How to turn off lights that automatically come on at sunrise

Discussion in 'C-Bus Serial Protocols' started by MorganFinney, Feb 4, 2025.

  1. MorganFinney

    MorganFinney

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    Hi,
    We have lights in the whole house that are coming on at sunrise, any idea on how to disable it? I have been on schedules and it doesn’t give me the option to disable, only to change times, which currently says that daylight savings is enabled at 01:00 and disables at 02:00- which doesn’t make sense as the lights turn on at sunrise. Any help is appreciated, thank you
     
    MorganFinney, Feb 4, 2025
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  2. MorganFinney

    Conformist

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    Can you send a list of products that you have such as touchscreens (no need at this stage to tell us about switches or units in your switchboard)
     
    Conformist, Feb 4, 2025
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  3. MorganFinney

    MorganFinney

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    I’m not sure what it’s called, but I have attached a photo of the touchscreen unit we have.
     

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    MorganFinney, Feb 4, 2025
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  4. MorganFinney

    Ashley

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    This is a standard schedule that just adjusts the time when daylight saving starts and ends. It has nothing to do with your lights coming on.

    You haven't actually said whether the lights have alway come on at sunrise (i.e. were programmed to do that), or whether this is a fault that has developed recently.

    Try to remeber that the only information we have to go on is what you tell us. We're just engineers and electricians here. No mind readers unfortunately. :)

    By the way. That is a 5000CTL2 black and white touch screen. Doesn't look like it's been programmed to do much though.
     
    Ashley, Feb 4, 2025
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  5. MorganFinney

    MorganFinney

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    Hello,
    Thanks for your reply. As you can probably tell I’m not an electrician or an engineer, just a desperate 27year old woman whose baby is being woken up early every morning.
    We have been in this house approaching a year now, it started just before Christmas Day. It has never done it before, but again, we haven’t been in here a full year yet, so I’m unsure if the people before us had programmed it to come on at this time of year? If that’s possible? Or whether it is a recent fault. Also just to note, that they go off by themselves after 20 minutes of being on. I’m sorry I didn’t provide enough information before, this is all new to me, so unsure what information you need in order to help. Thank you for your help with identifying which touch screen we have.
     
    MorganFinney, Feb 5, 2025
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  6. MorganFinney

    Ashley

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    A few more questions:
    How many lights come on?
    Is it always the same lights.
    Do they come on at a fixed time each morning or exactly sunrise?
    Do they all come on at the same time?
    Do they all go off at the same time?
     
    Ashley, Feb 5, 2025
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  7. MorganFinney

    MorganFinney

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    All the lights in the house come on at the same time.
    It’s Always the same lights.
    Kitchen lights and living room lights stay on when the others turn off. And the others all turn off at the same time.
    They started coming on at 8:00 and have progressively come on earlier throughout the days as the mornings are getting lighter, they came on at 7:48am this morning, but yesterday morning came on at 7:54am.

    I have decided I’m just going to switch off the lights to the bedroom using this unit, and keep the switch down for the short term.
     

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    MorganFinney, Feb 5, 2025
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  8. MorganFinney

    Conformist

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    This is most frustrating for you Morgan
    As Ashley has highlighted, it sounds like a schedule that's switching them on. Not many devices have the ability to run schedules... Only touchscreens (like you've shown) and some other devices that run 'apps'.
    With this in mind, it's most likely your touchscreen is doing this.

    Sorry to ask so many questions, but each system and in this case, touchscreen is typically bespoke. It looks like your touchscreen only has 'buttons' on the screen that operate lights or scenes. That is, when you press one of them, something happens on the system. Those 'buttons' can also be used to take you to a different screen (menu). Assuming that none of them do, there's a possibility the person who programmed it put some hidden buttons on the screen that may take you to a different menu where you can change the behavior.
    So, try pressing parts of the screen where there is no button. Say top left, bottom left... maybe even the name on the screen.

    Between us, we'll do our best to help get back to normality.
     
    Conformist, Feb 5, 2025
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  9. MorganFinney

    Ashley

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    This is an interesting one. For us anyway. Very annoying for you :)

    For a sequence like that to be programmed in is very unusual. Not really sure what the point of it would be. There are also faults that can cause what you are seeing but generally faults aren't that repetitive. Also, a programmed schedule that changes by 7 minutes a day would have been complex to program. I know this doesn't help you much at the moment, but it has to be either a programmed function or a fault and neither seem likely at the moment, and both Conformist and I have seen lots of odd faults in our time.

    In your first post to said you had checked the schedules in the touchscreen (and just seen the daylight saving ones). How did you get to these schedules? Can you post some pictures of the pages you went through to get there?

    Also, can you post a picture of your different wall switches. I assume during the day the room switches operate the lights correctly. There should be some sort of indicator on each switch that shows when the light is on. When the lights come on in the morning, are all the switch lights on as well? Also, can you then turn the light off from the switches?
     
    Ashley, Feb 5, 2025
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  10. MorganFinney

    Wonkey

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    Slightly left of field but these touch screen also came with an Infra-red remote control, which may have been programmed to operate some lights rather than pressing the actual button
    Is it possible that you you have moved ornaments around that could be reflecting sunlight on to the screen and causing the button to be activated by an IR command
     
    Wonkey, Feb 6, 2025 at 1:23 AM
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