Quote Originally Posted by Richard Lane View Post
If you take it off of the camera and push the pilot button in, does it work then?

Does the 430EXII work on your 7D?
No, the pilot button doesn't work off-camera. The 430 works fine on my 7D.

I took some shots this morning of the dogs using it and it worked fine & then I was outside taking some shots of flowers and didn't see any problems with it. I went back to use it this afternoon and it all of a sudden decided not to do anything but turn on.