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Nest 3rd Gen and Vaillant ecotec 624 y-plan system

Discussion in 'Plumbing and Central Heating' started by SiC, 26 Nov 2019.

  1. SiC

    SiC

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    Hi - I know there are multiple post regarding Next setup and connection however I'm unable to find any information on my specific issue. I this has been covered, please point me in the right direction.

    I have a y plan system with a Vaillant ecotec boiler set up with a 3rd gen Nest. When turning the heating thermostat up, the valve does move to the H position however my issue is that when the heating thermostat is turned down or off, the boiler does not cut out and continues to heat. Not sure if this a setting on the Nest or a setup issue. Any help would be appreciated! Thanks
     
  2. Chris_W

    Chris_W

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    Did you wire this up yourself?
     
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  4. ianmcd

    ianmcd

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  5. SiC

    SiC

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    Yes I did
     
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  7. SiC

    SiC

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