Recent content by ikcikc

John D Many thanks for your inputs. I think I may have got to the bottom of this. When I wiggle the cover, I can hear the anti-tamper switch engaging and disengaging - so I suspect it may just be triggering on occasion with plastic expansion, wind etc.... I took the cover off and as you...

JohnD - thanks, will have a look. I would be surprised if the wall-sensor was the problem, as the box hass been securely fixed to the wall for 6 years and this has never changed. However - I am guessing that there is a separate tamper switch for the lid being removed/in place - and I imagine...

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...