My Nest thermostat will not start the heater or air conditioning by temperature

[stevenzmarsden]

I can start both the heater and the air conditioner manually with my nest thermostat, but it is not starting them based on temperature. For example, if I set the heat to turn on at 68 degrees, even when the house temperature goes below 68 it won't start the heater.  The same with the air conditioning. However, when I run the heating or AC unit manually from the thermostat, they will turn on.

[AJT]

No answer, but I’m having the same issue this week. Nest set to 68, but it’s 65 in the house and not turning on the furnace.

[Bgreene007]

Yep..same issue here

[Knockkneed]

I'm having the same issue.  I reset mine to factory settings and it worked fine for two days and now I'm experiencing the issue again.

[ThermostatSucks]

Same problem here, and it's been very frustrating. Also, both myself and my cats are developing upper respiratory colds from the cold & dampness now in my home 

[CLFD]

If I understood right - resetting the thermostat didn’t work for you. Do you have another Fix?

[Bgreene007]

I started experiencing the same issue on Nov 2nd after an automatic update was done. I have several nest thermostats in my house and when I swapped them the issue followed the controller so I know it's not the compressor or hvac. Has to be the controller and from the looks of this thread it's a bug from the update. Other 2 nest thermostats didn't update on Nov 2nd. Google please help!!

[Crewfox]

Having the same issue - any fixes reported by @User123456 ?

[Elswann]

Issues continue. I've noticed my system will run for exactly five mins. then turns off. 6-2.22 is the issue and I'm ticked off. 

We had some warm days for the past week, so I didn't have to run it. Cold weather is back...getting off nest this week unless they push an update. 

[stevenzmarsden · Accepted solution]

So, I finally got some help from Google. The fix seems to be to do a full factory reset of the thermostat. Obviously you’ll lose your programmed temperatures. 

[Srsplato]

Same issue, why doesn’t Google respond?

[Bgreene007]

I did speak with them on the phone when this happened. They were very helpful. The issue is I can't remember how they helped me fix it. I would try calling them. Sorry I'm not more help.

[Bgreene007]

Reply above was how they helped. I also did a full factory reset on the thermostat. 

[Alextara]

I had the same problem - Nest (Model: Snow GA01334-US ) says HEATING,  but it is not starting the fan. My solution :

- Go Thermostat  -> Settings -> Thermostat -> Equipment ( Heat configuration )  -> Fan activation

- Set "Activate"  (because default is  "don't  activate" that prevent turning a fan on automatically)

P.S.  This option was available in the initial set up but switches to default for some reason.

[Sarah357]

How do I call them? I don't have a number?

[George9919]

Good question. I have searched for a Google technical support or customer support number but without success.

[rxb3]

Can someone please provide the phone number, thank you