What does 'Overspeed Fault (Blades Too Short)' mean for my MacroAir Technologies Fan, and how do I fix it?
- MMr. Lawrence Robles DVMSep 2, 2025
If your MacroAir Technologies Fan shows an 'Overspeed Fault (Blades Too Short)', verify the correct blades are installed, the correct number of blades are installed, and the correct blade setting is selected. Also, verify that the minimum acceptable clearance is maintained between the fan blades and the structure and verify motor parameters.




