So if you are pressing your wall console or remote and you hear the operator making noise but the door is not moving you just might need to replace your drive gear or screw drive coupler.
Garage door opener making noise but not moving.
Worn gears inside the garage door opener s motor unit can make grinding or buzzing noises.
If it s on the way out that could explain the intermittent failure.
If you can manually lift the door then i d start by checking the motor capacitor.
This is frustrating especially if you re trying to get your car out of the garage.
Sometimes homeowners will find that their automatic garage door opener runs but the door doesn t move.
Unfortunately these parts often go out over time which may cause your garage door opener to no longer function.
Automatic garage door opener runs but door doesn t move.
They can hear the motor going but the door itself is not opening.
It sounds to me like the motor is not starting.
You may notice physical damage to the capacitor leaking buldging etc.