Reasons why your garage door closes then reopens when your garage door keeps opening and closing there are typically several possibilities for this malfunction.
Garage door shuts then reopens.
Close the garage door with the opener and watch it closely as it closes.
If it closes only partway the safety sensors are usually responsible clean the lenses or realign them and make sure there are no obstacles blocking the beam.
They are misaligned this is the most likely problem and the most common issue with garage door openers.
This is almost always the result of a dirty or obstructed safety feature.
The sensors are dirty wipe lenses with a clean soft cloth.
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.
It goes partway down reverses direction and goes back up again.
If the door closes while holding the button pressed you are likely having one of the following issues with your safety sensors.
If your garage door won t open or close the problem could be a bent track a broken torsion spring or a bad capacitor int he motor housing.
If you re craftsman chamberlain etc garage door opener is closing and then opening up its likely a common problem related to the stop limit mechanism.
If your garage door reverses when it hits the floor look into these three common causes and try troubleshooting the issue.
If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs.
But changes in weather conditions can causes your garage door components to shift or contract.