The garage door opener will not close and the light bulbs flash.
My chamberlain garage door opener will not close.
The garage door opener will not close and the light bulbs flash.
Disconnect your chamberlain garage door opener from the garage door by pulling the emergency release handle down and back towards the garage door.
Inspect sensor wires for a disconnected or cut wire.
From informational videos to product manuals and troubleshooting articles the chamberlain group resource library has the information you need.
There is a short or reversed wire for the safety sensors.