When you re sure remove the vice grips and manually open and close the door to check it is running smoothly.
Garage door gear broke off.
This can be easily replaced by a garage door service technician.
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.
The gear will cost about 50 00 with shipping and then the cost of having someone install it.
Position a work table near the area under your motor unit to hold the garage door opener.
This is the part that connects the motor to the chain or belt.
The gear and sprocket assembly is inside the cover of the garage door opener motor.
Place a stepladder near the motor and unplug the power cord for the motor from the electrical.
A new garage door open start around 130 00 plus installation.
Garage door openers.
Replace the garage door opener gear and sprocket assembly as the drive shaft and sprocket rotate they drive the trolley that lifts and lowers the garage door.
Remove the chain and cable assembly.
If you have any doubts seek professional help so that it does not cause the door to crash down potentially injuring someone.
Lower the motor unit down.
The cost of the new gear and sprocket replacement is around 160 220 depending on the state and area you live in and it s include labor to install the new part.
One of the most common repairs on a liftmaster garage door opener is a broken gear sprocket.
Craftsman chain drive garage door opener make noise and the gear sprocket about to break.
It will usually run about 200 00 total.
Use a step ladder to access the garage door opener s power cord and motor unit.
I hope this will help.