Here is what may cause your garage door opener to not power on.
Garage door opener quit working after power outage.
I would first unplug the opener then will have to remove the cover to access the internals.
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.
When your garage door is not working after a power outage even after the power comes back on you might think something is wrong.
This will usually only happen during a power outage but it can happen on its own too.
The only other work that could be done at this point is to perform checks on the power connection to the board.
3 the circuit board itself is faulty.
Once the power is restored to your home close the garage door.
From informational videos to product manuals and troubleshooting articles the chamberlain group resource library has the information you need.
After the garage door is closed firmly press the garage door opener button.
The door must be completely closed in order to re connect the garage door opener to it correctly.
If your garage door has two different buttons that are used to open and close the garage door simply click.
2 the glass fuse on the circuit board has blown or popped.
During a power outage you must manually open and close the garage door.
However in almost every case it s just a matter of raising the door pulling down on the rope and then pushing the control button on your remote or at the wall to engage the carriage again.
Try using your remote to open or close your door to determine if the reprogramming was successful.
You have already performed the primary checks and verified power form the panel to the garage door opener receptacle.
1 the transformer has failed due to a power surge.
Your garage door might be operating on battery power.
Your backup battery might be running low on power or unable to recharge.
Find the chamberlain garage door opener technical support you need to get your garage door opener operational.
To reprogram your garage door remote locate then press your opener s learn button.
4 a wire or wire harness is loose or burnt.