I have recently had a Veritas Intruder alarm installled in my appartments. Problem is that the electric is on a electricity pre pay card and every time the electric powers off the alarm goes back to factory settings and cannot be set to full alarm? It shows that there is a fault with zone 1 although I know that there is no PIR or contact for zone 1. I have no manual to hand and therefore have no clue how to re set! Anyone have the codes to reset full alarm?