How can I change the engineers code to my own (Citadel VR8)?

I recently moved into a new house which has sensors everywhere and hooked up to a Citadel VR8 alarm system. The main fuse had been pulled by the previous owner cause the house was sitting empty for a while. When I plugged the main fuse back in I managed to find out the engineers code to reset it, the problem is that I cannot change the eng. code to my own code and cannot set the alarm with the eng. code either, the keypad just keeps bleeping but not setting the system... any ideas? The sensors are active.
Scotty, April 2011


done
Thanks - this one looks identical to the one I have but there is no remote keypad with mine.

http://www.alertelectrical.com/prod/965/texecom-veritas-r8-burglar-alarm-control-panel

Scotty, April 2011
Just a thought.

Might be a Texecom control panel, re-badged as Citadel.

Do a search for Texecom, see what pictures you can find

acorn, April 2011
link Click here to see other fixes for Citadel VR8.