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Problems liftmaster garage door closing.
The door would always open fine but then would have trouble closing.
Safety sensors are not installed connected or wires may be cut.
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.
This will disconnect the garage door opener from the door.
Get the liftmaster garage door support you need from chamberlain group.
The garage door opener will not close and the light bulbs flash.
You may find something blocking the light that passes between them or you may find that cleaning the lenses solves the problem.
Pull the emergency release handle down and back towards the garage door opener.
Problems with the safety sensors when the door won t close or it closes only part way and immediately opens again the safety sensors are the first thing to check.
Another clue to the mystery was if you held the wall switch the door would completely close.
There is a short or reversed wire for the safety sensors.
Inspect sensor wires for a disconnected or cut wire.
To fix this issue and get your liftmaster garage door opener working again follow these troubleshooting steps.
Sometimes it would close part way before stopping and reversing and other times it wouldn t open at all.