Main rotor spins but quadcopter
is unable to take off
Strong vibrations on the
quadcopter
Quadcopter has problems with
inconsistent left/right
manoeuvres
Quadcopter drifts after trim
adjustment during hover
The quadcopter fails to fly at all.
1. Rotors are damaged
2. Battery is very low
3. Rotors incorrectly fitted
Rotors damaged
1. Damaged rotors
2. Damaged motors
Gyro/Accelerometer is out of
calibration
1. Motors damaged
2. Main gears loose
1. Replace the main rotors
2. Charge or replace with a fully
charged battery
3. Check the rotors and correct
if needed
Replace the main rotors
1. Check and replace any
damaged rotors
2. Check and replace and
damaged motors
Perform the Gyro/Accelerometer
calibration
1. Replace damaged motor
2. Check and replace gears
