This occurs when your motor tries to open the door but the torsion spring does not comply as a result the garage door opener is forcing the door to open and can subsequently bend it at the top section.
Top of garage door is too tight.
If the door is hitting the sill it will still be indicated in the margin along the latch side.
The door closes quickly but is heavy to raise.
The door works well but goes back up when it s 2 to 3 inches from the threshold of the door.
Review steps 5 or 5 1 depending on the spring type.
If you have a door saddle and block mark the door where it touches the frame remove it place in the saddle and plane the doors edge.
If it lowers on its own the.
While you re at it disengage the electricity from your garage door opener if you have an automatic one.
The spring s are a little too tight adjust the tension.
The spring s are not wound tight enough.
If the door is tight against the frame at the top and there is a gap at the bottom the door is sagging.
It should be taut enough to allow the top of the door to hit tight up against the outside weather stripping when the door closes and hits the floor to prevent drafts.
Loosen the lag bolts that hold the track to the jamb and slide the bracket until the distance is correct.
You may have to loosen more than one of the clips.
Is the gap wider at the bottom and narrower at the top.
You may also notice your garage door falling to the floor much more quickly than usual when you close it.
Lift up the door halfway from the inside using one of the cross members.
You don t want any electrical accidents to happen while you re working on your garage door.
Learn how to adjust garage door opener to close tighter with no gap at the bottom or top.
Easy garage door adjustment you can do it yourself.
Only loosen one track at a time and do not remove the lag bolts completely.
Yes then the door is sagging.
If the door remains at the halfway position without assistance the tension is correct.
If after first adjusting the hinges you find the door lining is tight and the door is too wide it will need to be removed and the edge trimmed in most instances with a planer electric or smoothing hand plane.