Fix Garage Door Opener Chain

The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.

Fix garage door opener chain. So start by tightening the chain find the procedure in your owner s manual. 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. 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. A loose garage door opener chain makes loud slapping sounds and causes jerky door movements that smack the rollers against the track.

Sometimes the cable will break if it is a combination chain and cable drive system. Here are the eight most common problems along with the most likely repairs for each. Once you ve replaced the worn door components check the garage door opener chain. In this case the cable can be replaced fixing the problem.

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. Chain driven garage door openers should have some slack in the chain for optimal performance. Over time the sprocket s teeth can wear and the chain may jump or skip when the opener raises the door.

If none of the following fixes seem to correct the problem you will need to consult the owner s manual or contact a professional. In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor. Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets. You can put the chain back on your automatic garage door opener using a simple adjustment mechanism.

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.