Not heating to desired temperature

[CC13]

Why is my boiler and heating not on when I've set the desired temp to 20 and the room is at 18.5?

[Markjosephp]

Hello CC13,

Thank you for taking the time to let us know about your inquiry. I'd be happy to take a look at this for you.

To isolate:

• Is the Nest Thermostat newly installed?
• Does the thermostat screen indicate that it’s actively calling for heating?
• What type of furnace do you have? (gas, electric, etc.)
• Did you turn off the power to the HVAC system?
  • Did you recently turn off any breakers?
  • Have you recently experienced a brownout or blackout?
  • Is there a light switch near the heater that controls an outlet?
• Could you please share with us a photo of your thermostat's wiring?
• When was the last time you changed the furnace's air filter?
  • Note: A clogged air filter can cause an HVAC system to not activate.
• Please gather the power readouts on your thermostat's "Technical Info" settings for the Nest Learning Thermostat or Nest Thermostat E and "Equipment" settings for the Nest Thermostat 2020.

I'll look forward to your response.

Regards,

Mark

[Markjosephp]

Hi there,

I'm checking back in — how's it going? I hope you've seen my response above for the needed information. Please let me know so we can move forward.

Thanks,

Mark

[Markjosephp]

Hi CC13,

I'm checking in to make sure that you've seen my response. Please let us know if you have any additional questions or concerns before I lock this thread in 24 hours. 

Regards,

Mark