What to do if MacroAir Technologies Fan shows a Supply Voltage Low Fault?
- NNicholas ChandlerAug 23, 2025
If your MacroAir Technologies Fan displays a Supply Voltage Low Fault, here’s what you should do: Begin by turning the incoming power off for two minutes and then turning it back on. Verify that the incoming power meets the fan's specifications. Check if there have been any recent power outages or storms in the area. Lastly, make sure the motor wiring is correctly configured, ensuring that A is white, B is black, and C is red.





