The trolley is on garage door end not on the opener end.
Garage door inner trolley stuck.
Recently it opened all the way until the trolley hit the bolt that stops it from going any further.
Chances are you ve got a broken trolley carriage.
For most garage door openers you can get a new trolley carriage for about 25 to 40 depending on the model.
As the drive shaft and sprocket rotate they drive the trolley that lifts and lowers the garage door.
Commonly called a carriage the trolley on your garage door is what connects the operating arm attached to the door to the overhead rail.
A door that is stuck halfway open is a security risk.
A repair for a garage door trolley typically takes less than 30 minutes.
If the gear is worn or damaged the door won t move properly.
Do you have a chamberlain or liftmaster garage door opener that won t close and the garage door is stuck open.
Once it topped out the opener stuck there.
How to fix a garage door that gets stuck halfway.
All you need are some simple household tools and a few garage door parts.
Surprisingly your garage door just being locked can be causing your problem.
The plastic gear on the drive shaft is designed to fail if the garage door gets stuck in the travel tracks protecting the expensive drive motor from damage.
It provides the pushing or pulling that raises or lowers the door with the automatic opener.
I decided to unbolt the chain from the trolley to allow the opener to move again.
I disconnected the chain and pressed the wall switch to make sure the gear rotated clockwise so that it would be as if garage door was closed.
Be sure the release cord at the underside is at the inner end toward the motor.
I did a complete video on the entire chamberlain carriage trolley mechanism if that is what you re looking for you can find that here.
My 10yr old house has a sectional aluminum door and a 1 2hp craftsman garage door opener.
Disengage the carriage by.
Does your garage door opener make a buzzing so.
When i disconnected the door it seemed to open and close by hand smoothly.
It s a fairly easy part to fix.
