1. First of all, we need to remove the cooling fan. We can fix the small cooling fan with one hand, and the larger cooling fan can be fixed with both hands. However, this operation is very dangerous. If you are not a professional, you should not test it like this. After disassembly, the vibration of the fan has been significantly improved. It can be considered whether the installation angle and installation method of the cooling fan are correct.

2. Remove the cooling fan, and carefully check whether the rack and fan blades vibrate. If there is vibration, it may be the cause of bearing damage. In this case the fan is no longer usable and needs to be replaced. Here we recommend double ball bearing exhaust fans for longer life and greater durability.

3. If the above two situations are not true, we can clean the dust and impurities of the fan and air duct. In addition, you can also consider whether there is a quality problem with the cooling fan.

Guangdong Chungfo Electronic Technology Co., Ltd. is a professional cooling fan manufacturer dedicated to the equipment cooling needs of various industries. Chungfo specializes in the development and supply of cooling fans such as axial cooling fans, cross flow fans and DC blowers. We can provide professional customization of cooling fans according to customer needs. If you have needs in this area, please feel free to contact us.