We may have found other answers which could help you.
Success
Message
which is the enter key?
Alarm goes off when electricity gives off?
how to get my security system back up ?
Missing battery/system reset?
replacing new batttery in 9450 alarm system ?
"aux dc fail " ?
Reset alarm without knowing code?
Keeps going off,,,when NOT set?
How to silent set my alarm at night?
Key pad 9827 with control panel 9800 suddenly went off showing bF?
Replacement parts?