User codes

["medge243@xxxxxxxxx" <medge243@xxxxxxxxx>]

I have a Caddx NX8 system that was in my house. No one knows what the
user
codes are and I have tried contacting the installer, but they have gone
out
of business. The alarm system was armed and has alarmed but nothing I
put in
works. Can I use the 910# and reset the system and start over
programming it
and the user codes?

Thanks