Temperature Differences

[Jhy310]

Just got the updated Nest and have been having so much trouble getting it to heat! I am confused about the temperature which says 70 and the “inside temperature “ says 64. My house is cold. I never had this problem with the old one.

Any help would be appreciated.

Peggy

[kcruzgonzalez]

Hello @Jhy310,

Thank you for posting in the community. I understand you recently installed an updated Nest Thermostat and are having trouble getting your house to heat and that you've seen a temperature difference where the thermostat is set to 70 degrees, but the "inside temperature" displayed says 64 degrees. I am here to help you get your heating working correctly and consistently.

To properly diagnose this and understand why your thermostat is showing two different temperature readings, I need to gather some specific details about your device and setup:

• What specific Nest Thermostat model did you install?
• Where are you seeing the two different temperatures?
  • Is the 70 the target temperature and the 64 the actual room temperature shown on the thermostat's main screen?
  • Or is the 64 reading coming from a separate device, like a Nest Temperature Sensor, or a different spot in the Google Home app?
• When the thermostat is set to 70, what color is the ring or display?
  • Red/Orange: Indicates it is actively calling for heat.
  • Grey/Black: Indicates it is idle and not calling for heat.
• What type of heating system do you have? (e.g., forced air/furnace, boiler/radiators, heat pump, etc.)
• Did you experience any issues with the wiring during the installation of the new Nest Thermostat?

Once I know which model you have and where these temperatures are displayed, we can move forward with checking your wiring configuration and system settings to get your heat running.

Regards,

Kevin

[Finn80]

That's a common frustration with the updated Nest. The key is that the main display shows your target temperature (70°), while the "inside temperature" is what the sensor is actually reading (64°). This discrepancy often points to a placement issue. Is your thermostat on an interior wall away from drafts, direct sunlight, or heat sources like electronics? A cold exterior wall or a sunbeam from a window can trick the sensor. For homes with significant drafts from windows, improving insulation can help stabilize the ambient temperature. A solution like a window film from window tint can reduce cold spots near the thermostat, ensuring it reads the room's true temperature.