The door needs lubrication.
Liftmaster garage door opener broken sprocket.
The garage door s path may be blocked.
4 7 out of 5 stars 184 ratings.
Reviewed in the united states on october 11 2017.
Liftmaster garage door openers 25a18 sprocket coupling visit the liftmaster store.
9 85 free shipping.
The track is not aligned properly.
One of the most common repairs on a liftmaster garage door opener is a broken gear sprocket.
After several years the garage door springs become weaker causing more stress on this particular part causing it to fail and wear out.
The springs are broken.
The safety sensors are out of alignment.
5 0 out of 5 stars moderately easy and definitely cheap fix for broken sprocket.
The gear and sprocket assembly dri.
This video from sears partsdirect shows how to replace the gear and sprocket assembly on a chain drive garage door opener.
This is the part that connects the motor to the chain or belt.
These door openers are perfect for adding an extra remote to multi car and family situations or just to replace lost or broken garage door openers.