Google Nest Community

DaveM17 · 12-02-2022

I have a similar issue to the one community member Curtis1 posted 1 year ago:"Just installed a S Plan system with a nest thermostatLive Common to 2 and 5CH on 3HW on 6When creating a demand for CH Both 3 and 6 are liveWhen Creating a demand for HW bo...

DaveM17 · 12-08-2022

Hi @AlexD All good thanks - no further problems. The CH & HW switching totally independently according to the Nest control.

DaveM17 · 12-05-2022

@Thanks @AndaD - the wiring issue is also identified and resolved.FYI - The original wiring for the two 2-way valves was not appropriate for the Nest. Changed two wires over to permanent Live and everything is working perfectly now.

DaveM17 · 12-03-2022

Hi @DragosC,Thanks for your reply and recommendation for further testing.I have done what you suggested with the relay wires disconnected. The results are as expected:When the Nest thermostat is calling for heat, check for:Continuity between 2 and 3Y...

DaveM17 · 12-02-2022

Thanks for the reply.I have a gas boiler.I have done the testing with a multimeter and can see the following:With Heating off & HW off: 1 & 4 have power (correct)Switch HW on ie Heating off & HW on: 1 & 6 have power (correct)Switch off HW and switch ...

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