Intermittent Nest thermostat

[Marco62]

Intermittent problem: Thermostat is set to a temperature and the display is orange but furnace does not turn on. Most other times it fine. If I turn the dial down on temp and back up to desired setting it usually kicks back on. I tried resetting thermostat and turning off and on my IPhone in case it is an APP problem. All software is up to date and been working fine for many years

[dw7]

Having a similar problem after the installation of a new furnace.

[Marco62]

I found it was a furnace problem, I needed to clean my flame sensor. If you just installed a new furnace it may be wise to have a HVAC service call 

[dw7]

Thanks. HVAC guy says it's not the furnace, but we never had this problem before (with our 40-year-old furnace!) Not sure how to proceed. . .

[Markjosephp]

Hi folks,

I wanted to stop by and see how I could help.

@Marco62, thanks for posting and letting us know how you were able to figure out that it was your furnace that had the problem. If there’s anything else I can help you with, please let me know.

@dw7, I'm sorry to hear you're also having the same issue. A few questions to isolate: what was your HVAC technician's diagnosis? Also, would you specify the steps you have taken so we can isolate it?

I'll look forward to your response.

Best regards,
Mark

[dw7]

No diagnosis; couldn't replicate the problem while he was there, and it hasn't happened since. . .

[Markjosephp]

Hi dw7,

I understand. At this moment, we couldn't tell specifically what caused the issue. However, the configuration of your thermostat was most likely triggered by a newly installed system. I did find a helpful article that might help.

Feel free to let us know if you have more questions in mind.

Best regards,

Mark

[Markjosephp]

Hi there,

It's me again. I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.

Best regards,

Mark

[Jhonleanmel]

Hi everyone,

Just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, I would be happy to keep it open. If there's more we can do, just let me know.

Thanks,
Mel