topic Re: furnace blower in Nest Thermostats

furnace blower

MrRoboto — Fri, 14 Oct 2022 16:46:38 GMT

My first heating system with my new Nest thermostat. On every heat cycle, I noticed first the blower will run for about 5 seconds, then shut off, then the furnace ignites normally, and blower will turn on as it should. Just wondering if that initial 5 second run of the blower before igniting is normal with the Nest thermostat. It never did that with my old thermostat on the same furnace. Other than that, the thermostat and furnace are working fine.

Re: furnace blower

EdwardT — Tue, 18 Oct 2022 19:16:49 GMT

Hi MrRoboto,

Thanks for reaching out. I'm sorry to hear that you're having an issue with your Nest Thermostat. I'd love to know more about this and I have a few questions:

What type of Nest Thermostat do you have?
How is your Nest Thermostat wired?
What is the power reading of your Nest Thermostat? You can find this info by going to Settings > Technical Info > Power.

Looking forward to your response.

Thanks,

Edward

Re: furnace blower

EdwardT — Fri, 21 Oct 2022 20:01:32 GMT

Hi MrRoboto,

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do.

Thanks,

Edward

Re: furnace blower

MrRoboto — Fri, 21 Oct 2022 20:18:30 GMT

Still waiting for an answer to my initial concern.

Re: furnace blower

EdwardT — Fri, 21 Oct 2022 20:29:22 GMT

Hi MrRoboto,

Thanks for the response. We need more information about your system so we could troubleshoot. Please reply with the answers on our questions from our first response.

Thanks,

Edward

Re: furnace blower

MrRoboto — Fri, 21 Oct 2022 20:56:48 GMT

It is a Nest Gen 3 Learning thermostat. I have attached a photo of the wiring. In the picture it looks like the white wire is not in all the way, but since the photo I have corrected that with no change. The Battery is 3.850V, Voc is 39.45V, VIN is 38.49V, LIN is 38.15 V Lin

Re: furnace blower

EdwardT — Fri, 21 Oct 2022 21:27:53 GMT

Hey MrRoboto,

Thanks for the response. We'd like to know more about this. Please fill out this form so we could investigate further.

Thanks,

Edward

Re: furnace blower

EdwardT — Mon, 24 Oct 2022 22:57:14 GMT

Hi MrRoboto,

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do.

Thanks,

Edward

Re: furnace blower

MrRoboto — Tue, 25 Oct 2022 15:15:30 GMT

Christian from Nest contacted me and had me check my equipment settings. Turns out mine was set on electric furnace, while I have a gas furnace. I made the change, and the problem has been resolved. Thanks Christian!

Re: furnace blower

Markjosephp — Tue, 25 Oct 2022 19:58:35 GMT

Hello folks,

I appreciate the followup, @EdwardT.

Thanks for updating us on how your concern has been resolved by changing the fuel type from electric to gas—hats off to you!

If there’s anything else we can help you with, please let us know as we'll be locking the thread in 24 hours.

Best regards,

Mark