How should I handle a DC cooling fan that has malfunctioned?
Category:
Industry Trends
Release time:
2020-08-10
As industry continues to develop and expand, the number of machinery and equipment purchased will also increase. To extend the service life of this equipment, it is necessary to apply... DC cooling fan Let’s talk about cooling it down. However, we’ll find that after using a DC cooling fan for a while, it sometimes stops spinning altogether or starts running erratically—slowing down and speeding up unexpectedly, just like a cassette tape getting stuck. So, what should we do if our DC cooling fan breaks down?
As a machine, it’s inevitable that malfunctions will occur. The first thing we shouldn’t do is immediately replace the faulty component. Instead, we must identify the root cause within the DC cooling fan itself. If the fan on the heatsink has stopped rotating, one likely reason is that its rotational speed hasn’t reached the normal level required for the heatsink to function properly. As a result, the DC cooling fan won’t generate sufficient power to operate effectively, leading to slow rotation or even complete failure to spin. Naturally, this will significantly reduce the heatsink’s cooling performance compared to its original state. At this point, we can try adjusting the fan blades slightly to ensure that their rotational speed meets the heatsink’s operational power requirements. By doing so, not only will we resolve the issue, but we’ll also spare you the hassle of replacing the entire device.
If the DC cooling fan is frequently replaced, this can also lead to such failures. Some people might argue: “I often replace the cooling fan with a new one—doesn’t that keep the machine in top working condition? Why isn’t this okay?” Actually, the equipment we use doesn’t necessarily require constant replacement of new fans; the most important thing is to find the DC cooling fan that’s truly the best fit for your specific needs.
Another situation is that, right after the DC cooling fan is turned on, its rotational speed is relatively slow and it generates considerable noise; however, after a while, the fan returns to its normal operating condition. Even after replacing the fan with an identical one, the same phenomenon persists after some time of use. The low room temperature in which the DC cooling fan is located causes the lubricant in the rotating bearings to lose its effectiveness. In such cases, it’s necessary to add antifreeze lubricant to the DC cooling fan and pay close attention to the ambient temperature where it’s used.
If you suddenly notice an unusual noise during operation—noise that’s even louder than the sound emitted by the case’s power supply—it could be due to prolonged lack of maintenance. Over time, excessive dust has accumulated on the surface of the DC cooling fan and in the gaps of the heatsink. Moreover, the motor lubricant in the fan has completely dried up, causing a loud humming sound reminiscent of a motor running at full speed. The manufacturer, Yirongchuan, advises us to first separate the DC cooling fan from the heatsink. You can then simply clean the heatsink with tap water. Start by gently wiping it down with soft paper, and use a small medical cotton swab to clean any hard-to-reach crevices. Next, remove the plastic sticker on the back of the fan and apply one or two drops of ordinary sewing machine oil directly into the fan’s mechanism.
The above is a list of common faults that may occur when using DC cooling fans, along with their corresponding troubleshooting methods. For more detailed information, please visit our company’s official website!
Previous: A manufacturer of cooling fans shares tips on how to distinguish between noise and unusual sounds.
Related News
On these busy days, I’m grateful to have you all fighting side by side! At this company dinner, everyone can put aside their daily hustle and enjoy some wonderful moments together. Let’s raise our glasses and chat freely—may delicious food and laughter accompany us as we strengthen our team spirit and build an even warmer sense of unity!
2025-08-27
The weekend team-building event by the seaside came to a perfect close! With sunny beaches and endless laughter, the team collaborated seamlessly in fun-filled games, relaxing their minds and bodies amid the soothing sound of ocean waves. Filled with renewed energy, we’re ready to join hands and tackle new challenges together!
2025-08-25
The newly installed display cabinets at the Huizhou company are gradually being filled up...
2025-08-21
Jiangshan Lai Electronics wishes you a happy Mid-Autumn Festival 2022!
On a day of blooming flowers and a full moon, When families are reunited in joy, May our land send you warm wishes for a happy Mid-Autumn Festival!
2022-09-10
Jiangshan wishes you a healthy and happy Dragon Boat Festival 2022!
The fragrant aroma of zong leaves fills the air on May 5th— May our heartfelt wishes bring you peace and well-being this Dragon Boat Festival! May our land send its best wishes for your health and happiness this Dragon Boat Festival 2022!
2022-06-03
May the land and rivers bring you joy as we celebrate Labor Day!
Salute to the workers! May our country and its people bring joy and happiness to all our customers and employees on this special occasion!
2022-05-01
Advantages and Applications of Oil-Bearing DC Fans
The pivot joint is fixed at the position of the motor stator base, ensuring an appropriate gap between the rotor and the stator. Of course, there must also be a clearance between the shaft core and the bearings to prevent the shaft core from becoming locked and thus unable to function. The stator structure of the motor—hereafter referred to as the "stator"—is designed in such a way that, once power is supplied, an induced magnetic field will be generated between the rotor and the stator. The control circuit then drives the electric fan motor into operation. Therefore, in the conventional fan motor design, as long as the fan rotor, the motor stator, and the drive circuit work together via the pivot joint between the shaft core and the bearings and through magnetic field induction, the motor can operate effectively.
2022-04-18
FRIENDLY LINK：
3rd Floor, 59 Yanshan Avenue, Yanchuan Community, Yanluo Street, Bao 'an District, Shenzhen
Which DC fan wholesale manufacturer is better, the recommended DC fan supplier rankings, the price of brushless DC fans, and what are the