I have an older genie brand garage door. Not sure what year because I bought the house 5 years ago and the house was built in 1952, so anywhere in there could be when it was bought. All I know is that it's an older chain model with no sensors so you can walk under and it will still go down. I'm not sure what is going on with the door but when you hit the button to open the door it goes up about 2 inches then back down. I can get it to go up inches at a time if I keep pushing the wall button to override the action of it putting itself back down. The same happens when its up and I try to put it back down. My dad checked the spring, and the bar, and the chain on it, and could not firgure out what was wrong with this thing, and he's usually a Macguyverin home repairs. If anyone has had a similar problem or my know what is wrong with it, please let me know any iddeas you might have! Thanks!