11 reasons why your automatic garage door won t open or shut the photo eye is blocked.
Garage door closes but does not open.
If the door opens as you get very close to the box but fails to open as you back away the battery is low and needs to be replaced.
First check the sensor lights.
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.
But changes in weather conditions can causes your garage door components to shift or contract.
When the door is lowered the spring winds up tightly creating a pulling force that helps lift the door up.
Your garage door is programmed to travel a certain distance before it closes.
Its power source is disrupted.
Many garage doors have a powerful torsion spring located horizontally above the door.
The limit setting is off.
The torsion springs are broken.
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.
If the door won t open then it s the door itself which is causing the problem.
If it closes before that distance has been traveled it thinks something is wrong and it reopens to help prevent any damage or safety risk.
Snapped or loose cables.
Depending on the brand.
Instead you ll need to investigate the garage door opener.
The door has dislodged from its track.
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If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
If it is the door there are several reasons why it won t open.
When you can t see any blinking red light at all on top the box.