We may have found other answers which could help you.
Click here for Accenta 8 House Alarmalarm key pad silent?
Honeywell Accenta Gen 4 - LCD Keypad - Power Light but not responding?
how can i fix my 9448?
why does my Accenta gen4 keypad not not illuminate?
All lights on TS510 small control panel in garage?
Accenta 8?