Google nest thermostat has no power. Error E298

[V18]

Thermostat not working error E298

[Markjosephp]

Hi V18,

Thank you for taking the time to let us know about your inquiry.

It appears to be a power-related issue, which is why it shows no power to the R terminal. I'd love to know more about this.

• Check its power readings in the Technical Info option.
• When did the issue occur?
• Make sure that the thermostat wires are properly stripped and seated in the thermostat base.
• If there's a common wire, try removing it and leaving it disconnected.
  • Turn off the power from your HVAC system at the breaker box before touching the wires.
• Restart the thermostat.
  • Get the power readings in the Technical Info settings.
• Check the air filter.
  • A clog in the air filter can limit how much air flows over the cooling coils. If the clog persists, the cooling coils can freeze and cause your system to shut off.
• Please share with us a photo of your thermostat's wiring.

I'll look forward to your response.

Regards,

Mark

[Dan_A]

Hey there,

I wanted to follow up and see if you still need help. Please let me know if you are still having any concerns or questions from here, as I would be happy to take a closer look and assist you further.

Best,

Dan

[Dan_A]

Hey there V18,

We haven't heard from you in a while so we'll be locking this thread if there is no update within 24 hours. If you need assistance or want to discuss topics, feel free to start a new thread.
 

Thanks,

Dan