If the chain was installed too tightly on the garage door opener it can make opening the door more difficult for the automatic opener.
Garage door opener chain jammed.
Inspect the down limit switch.
If the gear becomes too worn it will no longer be able to move the chain.
I am sorry you are having a problem with the garage door opener.
Be sure to use clopay s garage door prolube or sillicone based lubricants.
The hine slide that pulls the garage down is stuck against the motor answered by a verified home improvement expert.
Lodged garage door track.
It s important to get this switch at just the right distance from the motor so that the door is able to close all the way but the motor also knows to stop running.
Check the breaker controlling the door opener and reset if it it s tripped.
Try making small adjustments.
This is related to the up limit switch.
Poor lubrication is a very common and easy to fix explanation for why you might find your garage door stuck.
Then remove the metal cover to access the motor.
My craftsman garage door opener is jammed.
This can be a quick fix by identifying the object and then removing it.
Your jammed garage door can be caused by something as simple as an obstruction in the track.
If this is what you are describing it sounds like your travel limit switch for ending the opening travel.
Check to see if anything a shovel broom etc fell and is now stuck in the track that is causing it to be lodged.
Ensure that the unit is plugged in the door isn t locked and if you are using a remote that the remote has batteries.
T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
The part that connects the chain drive to the door is called a carriage.
First unplug the unit from the outlet.