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RE: Anyone know how to revive an AD10


  • To: <ukha_d@xxxxxxx>
  • Subject: RE: Anyone know how to revive an AD10
  • From: "Keith Doxey" <ukha@xxxxxxx>
  • Date: Fri, 1 Feb 2002 22:52:06 -0000
  • Delivered-to: mailing list ukha_d@xxxxxxx
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

Title: Message
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 
-----Original Message-----
From: Steve Morgan [mailto:steve@xxxxxxx]
Sent: 01 February 2002 17:11
To: ukha_d@xxxxxxxSubject: 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@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?
 


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