Why should 9999 get you into engineering on your panel?,
It's the default code and will of been changed on installation or by an engineer who last had contact with it.
You should follow Alarms advice but you really need the engineering code, if you want full control over your system.Having this will enable you to make changes to the programming and periodically test the system to ensure everything is working correctly.
That's assuming you are not currently in a maint/service contract.
e manno
May 2013