There are four common problems with garage door sensors three of these homeowners can fix themselves.
Garage door opener going up and down.
But one of the more perplexing issues is when the door goes up and down by itself with no help from you.
I have a craftsman 1 2 hp garage door opener.
Try making small adjustments.
The garage door goes down then back up.
Set the step ladder under the garage door opener in your garage and use it to access the up and down limit switch adjustment screws located on the side of the garage door opener motor housing.
Now if your garage door stops opening up before it gets to 5 feet you ll need to adjust the open or up force nob.
Garage door opener keeps going back up.
Recently when i tried to open the garage door with my remote the door only went up a few inches stopped and went back down.
Video of a garage door setup with two doors operating on a dual upper track.
T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
Your garage door opens when it hits the ground.
The garage door keeps going up and down.
One screen door and one regular door.
If your garage door opens part of the way at least 5 feet and then stops you ll want to turn the up limit knob to the right.
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.
You ll also want to make sure you keep the trolley about 2 to 4 inches from the protection bolt.
I tried to use the key pad and the button inside the garage and the same thing happened.
This is related to the up limit switch.
It can seem quite ghostly having your garage door operate with a mind of its own.
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.
It may be your garage door sensor.
Automatic garage door openers are prone to a variety of problems most of which are fairly easy to fix with routine troubleshooting and maintenance.
Your garage door opens immediately after closing.