Make basic checks first.
Garage door buzzes but won t open.
Many garage doors have a powerful torsion spring located horizontally above the door.
Ensure that the unit is plugged in the door isn t locked and if you are using a remote.
If the motor doesn t run at all you may need to replace the garage door opener logic board.
It typically has a small ball at the end.
When the door is lowered the spring winds up tightly creating a pulling force that helps lift the door up.
If the motor buzzes and doesn t move an unobstructed and disconnected trolley replace the drive motor.
Although rare a failed drive motor is another reason why the door won t open.
Disengage the door from the trolley by pulling the emergency cord if none of the basic checks reveals a simple.
As we have mentioned in previous blogs the torsion springs are the muscle of the door and pull it up and place it down properly.
Unfortunately this is just something that happens with usage over time.
If the door only moves a few inches and stops the rpm sensor could be bad.
How to fix a chain drive garage door when it won t open 1.