Liftmaster Garage Door Trolley Jammed Into Stop Bolt

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.

Liftmaster garage door trolley jammed into stop bolt.

I have compared with the other garage door opener i have and it stops on the way up 1 2 inch before the trolley hits the safety screw bolt. We design and engineer residential garage door openers commercial door operators and gate entry systems. The trolly was parked where the door would normally remain closed. The garage door has opened and will not close.

Get shopping advice from experts friends and the community. See how to get the trolley off the stop bolt or stop tab. Once it topped out the opener stuck there. Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.

Recently it opened all the way until the trolley hit the bolt that stops it from going any further. Back off the uptravel limit screw 2 turns. Loosen the chain or belt to relieve the tension then press the door control to run the trolley to the close position. The up down limit screws are on the opener body with arrows above to indicate increase.

Opener trolley is stuck against the rail stop bolt. When i disconnected the door it seemed to open and close by hand smoothly. My 10yr old house has a sectional aluminum door and a 1 2hp craftsman garage door opener. What you need to do is back off the uptravel limit adjustment.

Eventually it becomes a problem with driving the door into the ground or in your case driving the trolley up onto the bolt. I decided to unbolt the chain from the trolley to allow the opener to move again. Do you know what i need to do to limit the movement of the door model 139 53650srt craftsman. A problem came along after the assembly was complete and i tested the garage door opener.

When my craftsman garage door opens up it goes all the way up until the trolley hit the safety pin.