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Hi
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
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@xxxxxxx]
Sent: 01
February 2002 14:54
To: ukha_d@xxxxxxxSubject:
[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?
For
more information: http://www.automatedhome.co.uk
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