Powered it down at midday yesterday and after 20 minutes it shut off...Problem is …. They did 4 versions
Prima 100 no cut off
Prima 200 no cut off
Prima 300 ….with cut off
Prima 500….with cut off ….normally green LEDS
Plus a Prima 030 ….single LED ( so it’s not that one )
I would wait till midday then power it down mains and battery and see if the sounder cuts in ….wait 20 mins ….time it as it seems longer….if it’s still ringing after 20 mins power the alarm back up ….then its ladder time
All removed now, thanks for the advice

