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Garage door opener just hums..?

The Garage door of my house opener just hums… doesn’t lift the door.

The power is on,becasue the light on the garage door is still on.

The Remotes as well as the door opener on the wall all function same. I can manually lift the door.

Answer:

I think the situtation could be the gears are out and the motor is running but not moving the door. Take the cover off and if a bunch of white stuff falls out, the gears are gone. You can get gear kits for around 25-30 dollars depending on which brand you have