling system cannot cope with the heat influx. Check the rubber for cracks, adhering dirt or deformation.
A test with a sheet of paper helps identify weak points: hold the sheet with a door and try to pull it out. If it is removed without resistance, it means that the tightness in this place is broken. Dirty rubber should be washed with warm water and soap, and deformed tires should be straightened with a hairdryer or replaced.
It is also worth reviewing your loading habits. If you put a hot pan in the chamber or fill the shelves to capacity, disrupting the air circulation, the refrigerator will not be able to return to operating mode. Air must pass freely between the products.
When you need to call a technician
Despite the desire to save money, there are situations when DIY repairs are impossible or dangerous. If a freon leak is diagnosed, soldering of the tubes, replacement of the filter drier and evacuation of the system are required. You can’t do this without a professional pump and pressure gauges.
Replacing a compressor is also a complex procedure that requires working with an open flame (burner) and refrigerants. In addition, improper installation of a new motor can lead to rapid combustion. Electronic control boards Hotpoint-Ariston also require special tools for flashing or accurate diagnostics of components.
If you have completed all the initial diagnostic steps (defrosting, checking power, cleaning), but the refrigerator still does not cool, you probably need specialist intervention. Delay in such cases can lead to damage to all products and higher repair costs.
Why does the Hotpoint-Ariston refrigerator freeze but does not turn off?
This may indicate a freon leak (the compressor is trying to compensate for the lack of cold), a malfunction of the thermostat (it does not “see” that the temperature has already been reached) or damage to the door seal through which the cold goes away.
Is it possible to use the refrigerator if it has stopped freezing?
For a short time - yes, if you load already frozen products into it to preserve them. However, it is impossible to keep the equipment turned on for a long time in the event of a malfunction (especially if the compressor is running without stopping) - this will lead to its overheating and final failure.
How much does it cost to repair if the circuit is broken?
The cost depends on the location of the leak. If the tube is damaged in an accessible location, repairs will be cheaper. If the leak is in the foamed part of the case (evaporator), it is often necessary to install an external evaporator (“crying” on the back wall), which is a labor-intensive procedure.
How often do you need to defrost Hotpoint-Ariston No Frost?
The No Frost system does not require manual defrosting to remove ice. However, once every 6-12 months it is recommended to carry out a complete defrosting and washing for hygiene and checking the condition of the ventilation ducts, since ice can still accumulate unnoticed.