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Problems liftmaster garage door closing.
Close the door with either the door control or the remote control.
There is a short or reversed wire for the safety sensors.
The garage door opener will not close and the light bulbs flash.
Liftmaster garage door openers troubleshooting support.
Inspect sensor wires for a disconnected or cut wire.
This will disconnect the garage door opener from the door.
Another clue to the mystery was if you held the wall switch the door would completely close.
Pull the emergency release handle down and back towards the garage door opener.
The garage door opener will not close and the light bulbs flash.
Whether you have a belt drive chain drive or wall mount model find helpful resources manuals videos and more to help you diagnose and fix the problem.
You may find something blocking the light that passes between them or you may find that cleaning the lenses solves the problem.
Sometimes it would close part way before stopping and reversing and other times it wouldn t open at all.
To fix this issue and get your liftmaster garage door opener working again follow these troubleshooting steps.
Safety sensors are not installed connected or wires may be cut.