If your garage door opener has this symptom watch this video to learn why.
Garage door opener just up down.
There may be binding and obstructions or the connections of the wires at the module are incorrect.
Automatic garage door openers are prone to a variety of problems most of which are fairly easy to fix with routine troubleshooting and maintenance.
Garage door starts down then stops and goes back up or safe t beam system malfunction.
Garage door reverses with five blinks on the down arrow and once on the up arrow your garage door could be reversing after going up to about 8 inches.
Press and hold the up button till the garage door is in the fully opened position press the adjustment button to confirm.
It can seem quite ghostly having your garage door operate with a mind of its own.
Make sure only the safe t beams that came with this garage door opener are installed.
But one of the more perplexing issues is when the door goes up and down by itself with no help from you.
Check if the limits are properly set.
If it is a new installation check the postion of the door arm.
Adjust the limits as needed.
Check if the safe t beams red led light is flashing.