Re: False alarm due to temperature????

[tourman <robercampbell@xxxxxxxxx>]

On Jan 3, 10:25 am, bo...@xxxxxxxx wrote:
> Hi,
>
> Back in September lightning struck my self installed, wired alarm
> system.  It is an old radio shack unit.  I replaced all contacts and
> everything has been working fine until last night.  I had a false
> alarm about 4 in the morning.  The zone that went off consists of 3
> windows.  All were closed.  I reset the alarm and it showed that the
> sensors were normal - closed.
>
> So for sme reason the system tripped for a second, but I don't know
> why.  The temp got down to 36 F which is the coldest we've had in a
> long time.  I'd like to think maybe it had something to do with
> setting off the alarm, but that does not make sense since it still
> would have shown an open sensor until the temp rose.  Any ideas on
> what I can do to diagnose the problem or duplicate it?
>
> Thanks

RHC: Sir, once an alarm has been hit by lightning, all bets are off.
Damage can be done which doesn't show up for awhile, immediately, or
never. The panel is no longer reliable once this happens and it's best
to simply replace it. You could get lucky and only have some external
components damaged; however, there are a multitude of components on
the board itself that can be damaged or stressed.

If it's monitored, have your dealer replace the main board. If it's
not monitored, then it really doesn't matter; just try to fix what
doesn't work and if that doesn't solve the problem, then replace the
panel. It can often be a real pain to trace down the problems
though....