That is exactly what is happening. You are stalling out the servo. That bad thing about this situation is that when the servo is stalled like that it draws a tremendous about of power from your battery. And in flight it can drain your battery quickly. So the situation needs to be resolved.</p>

You can adjust it with your endpoints. However, you need to try to fix this problem mechanically first before you start making adjustments with the endpoint settings in your radio. You can adjust the amount of throw on a control surface by moving the position of the pushrod on the control horn or servo arm. At the servo arm moving the pushrod in towards the center of the arm results in less travel on the control surface. At the control horn moving the pushrod further away from the control surface reduces the amount of travel in the surface. By adjusting at these two points you should be able to fix the problem you are having here.</p>

Ken</p>