[Hai-users] Out of Control ALC Lighting?

[Andrew Comstock]

We have a customer who has been upgraded from an Aegis 2000 to an Aegis
3000.  They have approximately 50 ALC lighting loads distributed on 4 loops.
The upgrade from the 2000 to 3000 was over 3 years ago, but their 3000 was
replaced recently due a problem with output #8.  I don't know what firmware
version.
 
They are having intermittent lighting problems, where amongst other things,
one load will come on for hours at a time and not turn off, even manually.
The light is off if you hold the switch off, but as soon as you let go, the
light comes back on.  After a couple of hours, it seems to operate normally
again.  I've ruled out a programming problem.
 
I know there were some upgrades on other boards (the 2-way voice board from
the old system doesn't work right).  Does anyone know of ALC board upgrades
that may reuslt in strange behavoir?  I'm scheduled to go there on Friday,
but the customer cannot seem to reproduce the problem and I'm not confident
of any of my theories.  Any recommendations are appreciated. 
 
Andrew Comstock
Alarmtech Security Systems, Inc.
519-434-3996 office
519-854-9623 cell
 

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