A worn belt or chain and cable assembly can also make noise tighten chain or belt tension to correct this problem.
Garage door opener making noise but not moving.
It sounds to me like the motor is not starting.
Unfortunately these parts often go out over time which may cause your garage door opener to no longer function.
This is frustrating especially if you re trying to get your car out of the garage.
If it s on the way out that could explain the intermittent failure.
Sometimes homeowners will find that their automatic garage door opener runs but the door doesn t move.
Worn gears inside the garage door opener s motor unit can make grinding or buzzing noises.
If you can manually lift the door then i d start by checking the motor capacitor.
Replace the gear and sprocket assembly or the drive and worm gears when they re worn and making noises.
Automatic garage door opener runs but door doesn t move.
They can hear the motor going but the door itself is not opening.