My factory fitted alarm keeps going off randomly. This happened 3
years ago, and was told its the battery in the alarm.

I got it changed by a garage, which cured the problem.

But how easy is it to change battery in Burglar Alarm and were is it
???

Better still any ideas how to bypass the alarm, so I can keep my dog
in there with the doors locked.

gray wrote:
AFAIK the only battery in the alarm is the one in the remote which should be
changed every year or so.

Have you got an led for the alarm in the hazard switch? If so then does it
operate as it should which is to stay on for ten seconds and then start to
flash. If it starts flashing immediately it shows there is a door or bonnet
or boot switch malfunction or just that the system is broken.

Common causes of false alarms are cats wandering about.

gray wrote:
Sounds like the battery in the power sounder, google "power sounder
astra" for lots of info. Finding replacement batteries can be hard work
- although you may get more joy sourcing an alternative and bodging
something together.

Of course, if the power sounder was to "drop off" as happened on my
vauxhall, then the problem goes away.

Yes I ment to say the 'power sounder'

So you can run the car as normal with the power sounder disconnected.

I have always wanted to keep my dog in the car, without the alarm
going off. As pushing the 2 internal light switch for 10 secs, to
disable the internal sensors does not work.

So would this be OK then ??

gray wrote:
Dunno.... but mine ran for a quite a long time without one fitted

Assuming that it's common across vauxhalls (mine was not an Astra, hence
the suggestion to google for Astra) there's a warning to remove the
power-sounder within 15 secs (I think) of turning the key to "off"
position - to avoid triggering the PS. If not then have "something" to
muffle the alarm until the battery runs down. In my case, when it
eventually "fell off" the sounder lasted all of about 0.5 seconds before
the battery died.

gray wrote:
every day I learn something: the power sounder is meant to be changed as a
lump, but people do cut them open and solder in new batteries. There are
threads on honest johns and the astra club:
http://www.astraownersclub.com/vb/showthread.php?p=1106062

In message <qmb7b5hn2ueose5a8udii0qspctssv89qo (AT) 4ax (DOT) com>, gray
<gvbale (AT) balesfield (DOT) co.uk> writes
IIRC, to disable the interior sensor on the Disco 2 and my earlier
Discos (96 and 98), simply lock the door with the key, not the fob
button. Our cat died a few years back so I can't test it (my
recollection, not the cat) though I could get someone I trust to let me
out (which rules out my wife) and then jump around in there.

I've no idea how this is done in non LR vehicles but there are many on
this group who will know.
--
Peter

In message <FApfOrJ9MTtKFwLk (AT) invalid (DOT) invalid>, Peter
<nospam (AT) invalid (DOT) invalid> writes
Having looked at my Disco handbook, I can confirm my IIRC is correct
but there are a few other points:

1 all doors, although locked, are not 'superlocked'

2 the flashers go once only

3 unlocking with the key is NOT RECOMMENDED (that's LR shouting, not
me) - 'depending on the specification of the vehicle the alarm may be
disarmed'. I read this as it will happen in LRs built for some
territories. So far as I know, there's never been a problem on mine but
as I seldom check whether the alarm indicator is flashing, I can't be
sure.
--
Peter

try www.ukpanels.com/forum1