Re: ademco vista-20 open circuit, help
Crash Gordon®
Check all keypad wiring where it attaches to the keypads (in the wall or if there is a back box behid the keypad)
Check those same connections in the alarm panel.
Mice are great for chewing on keypad wires in the attic :-)
How old is the system battery ? If older than 3-5 years replace it.
After you've checked all...
Disconnect battery
Disconnect AC Power
Reconnect battery
Reconnect AC Power
"grumpy" <akap...@sigma7design.com> wrote in message news:4523c9ae.0411...@posting.google.com...
| Last night we woke up to a beeping sound of both keypads. "OPEN
| CIRCUIT" was displayed on one of them. I wasn't able to clear it so
| I went downstairs and unplugged the system and disconnected the
| battery. The following morning I plugged it back in, OC cleared, but
| the system is now refusing to register fault on any zone. After it is
| armed I could open any door or triger any motion with no alarm. In
| disarmed mode the green "ready" light is always on even with faulted
| zones. Is it time to replace the board? Thanks for your help.
|
G. Morgan
used 32 lines of text to write in newsgroup: alt.security.alarms
>OC means one of the keypad wires is broken or intermittant...I think it's the yellow one (could be the green, I forget) it's one of the data bus wires that are yellow or green.
>
>Check all keypad wiring where it attaches to the keypads (in the wall or if there is a back box behid the keypad)
>
>Check those same connections in the alarm panel.
>
>Mice are great for chewing on keypad wires in the attic :-)
>
>How old is the system battery ? If older than 3-5 years replace it.
>
>After you've checked all...
>
>Disconnect battery
>Disconnect AC Power
>Reconnect battery
>Reconnect AC Power
I always have applied AC first, then battery. Is there a reason why
you connect the battery first?
--
-Graham
Remove the 'snails' from my email
Frank Olson
news:9AOqd.21$eP3....@news.uswest.net...
OC means one of the keypad wires is broken or intermittant...I think it's
the yellow one (could be the green, I forget) it's one of the data bus wires
that are yellow or green.
Check all keypad wiring where it attaches to the keypads (in the wall or if
there is a back box behid the keypad)
Check those same connections in the alarm panel.
Mice are great for chewing on keypad wires in the attic :-)
How old is the system battery ? If older than 3-5 years replace it.
After you've checked all...
Disconnect battery
Disconnect AC Power
Reconnect battery
Reconnect AC Power
Follow the manufacturer's instructions with respect to powering up any
panel. Some advise hooking up the battery first, but if you did that with
most fire panels, you could wind up frying something ("releasing the
carefully packaged blue smoke").
--
Frank Olson
http://www.yoursecuritysource.com
Free listings for qualified dealers and industry professionals
You can read the ASA FAQ at
http://www.yoursecuritysource.com/asafaq.htm
Robert Bass
Here's one more suggestion for you. If there are more than one keypad on
the system, swap the bad one with a good one. If the problem follows the
keypad, replace it. If the problem stays put, take another look at the
wiring. Besides broken wires, keypads can act up due to inducted AC
voltage. If something else electrical was recently changed you might
develop such a problem even though the panel worked fine previously.
--
Regards,
Robert L Bass
=============================>
Bass Home Electronics
2291 Pine View Circle
Sarasota · Florida · 34231
877-722-8900 Sales & Tech Support
http://www.bassburglaralarms.com
=============================>
> Thanks for the advice. Checked the wiring,
> looks fine. The key pad appears to be
> working just fine, I could arm / disarm, all info is
> displayed correctly. I don't think it is a
> wiring problem. Any other suggestions?
Crash Gordon®
check all wiring
then try powering system down and back up again; battery/transformer/transformer/battery
not displaying faults could be anything, but you have to address the OC problem first.
James B
gets low but when it gets down under 10 volts. Even though it still has AC
power it does not have enough to run the keypad bus while it is trying to
charge a faulty or extremely low battery. You might check to be sure the Aux
power is not overloaded, and the battery is good. I usualy just replace the
battery and cycle the power on the control to take care of it.
James
"Crash Gordon®" <NOVIAGRAPLE...@siriussystems.com> wrote in message
news:jIard.22$io4....@news.uswest.net...
Crash Gordon®
i don't even bother testing them anymore if they're 3-5 years old, we replace them - in the long run it's cheaper for the client to have it replaced while we're there than have beeping keypad problems at 3am on holiday weekend :-)
"James B" <ja...@dencosecurity.com> wrote in message news:0-udne9gTq2...@comcast.com...
Crash Gordon®
Disconnect battery, Disconnect AC, Reconnect AC, Reconnect battery.
Thats what I meant to type.
"G. Morgan" <alarmp...@snailgmail.com> wrote in message news:41b4bd51...@schoolofhardknocks.edu...
Crash Gordon®
I mis-typed that sequence anyway...hope there's no blue smoke out there.
Most panels I've worked on are AC then Batt, although I've run into a few the other way. Never smoked one either way...maybe a locked up keypad but no blue smoke :-)
Remember those stupid Ademco panels that had DC "power packs" that looked exactly like transformers? Sheesh that was dumb design. Can't remember what model it was, but it was annoying.
"Frank Olson" <Use_the_em...@yoursecuritysource.com> wrote in message news:gCSqd.384750$%k.161083@pd7tw2no...
G. Morgan
used 59 lines of text to write in newsgroup: alt.security.alarms
>Remember those stupid Ademco panels that had DC "power packs" that looked exactly like transformers? Sheesh that was dumb design. Can't remember what model it was, but it was annoying.
Heh.. You should of been here a couple of years ago. There was a 6
month long debate over the existence of "DC transformers".
Crash Gordon®
"G. Morgan" <alarmp...@snailgmail.com> wrote in message news:41b360c6...@schoolofhardknocks.edu...
Alarminex
=?Windows-1252?Q?Crash_Gordon=AE?= <NOVIAGRAPLE...@siriussystems.com>
writes:
>Subject: Re: ademco vista-20 open circuit, help
>From: =?Windows-1252?Q?Crash_Gordon=AE?=
><NOVIAGRAPLE...@siriussystems.com>
>Date: Wed, 1 Dec 2004 17:06:06 -0700
>
>I love the smell of blue smoke in the morning.
>I mis-typed that sequence anyway...hope there's no blue smoke out there.
>
>Most panels I've worked on are AC then Batt, although I've run into a =
>few the other way. Never smoked one either way...maybe a locked up =
>keypad but no blue smoke :-)
>
>Remember those stupid Ademco panels that had DC "power packs" that =
>looked exactly like transformers? Sheesh that was dumb design. Can't =
>remember what model it was, but it was annoying.
>
In this group, they're called DC transformers, out of respect for a former ASA
group participant. );-]
(just kidding .......... inside joke......... too long to explain)
>
>
Jim
(Email accepted only upon request.)
Some days it's just not worth chewing through the restraints...
Group Moderator
Date: 12/1/2004 7:25 P.M. Eastern Standard Time
Message-id: <41b360c6...@schoolofhardknocks.edu>
--
-Graham
Mike Said :
There are DC transformers - You Test Tube Baby
Mike, Sr.
33 Years in the trade
http://www.AlarmServicesInc.com
http://www.AlarmSuperStore.com
"Your One Stop Alarm Shop"
Free Shipping on orders of $100.00 - all others just $5.95
See site for details
Crash Gordon®
"Alarminex" <alar...@aol.comQzap> wrote in message news:20041202014034...@mb-m25.aol.com...
Crash Gordon®
"grumpy" <akap...@sigma7design.com> wrote in message news:4523c9ae.04113...@posting.google.com...
| Thanks for the advice. Checked the wiring, looks fine. The key pad
| appears to be working just fine, I could arm / disarm, all info is
| displayed correctly. I don't think it is a wiring problem. Any other
| suggestions?
|
|
| "Frank Olson" <Use_the_em...@yoursecuritysource.com> wrote in message news:<gCSqd.384750$%k.161083@pd7tw2no>...