It could be a bad connection in the power outlet opener cord or internal wiring or components of the opener.
Garage door opener shuts off after opening.
This brain can wear out in time so you could need a replacement.
A broken torsion spring will also cause the door to slam closed instead of closing gently.
Your garage door s logic board is the brain of your garage door opener.
Also verify the antenna on the motor unit is in the proper placement.
What controls the lights.
The team here at sevan locks and doors has a few tips for you to troubleshoot the fact that your garage door opener light won t shut off.
If this isn t lit check for a tripped breaker in the main panel or a tripped gfci outlet.
Get logic board replacement.
The keypad doesn t work firstly check that you re using it within the range required for your opener.
You can also try an extension to another outlet to test if works better there.
However if it is staying on longer than that there is a problem you need to address.
Your logic board needs replaced.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
If the door starts to open but won t move more than a few inches the torsion spring may be broken.
You may also need to reprogram your keypad or replace the batteries in it.