Our garage door opener just began making a loud grinding noise, and wouldn’t lift the door. It would go up maybe a foot, then quit. it could then close it when I pressed the button again.
I am able to detach the opener, and manually lift the door, and that sounds normal. If I run the opener with the door not attached, it will go up and down, and make the grinding noise. I reattached the door, and the opener was able to close the door.
Probably related: we’re having a sharp drop in temperature, and it’s -6F outside now. It is an attached garage though, so it wouldn’t be that cold. My kids left it open during and for a while after shoveling the snow, but when my wife closed it, she didn’t notice any more noise. (That doesn’t mean there wasn’t any noise, though.) At any rate, it’s the coldest it would have been for many years.
Suggestions? I have 3-in-1 oil, but I’m not sure where in particular to use it. The whole chain (it’s chain drive, not screw drive), or just one end or the other? Will that even help, or did I probably break a gear tooth or something?
The opener is 15 years old. If I need to replace it, is that a DIY item? The door itself seems to be OK. I had its spring replaced about 4 years ago. It’s a two-car garage.