Guardsman 3000M Trouble

System will be Armed if its powered down then back up
RDY Light
OFF System has no power
ON AC Power OK
FLASHING Low Backup Battery
MODE Light
OFF System Disarmed
ON System Armed
FLASHING System Armed in HOME Mode
OFF System is calling Monitoring Station
ON System is in Alarm
FLASHING System has called Monitoring Station
Test Mode 1. Enter 4-Digit Code + */TEST
2. Open all Sensors, keypad will beep
3. Press #/OFF Button to Exit