Garage door gets stuck
The electric lift is good but the weight distribution on the extension springs is off. I can not make them balance and the door seems to have a spot 1/2 way up or down that it gets harder to pull through, So the opener stops.
Car Audio & Video - Chamberlain - Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage...
Answers & Comments
Try adjusting the force of the opener. Instructions are on page 25 of the manual. http://www.liftmaster.com/CatalogResourcesV3/en-us/shared/files/tucmanuals/114A3059.pdf
Correction: Instructions are on page 28.