Clutter or obstructions that block the sensor are the first problems to look for if your door won t close or in extreme cases open at all.
How to fix a garage door that will not close.
On the switch pad located on the wall press and hold the pressure plate for a few seconds.
Garage door won t close completely if your garage door isn t closing all the way but also doesn t reverse you might need to adjust something called the limit switch.
Depending on the brand.
If you ve tried everything listed above and your garage door still won t go down you can try to force it to close.
If you can t find any other reason that the door won t close check the alignment of the side tracks.
First check the sensor lights.
Garage door openers come with.