The most common issue that occurs is when the ridges in the gear wear out because the gear lubrication has evaporated.
Garage door sprocket not turning.
Simply push the button and see if the light comes on.
Getting out of the car at the end of a long day to open the garage door can be frustrating especially when the automatic garage door opener sounds like it s working but isn t.
So if you suddenly find that the motor on your garage door opener sounds like it s running but the door is not moving checking for worn gears is the first thing you should do.
This turns the chain and moves the door.
Having an automatic door opener in your garage is a great convenience but you have to give the opener and all its parts regular.
How to fix a chain drive garage door when it won t open.
Maybe it is as simple as a gfi or circuit breaker flipping.
As the drive shaft and sprocket rotate they drive the trolley that lifts and lowers the garage door.
However if you hear the motor turning skip to step 5.
As a result of the worn gear the sprocket cannot turn the chain and the door will not open nor close.
The plastic gear on the drive shaft is designed to fail if the garage door gets stuck in the travel tracks protecting the expensive drive motor from damage.
Shredded plastic gears are a common problem with chain driven garage door openers.
If the gear is worn or damaged the door won t move properly.
Fortunately the repair is neither difficult nor expensive and it should only take an hour of your time.
Inside the garage door opener there is going to be a gear reduction system to adapt the motor speed to the chain sprocket speed.
2 if it is getting power then disconnect the door and then see if the chain will move.