Well the motor is receiving power which is obvious by the light flickering, but do hear the motor working or not. If the motor is working and the window is still not going up then the window just went off the track and needs reajusting. Sometimes that can be simple fix, but sometimes it can be a pain in the butt. If the motor is not working at all then you will need to replace it. That can be a pain because you have to remove depending on the setup the whole inside of the door. Good luck.