Fan not starting

Your Fan is not starting from your BAFCon controller? Follow these troubleshooting steps.

1. Confirm your Yellow Jacket unit is getting power. Make sure the breaker has not been tripped and confirm that you are getting the correct line voltage (120/208/240) at the fan with a multimeter.
2. Make sure you are getting a 0–10V signal from the BAFCon to the fan. Remove the control wires, turn the fan speed to 100 percent, and use a multimeter at the 0–10 terminals on the back of the BAFCon to see if the BAFCon is sending voltage to the unit. You should see approximately 5VDC across the control wires.
3. If there is no voltage, the BAFCon is not outputting. Contact Customer Service for a replacement. If the BAFCon is outputting voltage, reattach the wires and test again. If there is no voltage at the fan, there may be a short in your control wire run. If voltage is present, continue with troubleshooting.
4. Check BAFCon configuration. Confirm the correct control mode (0–10V) is selected, ensure there are no schedules set for your fan, and if the BAFCon is tied into automation (Lutron, BMS, etc.), verify the controller is calling the fan ON.
5. Test the fan directly. Confirm DC voltage at the purple and black wires of the fan control box. If voltage is present and none of the above resolves the issue, contact Customer Service.