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[Did You Know About Cooling?] What should you do if your cooling fan becomes stuck after prolonged use?

Category:

Industry Trends

Release time:

2019-10-23

The faster a cooling fan spins, the better its cooling performance will certainly be. However, after using a fan for some time, you may notice that its rotation speed gradually slows down and the noise becomes significantly louder—almost as if it’s suffering from asthma. What could be causing this, and how can you fix it?
 
First, Cooling fan Working long-term under high temperatures It's possible that the lubricant has dried up.
Try turning the fan by hand. If you notice even the slightest movement or feel that there’s significant resistance when you turn it, it means the fan itself is fine—it’s just that the lubricant has dried up. In this case, disassemble the fan. Usually, there’s an adhesive sticker on the back side; peel it off, and you’ll see the fan’s shaft. Add some lubricant—such as motor oil—and then manually rotate the fan several times. Once you no longer feel any resistance or the resistance is very slight, reassemble the fan. That should pretty much solve the problem.
Second, the cooling fan’s rotational speed has not reached the normal speed required for the radiator to function properly.
We could try making some adjustments to the fan blades to ensure that their rotational speed meets the power requirements needed for the radiator to function properly. This not only solves the problem but also spares you the hassle of replacing the entire device. You’ll be able to see the fan’s shaft—just add a bit of lubricant, such as motor oil, and then manually spin the fan several times. Once you notice that there’s little or no resistance when you turn it, reassemble it, and the issue should be resolved.
Third, neglecting cleaning and maintenance.
Since the environment where the cooling fan is located tends to be dusty, or because the fan has been in use for a long time without much cleaning, it’s quite possible that the fan’s power supply will fail to spin properly due to excessive dust accumulation. This mainly happens because as more and more dust builds up, heat begins to accumulate inside the cooling fan, leading to poor heat dissipation within the power supply. As a result, the power supply becomes unstable, and the fan’s rotational speed also fluctuates. Therefore, it’s important to regularly maintain the cooling fan and clean it periodically.
 
The above is a sharing of knowledge on the classification of cooling fan structures. Shenzhen Jiangshanlai Electronic Technology Co., Ltd. is a large-scale enterprise integrating customization, R&D, manufacturing, sales, and service of DC brushless motors, DC cooling fans, DC brushless fans, DC stand fans, boosted cooling fans, miniature cooling fans, DC cooling fans, DC blowers, and non-standard fans. We are a wholesale manufacturer and supplier of DC fans. Our products are best-selling in Guangdong Province—including Shenzhen, Guangzhou, and Dongguan—as well as in Fujian, Zhejiang, and Jiangsu provinces.
 
If you have any needs, feel free to consult us.

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Next: [Did You Know About Cooling?] How Can We Improve the Quality of Cooling Fans at the Root?

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