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.

Back off the uptravel limit screw 2 turns. What you need to do is back off the uptravel limit adjustment. I decided to unbolt the chain from the trolley to allow the opener to move again. Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.

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. Get shopping advice from experts friends and the community. The trolley can become lodged against the stop bolt tab because the door has either opened or closed too far. See how to get the trolley off the stop bolt or stop tab.

The trolly was parked where the door would normally remain closed. Opener trolley is stuck against the rail stop bolt. The garage door has opened and will not close. The up down limit screws are on the opener body with arrows above to indicate increase.

When i pushed the button the door began to open but it didn t stop and hit the stop bolt causing a lot of stress on the chain. When my craftsman garage door opens up it goes all the way up until the trolley hit the safety pin. Typically this is caused by a mis adjustment. When i disconnected the door it seemed to open and close by hand smoothly.

Do you know what i need to do to limit the movement of the door model 139 53650srt craftsman. Eventually it becomes a problem with driving the door into the ground or in your case driving the trolley up onto the bolt. A problem came along after the assembly was complete and i tested the garage door opener. We design and engineer residential garage door openers commercial door operators and gate entry systems.

My 10yr old house has a sectional aluminum door and a 1 2hp craftsman garage door opener.