Google Nest Community

MikeFitz · 02-06-2023

Just bought a Nest Snow. Old thermostat has red and white wires (plus blue, but it is not connected to anything at the boiler end). Tired connecting red to R term of Nest, and white to W. Nest said I needed to power connector, so ordered that. When i...

MikeFitz · 04-10-2023

I plan to dig out the multimeter and follow the earlier recommendations to see if I can find a C wire and connect it. I will need to uninstall the power connector to start with a clean slate.

MikeFitz · 03-22-2023

I appreciate all the info, but what I really need is a recommendation for how to make this thing work, either with or without the Nest power connector. If I connect the T terminals to the R and W terminals of the Nest, the Nest gets power until it ca...

MikeFitz · 03-22-2023

Yes, I metered the terminals. When not calling for heat, you see 30+ volts AC. When calling for heat, you see zero, as the thermostat closes the loop and you get a short. Since the R and C terminals of the Nest need to have the 24-volt power feed. Wh...

MikeFitz · 03-22-2023

There is no air conditioner. It is a very old oil-fired boiler. Boiler has the two "T" terminals. What I need is to power the Nest with the 24-volt transformer I bought and then connect the two "T" terminals to two terminals on the Nest that will clo...

MikeFitz · 03-22-2023

Still not working as it should. I tried adding a C-wire connection with a spare conductor, running it to one side of the 24V transformer. The boiler would fire, but the power connector power test won't run. It gives the warning about the test running...

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Help with Nest Snow installation

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Re: Help with Nest Snow installation