We have the Acenta G3 alarm in our flat but have never used it. We have had the flat for 2 1/2 years. The alarm doesn't have any lights on and we don't have an instruction manual of what to do. We want to start setting it when we leave.
Every single panel made, can be de-faulted back to factory set. I would never tell someone on here how to do that, Its not a job for the DIY person,
J, April 2009
I would suggest that as the alarm has not been used for a minimum of 2.5yrs that it is very unlikely to be in working order.
Not least it would not seem to be powered (no lights), therefore the battery inside the box is going to be dead along with the battery inside the outside box.
The only sensible way to go would be to find a local company who would be prepared to have a look and give advise/get it working.
I expect you could find the manual via Google but I'm sure you would not find all the information you would need to get it going.