Hi Sarah
Turn power off (or remove fuse from spurbox near by)
also remove battery terminal, then re-instate battery and power supply, as soon as you have done that enter 4321 press "PROG" button then 60, Enter a new
four figure code, press "PROG" again, then "RESET"
The panel should now go quiet. You will now have your new code entered. Just press "FULL" to set the alarm
enter code to unset.
John, Alarm engineer, June 2009