You activate the door opener by either a remote control hand held unit or by pressing the wall button mounted on the wall and hear the motor humming but the garage door does not move.
Liftmaster garage door just hums.
Manually bring the door to the closed position.
Loosen the chain or belt by adjusting the outer nut 4 to 5 turns.
To reconnect the garage door to your liftmaster garage door opener manually close the garage door pull the emergency release handle down.
There are mainly two reasons for this occurrence and one of the reasons is depicted in this blog.
I have a detached garage with a liftmaster opener.
In addition it may spring across the garage due to the high tension.
We just moved into this house.
We ended up releasing the door and closing the door manually.
Every time we press the button the motor makes a temporary hum and then nothing happens.
Today we opened the door to its full open position but when we pressed the wall button to close door it would not close.
Reset the code with an exterior key pad using the learning button on the back of the unit.
When the tension spring on a garage door snaps it usually makes a great deal of noise.
Now press the remote control.
This is one reason why automatic door openers with remote control modules are practically standard equipment in homes with garages.
Try opening the garage door with the remote and see what happens.
Look for a spring that is missing broken or hanging from just one hook.
Make sure the garage doorway is clear of persons or obstructions.
The door opener has worked well for years.
My liftmaster garage door makes a humming sound but does not move up and down i have tried the my motor unit answered by a verified electronics technician.
Garage doors are heavy and opening one in the rain or at night can be a pain especially if you have to do it in a hurry.