ADE Optima Compact?

My daughter has just moved into a flat with one of these alarms.

We have been unable to get the code however by using various forums I have managed to reset it.

The problem now is that I can't get the alarm to set. The warning tones simply don't start. Is there something I have forgot to do?

Read more: http://www.diynot.com/forums/alarms-cctv-telephones/ade-optima-compact-issues.407845/#3156696#ixzz382Y7gPgI