On Thu, 18 Jan 2007 21:45:04 GMT, "Sue"
wrote:

I've been operating the garage door manually - I can open and close it
easily.
Any suggestions what could be wrong with the door opener?

No, because the only opener that is having a problem is the live one.
If your door mis-aligns itself with the electric opener then the door
IS the problem. Anyone can manually open a door and correct the
alignment to make it work, but an electric garage door opener can't
make these adjustments. It's not smart enough. The other opener
should be smart enough to know it's has to be the door.