Manual
USER GUIDE 
84 
Calibration error- see manual 
This message is displayed if an error has occurred with the optional 
altimeter calibration step. 
  Can't arm when RTH triggered! 
If you try to arm when the Vector is in RTH mode (normally because the 
mode/submode switches are set to “RTH Test”), this message will 
appear. 
  Can't change when knob used! 
  The controller gains cannot be changed in the menus when the gain 
knob is enabled for that gain. 
Can't do that while flying! 
You’ve attempted a menu operation that cannot be done while flying (or 
armed). 
  If the altimeter or speed sensor(s) are drifting considerably, the 
Vector may think that your fixed wing model is flying, when it is not. 
Resetting home or rebooting the Vector should remedy the issue. 
Channel not detected! 
This message will be displayed when you are running the Serial Rx 
Learn wizard and the requested channel was not detected. This is ok if 
the requested channel is not needed with your setup. 
Compass Needs Recalibraton! 
This indicates that the Vector has detected issues with the compass 
calibration. Please recalibrate the compass. This can also happen if the 
compass is rotated, not mounted firmly or level with the Vector, or is 
temporarily near large metal objects. 
Compass not Calibrated! 
You have enabled the compass, but have not yet run the compass 
calibration. 
  Control stick not centered! 
Your control stick must be centered to arm the multirotor. If your 
control stick is centered, please rerun the Receiver Analysis Wizard 
again. 
Elevator Issue: Rerun Wizard! 
When you ran the Receiver Analysis Wizard, the Vector did not detect 
correct movement of the elevator input. Check your wiring and settings 
and run the wizard again. 
Emergency reboot occurred! 
If you see this message, DON’T FLY and contact support. 
Error: External sensor issue! 
This message indicates there was an issue communicating with either 
the GPS/MAG, or the pitot speed sensor. If this happens repeatedly, a 
cable is loose or damaged, or there’s a power or sensor problem. 
Error: Internal sensor issue! 
If you repeatedly see this message, DON’T FLY and contact support. 
ERROR: Too far from Home 
This message will be displayed if you try to reset the home position 
more than about 500 feet (150 meters) from the GPS’s first fix location 
ERROR: too far off level! 
This message will appear if you invoke the “Record Flat Level Mounting” 
function, but the Vector is mounted too far off level, or the model is not 
presently level enough. 
ESC saturation detected! 
For multirotors, while trying to respond to your stick movements or 
other perturbations, the Vector has driven one or more ESCs to its 
maximum output. During high speed forward flight, it’s possible that 
the amount of thrust needed to keep the multirotor in the air will exceed 
the maximum throttle that can be applied to the ESCs. In this scenario, 
the message will be displayed.  
This message is informational only and does not necessarily indicate an 
error condition, although it can be useful to help diagnose unexpected 
flight behavior. It may help to think of it in similar terms as Electronic 
Traction Control in a car. When displayed, it means that the motors on 
your multirotor are reaching the limits of their capability.  










