5 0 out of 5 stars moderately easy and definitely cheap fix for broken sprocket.
Liftmaster garage door opener broken sprocket.
4 7 out of 5 stars 184 ratings.
The garage door s path may be blocked.
The safety sensors are out of alignment.
The door needs lubrication.
Common reasons your garage door opener may not be working properly.
9 85 free shipping.
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.
Reviewed in the united states on october 11 2017.
After several years the garage door springs become weaker causing more stress on this particular part causing it to fail and wear out.
This video from sears partsdirect shows how to replace the gear and sprocket assembly on a chain drive garage door opener.
The springs are broken.
The gear and sprocket assembly dri.
We also offer a full range of complete garage door opener systems from brands such as genie and liftmaster.
The track is not aligned properly.
The batteries in the remote control need to be replaced.