Garage Opener recognizes remote, but door won't open
I have a Craftsman garage door opener in the house I just bought. The wireless remote worked for about 2 days and is no longer working. I have replaced the battery, but no luck. The remote part number is 13953681B, if that helps.
I got up and looked at the main box on the ceiling and when I hit the remote, the receive light blinks, but the door doesn't open. I tried syncing the signal again by following the directions on it, but that didn't work. I also cleared all codes and then synced it, but still it won't open. I am not sure what to do.
The attena is sticking out and seems fine. Nothing has changed since it last worked expect for the fact that it won't open.
Any help is appreciated. Thanks!