This can be caused by two different things.
Stanley garage door opener chain loose.
Adjust the amount of travel in the system to keep the door to a specific stopping point.
Another problem that might cause this is a malfunction of the electronic eye.
Watch this video and see the professional at town country door llc demonstrates the.
This is common on the stanley chain drives that utilize the tubular style track graphic below.
Garage door opener is very strong and seldom does the chain actually break.
Sometimes the cable will break if it is a combination chain and cable drive system.
There is a bolt that is turned clockwise to actually extend the length of the track thus removing the slack from the chain.
You may find that a loose garage door opener chain has less power to open and close your garage door or you may find that it is just hitting the door as it moves it and creating an annoying sound.
The chain connects to a threaded anchor that you can move in and out to tighten or loosen the chain as needed.
Same rule applies concerning recommended chain slack.
You can put the chain back on your automatic garage door opener using a simple adjustment mechanism.
A sagging chain is a result of normal usage of the garage door opener.
Don t overtighten the chain.
Because chains are lubricated with grease you can expect to get a little dirty while putting the chain back on your opener.
One of the problems can be with the travel length of the garage door opener itself.
If you find that your garage door opener chain has become loose with time you may want to tighten it up in order to remove some of that slack.
The most common cause for the.