I have to new Phantom 2 ver2

one of my motors stall during start up and also flight.

I have not crashed, landed upside down or in anyway had dirt or moisture enter the motor.

Is this a bearing fault with the stater or an ESC Issue

when I start up my phantom the motor CCW MOTOR 1 stutters and does not rotate until 100% is delivered.

also during flight it stalls

here is a short video showing my problem

Answers please DJI

I would replace the ESC board for that motor.  When you first start the motors up, it doesn't rotate at all?

So the ESC is at fault and not the motor?

Hi,
from the video the motor still spins, what's your concern?
You mean a motor doesn't work during flight?

It is the ESC that is defective. I would look at the soldier joints for the motor wires. There are 3 connecting to the ESC. There has been many posts about cold soldier joints from the factory. The joints should have a nice shiny look. If the joints look dull or grainy I would redo the soldier before replacing the ESC.

DJI-Dboy Posted at 2015-1-14 18:01
Hi,
from the video the motor still spins, what's your concern?
You mean a motor doesn't work during  ...

when in flight and I change my direction of flight ie yaw the motor loses power and stalls

Gobokinetic Posted at 2015-1-14 21:37
when in flight and I change my direction of flight ie yaw the motor loses power and stalls

i think it's ESC malfunction when the power suddenly rise, try to contact your dealer for maintenance.