If it s on the way out that could explain the intermittent failure.
Garage door opener making noise but doesnt open.
If it is used frequently or is at least five years old odds are that it has a stripped gear kit.
The opener motor is fine but the shaft doesn t turn.
I then ask the customer the approximate age and usage of the garage door.
You may notice physical damage to the capacitor leaking buldging etc.
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.
If the motor is running on your garage door opener but the door itself isn t opening don t panic.
It sounds to me like the motor is not starting.
Replace the gear and sprocket assembly or the drive and worm gears when they re worn and making noises.
The trolley doesn t move and the door does not budge.
Worn gears inside the garage door opener s motor unit can make grinding or buzzing noises.
Because it hums when you try to open it the battery is working properly.
If you have a dent use a block of wood against it and use a hammer against the wood to hammer that dent out.
If you can manually lift the door then i d start by checking the motor capacitor.
In this video i ll show you the issue with a garage door opener that makes noise but won t move.
On some systems the garage door opener installed on the wall will override commands from the remote control opener and the system must be unlocked from the wall pad.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
The garage door opener may be making clicking noises as a result of the security lock.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
A worn belt or chain and cable assembly can also make noise tighten chain or belt tension to correct this problem.