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Thread: lights turning on by themselves

  1. #1
    Automated Home Jr Member
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    Default lights turning on by themselves

    Hi.

    I have several X10-enabled wall switches in my house. A couple of days ago (without any changes in the electricity configuration) they started behaving oddly - switching on without any command (especially nice in the middle of the night).

    First, I turned all all X10 command senders (RF tranciever and computer module) - but the behaviour did not change.

    Then I changed the house code (thinking bad about my neighbors ) - but it helped for one night only. Actually, during that night one wall switch was still using old house code, I switched it to the new one next morning - but when lights started turning on again last night, switching it back to the old house code did not help either. Still, I am now suspecting this switch in generating some X10-related noise (is it possible?)

    So, now I have pretty annoying behavior of the lights in the night - I have to take fuses out of them in order to sleep well

    Any help would be highly appreciated.

  2. #2
    Moderator toscal's Avatar
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    Default Re: lights turning on by themselves

    If you have a CM11 try taking the batteries out, for a few hours. You can leave them out unless you need the built in clock, as all they do is keep the internal clock running during a powercut.
    If that doesn´t work you may neeed an X10 filter such as an FD10, fitted in you fuse box. I would fit one of these any way.

  3. #3
    Automated Home Jr Member
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    Default Re: lights turning on by themselves

    Thanks, I will try it tonight!

  4. #4
    Automated Home Jr Member Jimll's Avatar
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    Default Re: lights turning on by themselves

    I would add to toscals post and leaving it unplugged for a couple of hours also.

  5. #5
    Automated Home Jr Member
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    Default Re: lights turning on by themselves

    I did as you advised. Moreover, I took the controller out of the mains for a night. And still a couple of times lights went on during that night. IMHO it proves controller has nothing to do with it (or at least it is not only controller's trouble). Any more ideas? Could it be caused by any of the X10-enabled wall switchers gone mad (some fault in electronics)?

  6. #6
    Automated Home Lurker
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    Default Re: lights turning on by themselves

    could it be that your neighbours also have X10 modules, and you are cross controlling?

  7. #7
    Automated Home Lurker
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    Default Re: lights turning on by themselves

    Hello,

    If you have a CM11 then you must be using PC control.
    Is your PC running the system 24/7, ie Homeseer etc.
    Can you look in the log file and see if it's an x10 command that operates your lights at these strange times.
    If it's not then this proves that its not a x10 command being sent across your system.
    And points at a fault in the light modules.

    Just an idea.
    Hope it helps.
    Good Luck !

    Dee.

  8. #8
    Automated Home Jr Member
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    Default Re: lights turning on by themselves

    Quote Originally Posted by IanH
    could it be that your neighbours also have X10 modules, and you are cross controlling?
    That was the first thing I thought of (which is highly unlikely though). That is why I changed the house code. Two times. With no effect

  9. #9
    Automated Home Jr Member
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    Default Re: lights turning on by themselves

    Quote Originally Posted by Dazman
    Hello,

    If you have a CM11 then you must be using PC control.
    Is your PC running the system 24/7, ie Homeseer etc.
    Yes I do run Heyu (it is the solution for linux). It shows in the log all the events - for example, when I use remote control to switch lights on/off.

    Quote Originally Posted by Dazman
    Can you look in the log file and see if it's an x10 command that operates your lights at these strange times.
    Sure I did it. No commands. It is just shows my desperate "All Lights Off" which I send from remote control (being crudely woken up by the lights - in the middle of the night :twisted: ) That's what really puzzles me!

    If it's not then this proves that its not a x10 command being sent across your system.
    And points at a fault in the light modules.
    Then what it is? Can several light modules (4!) become faulty simultaneously?

  10. #10
    Moderator toscal's Avatar
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    Default Re: lights turning on by themselves

    Have you tried a whole house X10 filter such as an FD10. This will prevent X10 signals from entering or leaving the house. It also filters out any noise around the 120 KHz, which is the frequency X10 uses. Something else to think about is you may have an appliance causing noise. Try unplugging things like washing machine etc. Also check your consumer unit there could be a loose connection, you might want an electrician to do this one. What else, try disabling all modules except one then gradually put the others back one at a time.
    This is where an X10 data logger comes in handy, these measure X10 signal strength and the noise you have on the mains.

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