Courier Horn not working, Help for roady

guys

just bought a new car 2000 ford courier its booked in for roadworthy, and horn is not working the relay is clicking but no blast of the horn? what could it be

any help appreicated cheers

Sounds like it's the horn,is there power to the horn when the horn pad is depressed, if theres is and there is no sound it's the horn.

Try removing the connector to the horn at the horn itself. sometimes they get caked up with dirt and dont get a good connection. sounds like power is there but the horn is the fault. Try som wd40 on the connector also