Nardi horn, always on?

[khilgers]

I installed my Nardi, WB hub and quick release months ago. Yesterday I saw a friend on the road, honked to him as he exited and my horn would not turn off. I pulled onto a side street and disconnected it until I got home.

I got home and took it all apart and everything seemed normal. Here are the 3 scenarios:

1) With the horn button NOT in the hub the horn won't work.
2) Once I put the horn buttom in the hub 1/2 way the horn will work.
3) When I put the horn all the way into the hub the horn will always stay on

Any ideas? I like the fact that my horn still works and would like to keep it. I know I installed everything correctly since it has literally been working fine for 6 months.