Ademco 5240

Arm
[4-digit code]
Green light on = Ready to arm.
Red light on = Armed.
Disarm
[4-digit code]
Check Faulted Zones
If a zone is faulted, the green light will not be lit on the keypad.
Check control panel lights. Usually has Basic Prot 1, Basic Prot 2 and Delay zones.
Faulted zone(s) will be lit.
Change code
Must be done on site – change jumpers on back of keypad.
Power down panel
Pull one wire on battery in panel then unplug the panel transformer if you know where it is.
It is a beige box plugged into a nearby power outlet. Click here for a picture.
If you can’t find it, then disconnect AC wire; Far right terminal on bottom terminal strip, left side of panel.
User Manual