I' ve got an old Paradox Esprit 728 v 1.0 default and installed in one of my clients house. It is monitored also from my ARC and untill yesterday all the previous

3 years works fine. Now we monitor alarm signals from zone 4 (first) and second from zone
  1. Z4 is a PIR and Z1 is an aleph m.c. in the entrance door. All the alarms came from Z4,Z1 with this sequence. I don't know what causes the alarm but the motion detector is just fine, the same the m.c. I believe it must has to do with the resistor for the zone doubling. I use common resistors from the market and not those provided by Paradox....

Anyone idea what cause this alarm?!?! (Z4, Z1)

Thanks in advance!

Spyros Kintzonides Greece

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