This is almost always the result of a dirty or obstructed safety feature.
Garage door keeps going u.
But one of the more perplexing issues is when the door goes up and down by itself with no help from you.
Your garage door is programmed to travel a certain distance before it closes.
Scan the safety sensors.
When i press the button to open my garage door it goes up but then stops after it raises about a foot or so.
It goes partway down reverses direction and goes back up again.
In garage door operators made after 1993 there are required safety features that open the door during the close cycle when they detect something blocking the door.
Then i go up to the door and when i press the button i use my hand to gently give the door a push and it goes all the way up.
Besides a short in the circuit board any number of mechanisms that are involved in making the door open and close could be the cause of the garage door opener s ghost movement.
This is done with the help of sensors in the motor and on each side of the opening near the floor and mounted on the tracks.
It can seem quite ghostly having your garage door operate with a mind of its own.
It may be your garage door sensor.
There are sensors of course that tell the door when to stop so i tried cleaning those and the problem went away.
I then press the button to lower it back down.
These issues include shorts in the wall button the garage door opener remote the wall button wiring the wired keypad or other related electronic issues.
If it closes before that distance has been traveled it thinks something is wrong and it reopens to help prevent any damage or safety risk.
Garage door opener keeps going back up.
If the garage door suddenly comes crashing down and will not go back up this is usually the result of a snapped cable.
The garage door keeps going up and down.
It can also be a security problem when it opens to expose your belongings when you aren t home.
But changes in weather conditions can causes your garage door components to shift or contract.
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.
There are four common problems with garage door sensors three of these homeowners can fix themselves.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.