Over time the sprocket s teeth can wear and the chain may jump or skip when the opener raises the door.
Fix garage door opener chain.
Garage door opener is very strong and seldom does the chain actually break.
Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast.
The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
Here are the eight most common problems along with the most likely repairs for each.
For many generations people rely on this type of door opener not only because it is easy to use but also because it is cheap and can easily be repaired when broken.
A garage door opener chain may make a lot of noise when you pull it to open your door but it is one of the most reliable types of door openers ever invented.
When your garage door opener suddenly stops operating properly the cause of the problem is usually pretty simple to understand and the solution is usually quite easy.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets.
If none of the following fixes seem to correct the problem you will need to consult the owner s manual or contact a professional.
You can put the chain back on your automatic garage door opener using a simple adjustment mechanism.
So start by tightening the chain find the procedure in your owner s manual.
Sometimes the cable will break if it is a combination chain and cable drive system.
Chain driven garage door openers should have some slack in the chain for optimal performance.
A loose garage door opener chain makes loud slapping sounds and causes jerky door movements that smack the rollers against the track.
Garage door opener won t open all the way fix.
Once you ve replaced the worn door components check the garage door opener chain.