There are four common problems with garage door sensors three of these homeowners can fix.
Garage door will go up not down.
Make sure only the safe t beams that came with this garage door opener are installed.
Your garage door opens immediately after closing.
If your garage door all of sudden won t go up and you re sure the transmitters are working properly and power is getting to the motor then you may have broken torsion springs.
If your garage door hits it bounces up and starts to open again your garage door is working well.
Check if the safe t beams red led light.
Garage door starts down then stops and goes back up or safe t beam system malfunction.
They both have lights and both lights should be on.
You ll then want to test it again and if it s not right keep adjusting the down limit nob.
If you happen to be home when these break you ll hear a loud bang from inside your garage.
This is almost always the result of a.
The garage door keeps going up and down.
Garage door opener keeps going back up.
Your garage door opens when it hits the ground.
To fix this issue increase the down limit one quarter turn.
Step by step procedures to try if the garage door of your home will not go down without holding the button before calling a repair man was this video helpful.
Check if the limits are properly set.
It may be your garage door sensor.
The transmitters remotes will not work to close the garage door.
There is one on each side of the door.
If the door goes up but you can t make it go down you probably need to adjust the sensors.
You will find that the door will only move an inch or so in the close direction and reverse.
However if your garage door doesn t bounce back up then you know you have a problem.
It goes partway down reverses direction and goes back up again.
If it is a new installation check the postion of the door arm.
Adjust the limits as needed.
The garage door goes down then back up.