If working properly, garage doors open and close only with a push of a button from the electronic opener.
Or, if during power outages, we can manually open or close them.
But what if one morning we wake up and find our garage door open?
And we ask ourselves: “Why does my garage door open by itself?” Indeed, it is scary when that happens.
What if unwanted animals or bad guys will enter our house through our open garage door?
This is the kind of problem that needs to be fixed as soon as possible.
But before we call the help of a professional, let us first check the possible reasons why the garage door opens by itself.
The following checks are easy and we can do it by ourselves.
Safety Sensors Blockage Detection
There is this safety feature required for 1994 and beyond garage door operators.
Sensors are placed in the following areas: in the motor, on each opening’s side, mounted on the tracks and near the floor.
When the sensors detect that something is blocking the door during the close cycle, the door will open.
So, when the door this an object while going down, the resistance will be detected by the sensor that is on the motor.
This will cause the door to open.
Possible blockages that will cause the garage door to open are accumulated snow, ice or leaves around the door of the garage.
The floor sensors have a beam of light between them.
The door will not close if the light is broken.
Also, if the floor sensors are not completely broken but misaligned, it can…