Fix A Garage Door Opener Chain

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.

Fix a garage door opener chain.

Once you ve replaced the worn door components check the garage door opener chain. You can put the chain back on your automatic garage door opener using a simple adjustment mechanism. 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. In this case the cable can be replaced fixing the problem.

So start by tightening the chain find the procedure in your owner s manual. The chain and cable assembly connects to the trolley and drives the trolley along the rail to raise and lower the door. Chain drive garage door openers have a sprocket that is attached at the top of the motor. Over time the sprocket s teeth can wear and the chain may jump or skip when the opener raises the door.

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. 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. A loose garage door opener chain makes loud slapping sounds and causes jerky door movements that smack the rollers against the track. Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets.

The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor. Sometimes the cable will break if it is a combination chain and cable drive system. Garage door opener won t open all the way fix. If the chain and cable assembly breaks the door won t move.

This diy repair guide explains how to replace the chain and cable assembly on a chain drive garage door opener.