The situation when the refrigerator Beko buzzes without interruption, and the food inside freezes or, conversely, begins to spoil, is familiar to many owners of household appliances. This condition, called "non-shutdown", is critical for a compressor that is designed for cyclic operation. A constant load leads to overheating of the motor windings and, ultimately, to costly failure of the main unit.
There can be many reasons for this behavior in Turkish brand equipment: from a banal clogged capillary tube to a malfunction of the control electronics. It is important not to ignore the first alarm signal, because even if the unit is still freezing, its resource is depleted with every minute of continuous operation. Understanding the principles of operation of the system No Frost or static cooling will help to quickly localize the problem.
In this article we will analyze in detail the mechanics of the process, consider typical malfunctions of sensors and thermostats, and also explain how to carry out initial diagnostics on your own. You should not immediately call a technician if you can independently eliminate simple operating errors or check the tightness of the doors. However, if it concerns the refrigerant or motor-compressor, professional intervention will be required.
Primary diagnostics and checking operating conditions
Before disassembling the unit or calling a repair team, it is necessary to eliminate external factors that often cause incorrect operation. Refrigeration equipment Beko, like any other equipment, requires compliance with the ambient temperature conditions. If the room is too hot, for example, in summer the temperature exceeds +30°C, the compressor may simply not cope with the heat removal.
It is also worth checking the tightness of the sealing rubber around the perimeter of the door. If warm air enters the gap, the system will try to compensate for the loss of cold by working non-stop. Inspect the hinges: the door may be warped and not pressed tightly. In models with the system Full No Frost a violation of the tightness also leads to freezing of the evaporator.
Pay attention to the location of the refrigerator. If it stands close to the wall or in a niche without gaps for ventilation, heat transfer is disrupted. The condenser (grid at the back or on the sides) must freely release heat to the atmosphere. Blocked vents are a common reason why the compressor does not go into rest mode.
⚠️ Attention: Make sure there are no heat sources such as radiators or stoves near the refrigerator. Local overheating of the rear wall can throw off the readings of the sensors.
Failures of the thermostat and temperature sensors
One of the most common reasons for the endless operation of the motor is the failure of the thermostat. In classic models Beko with mechanical control, this device is responsible for shutdown. It is located inside the camera or behind the control panel. If its contacts are “stuck” in the “on” position, the compressor will work until it burns out or is manually disconnected from the network.
In more modern models with electronic control, the control function is performed by temperature sensors (thermistors). These small resistance elements change their characteristics depending on the temperature. If the sensor “lies” and shows the control unit that the chamber is +10°C instead of the required +4°C, the “brain” of the refrigerator will keep the compressor on.
Diagnostics of the thermostat often requires removing it and checking it with a tester in different temperature conditions. For electronic sensors, accuracy of readings is important. Sometimes the problem lies not in the sensor itself, but in oxidation of the contacts on the control board or a break in the wiring going to the sensor.
How to check a thermostat with a multimeter?
To check a mechanical thermostat, it must be removed from the refrigerator. In a warm state, the contacts should be closed (the multimeter shows 0 Ohm or makes a squeak). Then the thermostat is placed in the cold (for example, in the freezer) for 15-20 minutes. After cooling, the contacts should open (the resistance tends to infinity). If the opening does not occur, the device is faulty.
Replacing the thermostat is a procedure accessible to a person with basic skills in working with the tool, but requires care. It is important to choose an analogue with identical characteristics, since different models Beko may require thermostats with different on and off temperatures.
Problems with refrigerant: leaks and blockages
If the refrigerator Beko hums, but does not give cold (or gives very little weak) and does not turn off, there is a high probability of problems with the refrigerant circuit. This could be a freon leak or a blockage in the capillary tube. In both cases, the system loses its ability to effectively cool, and temperature sensors record an increase in degrees without giving a command to stop.
When freon leaks, the pressure in the system drops. The compressor works, trying to build up pressure, but there is not enough refrigerant in the circuit for effective heat exchange. Visually, this can manifest itself in weak heating of the condenser (only at the beginning or in one corner) and the absence of the characteristic sound of gurgling or hissing during operation.
A clogged capillary tube is a violation of the patency of a narrow section of the line, often caused by the ingress of moisture or oil breakdown products. In this case, the compressor works with overload, trying to push freon through the plug. The pressure at the outlet of the compressor increases, but there is no cold in the evaporator.
| Symptom | Freon leakage | Capillary clogged |
|---|---|---|
| Temperature in the chambers | Higher normal | Above normal or uneven |
| Condenser condition | Partially warm or cold | Hot, especially at the compressor |
| Sounds during operation | Silence (no gurgling) | Hum, possible hissing |
| Actions | Search for leaks, soldering, refilling | Purge the system, replace the filter |
Solving these problems requires specialized equipment: a vacuum pump, a pressure gauge station and a supply of refrigerant. Repairing a leak or blockage on your own without experience and tools is almost impossible and dangerous.
Faults of the compressor and start relay
The heart of the refrigerator is the compressor. If it runs continuously, this may indicate a loss of performance. Over time, the piston group wears out, the valves lose their tightness, and the motor ceases to create the necessary pressure. It hums, vibrates, but does not pump freon at full strength.
Another important element is the starting relay. This small unit is responsible for starting the engine and turning it off when certain parameters are reached. If the relay is faulty, it may not break the power circuit, leaving the compressor on constantly. This is often accompanied by clicking or humming noises without starting.
In models Beko with inverter compressors the situation is more complicated. There is no classic starting relay, and starting and power control are carried out by an electronic unit. Failure of the inverter board results in the compressor being able to operate at maximum speed without going into economy mode or stopping.
⚠️ Attention: If the compressor feels very hot to the touch (it is impossible to hold your hand for more than 2-3 seconds), immediately unplug the refrigerator. Further work will lead to burning of the windings.
Failures in the operation of the electronics and control module
Modern refrigerators Beko are controlled by complex electronics. The control module (board) receives signals from all sensors and makes a decision to turn the compressor on or off. If a relay control element on the board burns out or a software failure occurs, the stop command may simply not be received.
Often problems with electronics arise due to power surges in the network. Even a short surge can damage sensitive components. Visually, traces of burning, swollen capacitors, or blackened tracks may be visible on the board.
Sometimes a complete system reset (reboot) helps. To do this, you need to disconnect the refrigerator from the power supply for 15–20 minutes. If after switching on the operating mode returns to normal, it means a software failure has occurred. If the problem recurs, the board needs to be diagnosed by a specialist.
☑️ Signs of electronics malfunction
The influence of the fast freezing mode and other settings
Do not forget about the human factor. Many users accidentally activate the Super Freeze (fast freezing) or maximum cooling mode. In this mode, the refrigerator is forced to remain on for a certain period of time (usually several hours) in order to quickly freeze large quantities of food.
Check the control panel. If the snowflake indicator or the inscription “Super” is on, it means that the mode is activated. In some models it turns off automatically after a set time, in others it requires manual shutdown. It is also worth checking that the temperature settings are not off.
If you have just loaded a large amount of warm food into the refrigerator, it will work longer than usual. This is a normal reaction of the system to a sudden increase in internal temperature. However, if after 24 hours of continuous operation the temperature does not stabilize, then there is a malfunction.
Frequent questions and answers (FAQ)
Why does the new Beko refrigerator not turn off?
In the first day after the first turn on or after long-term transportation, the refrigerator can work without stopping. This is necessary to reach the operating temperature and freeze all volumes. If after 24 hours it does not turn off, check the settings and how tightly the doors are closed.
Is it possible to use the refrigerator if it does not turn off?
For a short time - yes, but this is an emergency situation. Long-term operation without stopping leads to overheating of the compressor, thickening of the oil and eventual failure of the motor. Operation in this mode is fraught with expensive repairs or replacement of the unit.
How much does repair cost if the compressor burns out?
Replacing a compressor is one of the most expensive types of repairs, often amounting to up to 70% of the cost of a new refrigerator. In addition to replacing the motor itself, the system must be evacuated and refilled with freon. It is often more economically feasible to buy new equipment.
How to extend the life of a Beko refrigerator compressor?
Regularly defrost the refrigerator (if it is not No Frost), do not put hot foods inside, keep the condenser at the back clean and ensure good air flow to the back wall. It is also recommended to use a voltage stabilizer if there are surges in your network.