I have had an HSA3600 alarm that has operated trouble-free for 6 years.
Recently I changed the batteries in the siren. Since then, the siren has spontaneously gone off on several occasions. It has gone off whilst teh alarm is armed, whilst un-armed and we are in the house and as soon as we have entered the disarming code. What is particularly odd about this is that non of these are ever registerred in the control-units log. Looking at teh log shows only a history of armning and unarming. It is alomost as if the control unit is not getting any record of the siren going off. The siren seems properly learned in . It always has been - and when I arem the alarm, I get the light flashes on teh siren that I would expect.
It would seem reasonable to believe that teh problem is in some way related to the changing of batteries. I wodnered if the tamper switch might be playing up - but surely if there is a tamper trigger then this would be communjicated to the control unit and show in the log? I also wondered if the batteries are faulty or have a dodgy connection - and this is causing teh problem if a contact is occasionally broken....
Any suggestions please? Has anyone got any experience of this or conme across this - or does this make sense to anyone?
Recently I changed the batteries in the siren. Since then, the siren has spontaneously gone off on several occasions. It has gone off whilst teh alarm is armed, whilst un-armed and we are in the house and as soon as we have entered the disarming code. What is particularly odd about this is that non of these are ever registerred in the control-units log. Looking at teh log shows only a history of armning and unarming. It is alomost as if the control unit is not getting any record of the siren going off. The siren seems properly learned in . It always has been - and when I arem the alarm, I get the light flashes on teh siren that I would expect.
It would seem reasonable to believe that teh problem is in some way related to the changing of batteries. I wodnered if the tamper switch might be playing up - but surely if there is a tamper trigger then this would be communjicated to the control unit and show in the log? I also wondered if the batteries are faulty or have a dodgy connection - and this is causing teh problem if a contact is occasionally broken....
Any suggestions please? Has anyone got any experience of this or conme across this - or does this make sense to anyone?