While you wait for answers, we may have found some information which could help you.
Success
Message
Scantronics 9450 box stuck shut?
Factory reset?
Thorn tc3800 house alarm?
Disable Alarm Scantronic 9800?
Melcom ST4500 Jaytech?
How to turn of tamper alarm on Logic Six house alarm?
Missing key Logic 4?
Tamper won't go off?
Scantronic 9651 alarm?
Yale alarm app requires password/login?
How long does house alarm go for?
Cooper Scantronic 9448 alarm?