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Re: Ademco Vista 'OC' display problems...



On Jan 26, 2:43=A0pm, Nick Lawrence <N...@xxxxxxxxxxxxxxxx> wrote:
> Hi guys, thx for the input and suggestions.. here's more info:
>
> Fixed display, not alpha: displays OC.
>
> No lightning.
>
> Replace boards? Yes, could do that, but hoping to identify underlying
> problem, if it exists, so the replacement boards do b=3Dnot go bad too.
>
> I've just never seen a panel cause an OC condition, its always been the
> wiring.
>
> Any more thoughts?
>
>
>
> Nick Lawrence wrote:
> > Two in one day! Anyone here have any thoughts?
>
> > Same city, different accounts, lots of rain yesterday, but no electrical=

> > outages, etc.
>
> > 1. Vista 10se, been in service 5 years. Burg & holdup system.
> > while disarmed, keypad displays OC,
> > replaced keypad and its wiring, set address to 31, still shows OC.
>
> > 2. Vista 20P, in service ~1 month. Burg only system.
> > while disarmed, siren suddenly sounds continuously,
> > keypad alarm 'led' not lit, user codes do not silence siren, nor does
> > usual 15 minute timeout shut it off, still sounding when the tech arrive=
d.
> > no alarm or other signal to c/s,
> > keypad shows OC.
> > power down does not clear the OC condition.
>
> > Any thoughts as to:
> > cause?
> > solution?
>
> > Thx, Nick- Hide quoted text -
>
> - Show quoted text -

The "OC" Stands for Open Circuit. It sounds like the wiring to the
keypads DATA (grn/wht) has a fault somewhere. Obviuously you have
power.


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