If this is the case the motor will run but as the chain isn t where it should be it can t generate the lift to open the door.
Garage door motor runs but door wont lift.
Alot of companied do free onsite inspections.
It sounds like a stripped gear.
If the motor doesn t run at all you may need to replace the garage door opener logic board.
One garage door malfunction that is very frustrating is when it will not open.
Automatic garage door opener runs but door doesn t move.
When the motor is running you can clearly see the shaft and sprocket are not moving at all not even jerking when starting or stopping like something had locked up the shaft.
Although rare a failed drive motor is another reason why the door won t open.
Because it hums when you try to open it the battery is working properly.
Home owners say that they can hear the motor running but the opener simply will not operate the door.
If the motor buzzes and doesn t move an unobstructed and disconnected trolley replace the drive motor.
The motor will run but will not move the chain.
You will find many guides on how to fix the garage door opener online but it s up to you whether you want to attempt the repair yourself.
When the cord is pulled the motor is disengaged from the chain.
If the door only moves a few inches and stops the rpm sensor could be bad.
Most garage doors have an emergency release typically a red pull cord that allows the door to be opened and closed manually.
If not then contact a repairman to report to site for inspection.
They would be able to asess the situation best.
Repair garage garage door opener garage door.
When you find that your garage door motor is making a humming noise but not opening and closing it typically means that it has gone off track or needs some sort of small adjustment.
There are a number of possible causes.
Over time torsion springs wear out and break making the door too heavy for the opener to raise.