A door that is stuck halfway open is a security risk allowing access to the garage and the home if it.
My garage door trolley is stuck.
Some garage doors have a full lock system which enables you or anybody to lock your garage door from the outside by only turning the handle.
If you detect a small bend you may be able to straighten it out yourself but anything more extensive will require professional intervention.
The trolley can become lodged against the stop bolt tab because the door has either opened or closed too far.
Typically this is caused by a mis adjustment.
The garage door opener motor will hum when attempting to open or close the door but is unable to travel due to being lodged against the bolt tab.
Weather damage and harsh impacts can also distort your garage door track.