Here s a rundown of some of the possible reasons this can be happening.
Garage door keeps going back up after closing.
Replace the wiring if needed with garage door opener wiring.
Look at the photo eyes themselves if there are cobwebs or if there is dust on the lenses the eyes will sense this and.
Incorrectly set limit switches may prevent your garage door from closing completely or opening all the way.
Possible reasons why your garage door hits the floor then goes back up as is the case with so many issues at the home there s no one reason why your garage door closes then opens.
They can also cause the opener to reverse or pull back up when you attempt to close it which can seem like a malfunction or that someone else is using a garage door opener remote that is on the same frequency as yours.
The garage door keeps going up and down.
This is almost always the result of a dirty or obstructed safety feature.
Your garage door opens when it hits the ground.
Staples can cut insulation and short out the wires.
It goes partway down reverses direction and goes back up again.
Sometimes there could be a box.
Here are some symptoms of the problem.
Your garage door opens immediately after closing.
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.
For series ii wall console you can remove the wires from the back of the wall console and touch them together to see if the garage door moves.
Close the garage door with the opener and watch it closely as it closes.
An exposed spot or a short circuit in the small gauge wire that leads from the garage.
Check for reversed broken or cut wires.
Garage door opener keeps going back up.
If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs.
Your travel down setting needs to be adjusted.
You push the button to close the garage door.
My garage door keeps reversing and will not close make sure the photo eyes are clear of anything that may interfere with the safety beam.
What to do when your garage door opens and closes by itself check with your neighbors.
Inspect the control wiring.