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noungning t1_iy9vmzp wrote

I bought 2 when someone else posted it.

I have the nicer one but it doesn't have battery and died in the winter because it didn't get enough power from the boiler lol. I kept talking to Nest and they sent me 2 new ones to try and it kept on having the same issue. And they basically abandoned troubleshooting.

But since I saw that this model has the battery I figure I'd try it again. But I won't be installing it til sometime in the spring just in case it doesn't work and we'd freeze in the winter unless I swap it with the old thermostat again.

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mintsandcoke t1_iya5mrq wrote

Do you have a common wire? I didn’t have one on my boiler and had to run the nest power connector to get it to work. This thread was helpful.

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noungning t1_iya5yi0 wrote

I have a common wire on my AC but not on my boiler, so it works fine in the summer, but not in the winter lol. I tried almost everything in 2018 and finally gave up. That old one is in a box somewhere in my closet.

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internetTroll151 t1_iybbzj2 wrote

The common wire should provide continuous power, even when the system is off

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