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