rather than a large display keypad with 16 ohm speaker which does all the tone (set/ unset, chime ect...)
you have a small display keypad with a "speaker" connected to the programmable output ?
shouldn't a young man like you be drinking cider or sniffing glue in the park ?
its old tat but try-
close the 3 tamper switches - bolt, bottom & back
leave the 2 anti foam switches open
add hold off voltage, with tampers close it should be silent
if so, wire link from rtn to & it should ring ?
a bag of plaster is £7, imagine my surprise that a plasterer wants so much more £ to apply it to a ceiling.... is almost like I'm paying towards his wages & van ect...