Incorrect room temperature

[Pentagon2001]

My Nest thermostat says my room is 76 but two other thermometers within 2ft of the Nest show it’s 70. These are both new thermostats and newly installed. 

[Pentagon2001]

I even moved a room sensor next to the Nest and it shows 71. 

[HVAC]

Sounds like defective sensor idk if nest has set back or calibration setting I would set couple degrees up or down to find comfortable spot not necessarily a number  

[zoeuvre]

Hi folks,

@Pentagon2001, thanks for reaching out to us, and I'm sorry to hear about the situation. Let's sort this out.  

What type of Nest Thermostat do you have? It will help us identify what steps you should follow to fix this case.

I'll look forward to your response. 

I appreciate your help, @HVAC. 

Best,

Zoe

[Pentagon2001]

My model is “Display-3.7” so I assume 3rd Gen Learning. 

[zoeuvre]

Hi there, 

Thanks for the information. Kindly check on your thermostat under Settings > Technical Info > Network, then check for its Signal strength value.

Regards,

Zoe

[Pentagon2001]

The signal strength is 79

[zoeuvre]

Hi Pentagon2001, 

Thanks for the follow-up information. The 79 Signal Strenght value for Nest Learning Thermostats is already considered strong. With that, please follow these steps: 

1. Restart the thermostat. 
   • On the thermostat’s display, go to Settings ResetRestart. The thermostat takes a few moments to restart and boot back up.
2. Turn on Sunblock. 
   1. On the thermostat display, go to Settings Nest SenseSunblock.
   2. Select Yes to make sure Sunblock is on.
3. Check if the thermostat is near a heat source. 
   • Nest thermostats in the U.S. and Canada are typically on a wall. Check if the thermostat is near:
     • Air vents that direct warm air
     • Appliances (that includes large televisions)
     • Electrical outlets
     • Plumbing (hot water pipes in old buildings are frequently not insulated)
     • Warm air in the wall
     • Other potential heat sources 
       • If there's no any heat source near the thermostat, please proceed to the next step.
4. Cover the wall with a duct seal compound.
   • Customers usually can’t tell the difference in temperature unless it’s significant. If the customer’s thermostat is on a wall, do the following steps:
     • There’s a high possibility that there’s a heat source behind the wall detected by the thermostat causing incorrect temperature readouts.
     • Apply a duct seal compound on the location where the thermostat is installed to close the penetration on the wall and serve as an insulator. Sometimes, the installation of the thermostat steel plate or trim kit can help solve the issue if they have one.
       
       • Note: Make sure to turn off their Heating Ventilation and Air Conditioning (HVAC) system’s power at the breaker box before they remove and reinstall their thermostat.
     • If the situation persist, proceed to the next step.
5. Check the thermostat’s network connection.
   • Some wireless access points can cause the Nest thermostat’s Wi-Fi chip to overheat, which affects the ambient temperature readouts.
     • Make sure the thermostat is online.
     • Refer to Wi-Fi routers that are incompatible with Nest products and Recommended Wi-Fi router settings for Nest products to check if the router and network settings work with the Nest thermostat.
     • Disconnect the thermostat from the Wi-Fi network for 24 hours to monitor the ambient temperature, and give us a follow-up afterward. To disconnect the thermostat from the network, select Settings ResetAccount Connection.

Let us know how that works.

Best,

Zoe