More than likely the logic board took a power surge and needs to be replaced and possibly the wall button or sensors too.
Linear garage door opener reset after power outage.
Pull the emergency disconnect cord hanging from the opener.
Once the power comes back on you must re engage the garage door opener to the door.
Whether you replace or repair put a surge protector on the unit 900 joules or higher and this won t happen again.
If your garage door has two different buttons that are used to open and close the garage door simply click.
It should click in place.
Once the power is restored to the garage door opener you must.
After the garage door is closed firmly press the garage door opener button.
Re engaging your garage door opener after a power outage.
To reset it begin by pulling the cord in the opposite direction.
The carriage which connects to the door arm locks around the opener trolley during normal operation.
First you must disconnect the garage door opener from the door itself.
Once this happens you can open and close the door electronically.
If you are in need of getting out of your garage door during a power outage you must first disconnect the garage door opener from the garage door.
It s best to unplug the opener from its power source beforehand.
You can try unplugging the unit for 15 minutes but an opener does not have a true reset button.
The door must be completely closed in order to re connect the garage door opener to it correctly.