Cooler does not work on a laptop: causes and troubleshooting

Personal computers and laptops are equipped with mini fans called coolers. A mechanical device is turned on when the system performs too complex and energy-intensive operations, because of which the architecture of the system unit is very hot. To avoid overheating, hot air is drawn through the ventilation. When problems arise with the operation of the internal fan, the hardware shell of the laptop is at risk.

The main reasons for the failure of the cooler

There are a number of reasons why the cooling system in a laptop stops working, or does not work as it should. The list of the main ones:

1. Excessive pollution of the rotation mechanism. The insides of personal computers and laptops invariably start with dust. Not only that, in large quantities, the dust is electrified and can cause a malfunction of the microcircuit, but it also physically clogs the fan blades.
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2. Damage to the fan mechanism. It may happen that the blades in the cooling system break down on their own. The forerunner to this are the mechanical overload of the laptop itself, shaking, blows to the body.
3. Failure of the architectural elements responsible for the operation of the cooling system. The software part or microcircuit responsible for turning the cooler on or off was damaged due to mechanical actions or the activity of viruses in the system.
4. Temperature sensors failed. This problem is much less common than the previous ones, but it can also affect the cooler. Sensors are installed on the processor, video card or any board, which capture the rate of temperature increase on the part. When the temperature rises above the permissible mark, the fan starts to work until it drives it to an acceptable level. Due to a violation of their operation, the cooler will turn on and off for no apparent reason.

How to solve problems

Ways to deal with problems for each of the breakdowns:

1. In the case of contamination, the problematic part must simply be cleaned. This is done with a screwdriver or dust brush. How to access the cooler located inside the laptop is described below.
2. If the fan itself was damaged (the blades cracked, or the rotational element stopped working), then you will have to purchase a new one. Such parts cost about a thousand rubles in technical stores, you just need to know the processor model and the size of the old cooler.
3. If you find problems with system parameters (if the fan itself was normal and more or less clean), you need download an antivirus program and run a full scan of the laptop database for malware software. If the virus scan did not help, then you may have to change the entire motherboard. If possible, you need to try the fan on another board.
4. Temperature sensor failures are easy to verify. To do this, you need to download a special mini-program that displays various architectural parameters, including the temperature of the processor. If the temperature is different from the real picture, or its performance “jumps” under equal conditions - for example, on a laptop no processes occur, only the utility window is open, and the temperature rises and rises sharply - which means sensors damaged. You can fix this only by purchasing a new processor or removing the old fan and installing a third-party for external cooling.

We clean the cooler ourselves

To clean or replace the cooler, you need to disassemble the laptop. This should be done carefully, with the observance of step-by-step actions, so that you can then repeat everything. Disassembly Instructions:

1. Turn off the laptop completely and disconnect its cable from the power supply.
2. Remove the battery from the bottom of the case. This is done using special latches that hold the battery in the connected position.
3. Now you need to turn the device over (having previously closed it) and unscrew all the bot on which the bottom cover is attached. Bolts can be assembled in a bottle cap or other container so that they are not lost.
4. Now you need to detach the cover. Immediately below it is a hard disk and an optical drive, they must be disconnected and removed to the side.
5. After that, you should disconnect the cables of wires that block the path to the processor and video card. They should have fans mounted on bolts. To clean or replace, just unscrew the fan and disconnect the wire.
6. After completing all the manipulations, you need to assemble the laptop, repeating all the steps in the reverse order.