What to Check

Sensors should automatically pass. If Sensors are not passing, check and resolve the issue described. For airspeed issues: keep vehicle on the ground and out of the wind when arming to prevent incorrect speed measurement, or re-calibrate airspeed if needed. For AHRS error: this usually fixed by obtaining more GPS satellites with a more clear view of the sky. You can try rebooting the aircraft when sitting still on level ground to clear sensor warning messages.

Troubleshooting

Symptom	Solution(s)
Airspeed	Move the aircraft out of the wind or block the Pitot tube from the wind.
AHRS Error	Place the aircraft on level ground with a clear view of the sky and wait 1 to 2 minutes. Reboot the aircraft and let sit on level ground.
Yaw Estimate Error	Place the aircraft on level ground with a clear view of the sky and wait 1 to 2 minutes. Reboot the aircraft and let sit on level ground.