topic Re: New thermostat , furnace wont fire up in Nest Thermostats

New thermostat , furnace wont fire up

Kases3nsitive — Thu, 10 Mar 2022 03:54:45 GMT

So we bought the Nest and installed it. Once installed it said we needed a C wire? We researched and found you don’t “really” need one. We move on past that and the nest asks us a question about alternate heat sources, which confused us because we only have one but it doesn’t have an option to select just one, it only lets you pick “ I don’t know”.

we move past that and now my furnace just blows air. Never attempts to lite the pilot. It just blows air. We are pretty sure it’s something we did but we went over everything and still the same results.

we ended up hooking up my old thermostat and everything works fine, but my original thermostat is on its last days so that’s why we went out and got this one..

I believe the best isn’t working because the way we answered those “fuel source” questions. But I’m a dummy so …..

Re: New thermostat , furnace wont fire up

Patrick_Caezza — Thu, 10 Mar 2022 04:55:51 GMT

Post a picture of your current thermostat's wiring here

Re: New thermostat , furnace wont fire up

Kases3nsitive — Fri, 11 Mar 2022 02:55:08 GMT

How? Doesn’t give me the option.

Re: New thermostat , furnace wont fire up

Kases3nsitive — Fri, 11 Mar 2022 02:58:02 GMT

Re: New thermostat , furnace wont fire up

Patrick_Caezza — Fri, 11 Mar 2022 04:20:55 GMT

Oops, I meant the wiring of your original thermostat.

Re: New thermostat , furnace wont fire up

Kases3nsitive — Fri, 11 Mar 2022 04:26:41 GMT

Re: New thermostat , furnace wont fire up

Ryan_G — Tue, 24 May 2022 23:07:03 GMT

Hey folks,

Thanks for visiting the Google Nest Community.

Since this thread hasn't had activity in a while, we're going to close it to keep content fresh.

If you have additional questions, feel free to submit another post and provide as many details as possible so that others can lend a hand.

Hope this helps!

Kind regards,

Ryan