This repair guide and video show step by step how to replace the drive and worm gears in a chain drive garage door opener.
Garage door opener hums but won t move.
The first step is to locate the emergency release and disengage it do it only if the garage door is completely closed.
If you are able to raise your garage door easily it is not the problem.
Not the garage door the opener trolley.
The next step is to attempt to open your garage door manually.
Is it all the way in the up open position.
This indicates that something in the opener system has malfunctioned.
Try to open the door manually.
Because it hums when you try to open it the battery is working properly.
Automatic garage door opener runs but door doesn t move sometimes homeowners will find that their automatic garage door opener runs but the door doesn t move.
You activate the door opener by either a remote control hand held unit or by pressing the wall button mounted on the wall and hear the motor humming but the garage door does not move.
There are mainly two reasons for this occurrence and one of the reasons is depicted in this blog.
They can hear the motor going but the door itself is not opening.
Look at it closely i ll bet it is jammed against the 5 16 bolt just in front of the motor unit.
This will determine if the issue is connected to the door itself or the opener.
If your chain drive garage door opener motor runs but the garage door won t move the drive and worm gears might be stripped or worn.
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 so loosen the chain adjuster until it is no longer jammed against the bolt run the opener down a few inches and then unplug it.