Galaxy 48 strobe not staying on

[Keef]

Ok, thanks for the replies.

I will just keep omitting the zone to keep it simple. 
 

I did lie about no more questions though !

 

On my siren there is a link for “ENG” which I assume is to hold off the siren when servicing it. Is that a + or - feed, or should it be connected somewhere else on the main board, such as RIO 1003 and programmed, hope that makes sense ?

 

Thanks, Keith