In a high temperature environment, we sometimes encounter the problem that the cooling fan cannot run, which poses a certain threat to the heat dissipation performance and stability of the device. We Chungfo as a more than ten years of experience in the ac exhaust fan wholesale manufacturers will lead you to explore the cooling fan in the high temperature environment can not operate several possible reasons.

1.Overheating protection: Many double ball bearing exhaust fans have overheating protection. That is to say, when the ambient temperature exceeds the fan's tolerance range, the fan will stop running to prevent overheating damage.

2.Lubricating oil failure: under high temperature environment, the lubrication effect of lubricating oil will be greatly reduced, which leads to the bearing wear of some high rpm exhaust fans, and the fan will stop operating at any time.

3.Thermal expansion and cold contraction lead to deformation: The plastic parts of the brushless exhaust fan will produce thermal expansion and cold contraction in a high temperature environment, resulting in component deformation and affecting the normal operation of the fan.

4. Frequency regulation: In high temperature environments, some bldc exhaust fans may control the temperature by reducing the operating frequency. This means that their rotational speed slows down, which reduces heat dissipation. If the temperature is too high, the fan may stop running to protect itself.

If you have the need to buy high quality mini axial cooling exhaust fans, please feel free to contact us!