Fan Overheating or Vibrating? 5 Maintenance Blind Spots to Check

Fan Overheating or Vibrating? 5 Maintenance Blind Spots to Check

Apr 10, 2026

In industrial settings, centrifugal fans operate under high loads for extended periods, leading to common issues such as overheating bearings and excessive vibration. Extensive after-sales tracking data shows that over 70% of these problems are unrelated to the quality of the equipment itself, but rather result from oversights in operation and maintenance.

As a professional fan manufacturer, we aim to help users develop a correct understanding of operation and maintenance. Here are five common maintenance blind spots from a technical perspective, for on-site engineers' reference:

●Excessive Vibration:Check if the impeller is covered in dust. Dust accumulation will disrupt the dynamic balance, requiring shutdown and cleaning.

●Bearing Overheating:More grease is not necessarily better. For high-speed fans, it is recommended to add grease "small amounts frequently."

●Selection Mistakes:High static pressure systems should use backward-curved blades, which are 20-30% more efficient.

●Belt Tension:Too tight a belt increases bearing load, while too loose a belt leads to insufficient speed.

●Long-Term Inactivity:Manually rotate the fan weekly to prevent bearing corrosion.

SIMO BLOWER provides full lifecycle technical support. For any sudden malfunctions, please contact our after-sales service team at any time.

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