[no subject]

<joble_5@xxxxxxxxxxx> wrote in message
news:1164205631.533312.195170@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Hi,
>
> we have an alarm for 2,5 years now. It is a Rokonet system. The PIR
> detector's used are Pyronix Magnum Ultra.
>
> It worked fine for more than 2 years, but last summer we had false
> alarms almost once per week. Always on the same sensor. Sensor was
> replaced by the installer, but next night there was again a false
> alarm.
>
> The Pir is now replaced by a dual detector, and this detector seems to
> work well.
>
> The next week we had false alarms with both the two other PIR's. So
> they are also replaces by dual's.
>
> Now it has worked fine for 3 months. But the installer sends us a bill
> for the replacement of the first detector. And i think another bill for
> the two others will follow. Together this is the 25% of the price of
> the system! I do not think this is normal after 2,5 years. (The
> warranty of the system is 1 year, but on the pyronix site i read the
> pir detectors come with 5 years of warranty)
>
>
> I want to argue with the installer but first i want to learn more about
> the problem. So i have some questions:
>
> Is it possible that a fly triggers the pir?
> Can this problem be due to bad adjustment of the pir or the use of the
> wrong lenses?
> Can the reason be in the rokonet system instead of in the PIR's?
> Any other ideas???
>
>
> Thanks in advance...
> Joble
>