By wade shaddy updated december 19 2018 you push the button to close the garage door.
Garage door closes but then opens again.
Garage door opener keeps going back up.
If the door starts to open but won t move more than a few inches the torsion spring may be broken.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs.
It goes partway down reverses direction and goes back up again.
This brain can wear out in time so you could need a replacement.
Your garage door opens immediately after closing.
There are four common problems with garage door sensors three of these homeowners can fix themselves.
Remove the bell wire from the single button control station s terminals and operate the garage door opener from the remotes.
The garage door keeps going up and down.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
A broken torsion spring will also cause the door to slam closed instead of closing gently.
If this is a sears srt without external travel limit switches the internal travel limit is out of adjustment telling the opener to continue after the bottom of the door makes contact with the garage floor basically driving it into the ground until the force required exceeds what the safety system force is set at.
When your liftmaster garage door opener opens and closes by itself here are the troubleshooting tips you need to follow.
Disconnect the control station.
Your garage door opens when it hits the ground.
Your garage door s logic board is the brain of your garage door opener.
This is almost always the result of a dirty.
You can usually tell if a torsion spring is broken by looking at it.
Close the garage door with the opener and watch it closely as it closes.
It may be your garage door sensor.
The garage door goes down then back up.
