I cannot arm my system; the ready light is not on, what should I do?

If the “ready” light is not on, that means that a zone is open.   The keypad will show you which zone is open.   Either a window or a door or perhaps something is in the way of a motion detector.  First you should make sure all doors and windows are closed.    If you cannot close a zone and get the “ready” light, you may bypass the problem zone.  Please check your user manual to find out how to bypass a zone on your keypad.  Bypassing an open zone will allow you to get the “ready” light and thereby arm the remainder of the zones.