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I agree it's not good that the X10 modules
fails
this way, although it's no big surprise really.
The people at fault are Northern Ireland
Electricity. "Brown Outs" are know for damaging equipment, but to have
a
supply at under 100V for that period of time is incredible. Get onto
customer service in Culcavy - guys name you are looking for is Mr Adrian
McCauley.
They are very good at charging us 9.4p per
unit -
see how good they are at compensating you for wrecking your
gear!
M.
----- Original Message -----
Sent: Saturday, February 02, 2002 7:49
PM
Subject: [ukha_d] Re: Anyone know how
to
revive an AD10
Keith,
Thanks for the advice.
I have
turned
the power on and off, disconnected and re-connected
the supply, and
finally resorted to taking the damn things apart.
As far as I know,
the
supply was low for a few hours.
It appears that as you say, one or
both
coils on the relay have
burnt out. One unit is dead completely,
and
with not toggle on or
off, whilst the other will toggle on, but not
off. The covering
over the relays has melted, indicating an
over-current situation.
So, it looks like they will need
replaced.
To be honest, I am a bit dissappointed with how this has
happened.
The fact that both units failed so completely, does not
say much for
how they have been engineered to cater for fault
conditions. I
mean, everything else in my house appears to be
suffering no ill
effects, whereas the units bought to control mains,
cannot cope with
a problem with the
mains.
Cheers
Derek
--- In ukha_d@y..., "Keith Doxey"
<ukha@d...> wrote:
> MessageHi derek,
>
> Probably
too stupid a comment but .....
>
> in your original message
you
say the voltage was low and that it
later
> resumed to
normal.
> Did the power go completely OFF at any time?
> Have
you
turned the power off at the mains ?
>
> If the answer to both
the
above is no, then there is a possibility
that they
> have just
locked up and are refusing to respond.
>
> If you have already
done that and they still dont work then it is
possible
> that the
relay coil has burnt out. The modules have a mechanically
latching
>
relay which only required power to change state. The module senses
the
state
> of the relay and if it is in the wrong state will pulse it to
set
it to the
> correct state. That is why appliance modules
sometimes chatter.
>
> If the module was confused by the low
voltage it could have
energised the
> relay for a long period of
time and burnt it out. There is another
slim
> possibility, the
info
on modifying 120V module to 240V includes
putting a
> resistor in
series with the relay coil to prevent the 240v from
burning out
>
the 120v relay coil. Depending on how X10 have made these 240v
modules
there
> are two possibilities
> 1. They have used a 240V relay
in
which case it may well be dead.
> 2. they have used the same
relay
as in 120v modules but fitted a
resistor
> in which case the
resistor could be fried.
>
> The resistor (if it exists) could
easily be replaced. The relay
would
> probably be imossible to
source. Having said that, if the relay is
the
> fault, there is
almost certain that an Applance Module would use
the same
> relay
as
the AD10. Appliance modules are considerably cheaper than
DIN
>
modules so it could be a donor for a transplant.
>
> Let us
know
how you get on..... and be careful :-)
>
>
Keith
> -----Original Message-----
>
From:
Steve Morgan [mailto:steve@s...]
> Sent: 01 February 2002
17:11
> To: ukha_d@xxxxxxx> Subject:
RE:
[ukha_d] Anyone know how to revive an AD10
>
>
> The one that's stuck on: try flicking the override
switch
on and
off
> several times - it's possible the contacts have
welded
together
but they can
> usually be freed up with some
persistence.
>
> Steve
>
>
-----Original Message-----
> From: Derek Clydesdale
[mailto:derek.clydesdale@b...]
> Sent: 01 February 2002
14:54
> To: ukha_d@xxxxxxx> Subject:
[ukha_d] Anyone know how to revive an AD10
>
<snip>
> However, my AD10's are
buggered.
>
> One, which controls the
heat, and was probably "on" at the
time the
> voltage dropped, is
now permenantly "on" all the time. Neither
sending X10
>
commands or using the over-ride switch to force it off will work.
>
> The other, which was "off" at the time, is
now permenantly
off, and like
> above, cannot be forced
on.
>
> I have tried applying mains to the
momentary
contact or toggle
inputs to
> see if that works - but no
joy.
>
> I opened one to see if there
is
any visible damage, but it
looks fine.
>
> Any ideas how I could fix them?
>
>
> Yahoo!
Groups
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>
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>
> For
more
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>
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