Craftsman 1/2 HP Garage Door Opener won't Close
Hi, my power went out today, came back on briefly and I was able to open my garage door. When I left the house, the power went off again and I had to manually close my garage door. I pulled the pull cord down so the door could be released manually. It closed with no problem. When I returned at the end of the day, I knew I couldn't use my remote to open it so I manually opened it up and then was told by a few friends that I had to reset the pull cord.
Ok, I was instructed to pull it back into place as hard as I could. Well, when I did that, the door won't close or open on it's own now. It's still open and wouldn't close manually either. What am I not doing right? I'm so frustrated, it shouldn't be this difficult. The chain will move back and forth but it doesn't seem to be catching. I even tried using the remote and wall switch. Can you please help me on what I'm not doing right and tell me how I can fix it please? Thanks in advance for your help.