2 HP Craftman Garage Door opener When I press the opener the door only goes up 6 - 8 inches. Press the button again the door comes down and then starts back up again and then stops. If I manually assist the door it will open
Building Materials - Sears - LiftMaster - Craftsman LiftMaster Chamberlain Garage Door Opener Wireless...
Answers & Comments
Check to make sure you don't have a broken door spring. Also remove the cover from the motor unit and check the drive gear. It is white nylon and is just in front of the motor. It may be going bad and if it is it will be obvious. On the rear of the motor unit you will find the 'up force' adjustment. Increase this a bit and try.