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Thread: Comms fault on all 12 zones!

  1. #1
    Automated Home Sr Member
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    Oct 2008
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    Default Comms fault on all 12 zones!

    OK, so CD78E30C-66EA-4EBC-8F4D-42E086D606AC.jpg

    here is a mystery - Perfectly working EH system suddenly starting giving comms errors on all 12 zones yesterday - photo attached. No new wireless devices, no new Bluetooth devices, no new alarms added, no changes made to WiFi. Battery out and rest of controller has no effect. Changed batteries in many HR92 without success.

    Stranhge thing is that heating and hot water are still working, i.e. changing as needed!

    Moved controller to different parts of house no change - Any ideas please?

  2. #2
    Automated Home Legend paulockenden's Avatar
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    Apr 2015
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    Do you have hot water? If so change the battery in the temp sensor.

    In the past we’ve seen a couple of instances of a dying HW sensor causing a fault like this.

    It may not be, but for the sake of a couple of AAs it's worth a try.

    (Edit) Sorry, of course you have hot water - I just click the photo thumbnail!

  3. #3
    Automated Home Sr Member
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    Oct 2008
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    Thanks Paul - should have said have also changed those batteries as well,m same result even after reboot.

  4. #4
    Automated Home Legend
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    If all zones are suddenly reporting errors then normal deduction would say that either there is massive signal interference from something (unlikely to that extent) or the radio in your controller has failed.

    Do you get any result if you do a signal test ? Remember you can initiate a signal test from either the controller or from the HR92's...

    If that shows no result then a full factory reset of the controller would be next on my list of things to try before condemning it..

  5. #5
    Automated Home Sr Member
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    Oct 2008
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    Thanks for the suggestion. All zones show perfect reception despite the continuing errors. EH support suggested deleting all zones and reminding, and this has resolved it. Worrying though, this sort of thing should not happen.

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