having problems getting the horn to blow

everything has been installed correctly. compressor works and plenty of air pressure from the tank to the horns. took the selinoid apart and made sure it worked properly… when i hit the monitary switch i just hear air coming from the horns but no horn sound… im stuck and cant figure it out. i tried to look at the diaphragms but i cant figure out how to access it…

Welcome to the forum. Firstly, what horns do you have? Do you get any sound at all or just air?
Post some details or pics of your setup if you got 'em.

Welcome. Like DBO, we need more info.