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SteveNYC · 06-18-2024

I have 2 separate systems - one for heat (hydronic boiler - Rh and W1), and a central A/C system (Y1, G, Rc) that has been working with my Nest thermostats for a few years. Suddenly, after the heating season (I think since April 2024) - the thermosta...

SteveNYC · 06-25-2024

Thank you-For the voltage check, what should it be between the Rh and W1 jumpers? I will check that out.No need for an HVAC tech, if i replace the thermostat, everything works fine. And as indicated, it worked fine for years. Its controlling the A/C ...

SteveNYC · 06-22-2024

Been down that procedure Mario already- thanks.#1, #2 - Been done, no dice.#3-There is no external power supply necessary, there the a "C" wire- this does not apply.Remember - this had been working for 3+ years, I feel like something changed in softw...

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Nest Learning Thermostat - separate Heat & A/C wiring

Re: Nest Learning Thermostat - separate Heat & A/C wiring

Re: Nest Learning Thermostat - separate Heat & A/C wiring