Nest Thermostats keep overheating

[Lpie]

I have seven heating zones in my house. My two main Nest thermostats (the ones that also control the upstairs/downstairs ac) are routinely overheating my rooms. We set the temp to 66 and it still cranks up the heat until we’re baking at 80 degrees. I’ve had to hit my house’s heating ‘kill-switch’ every day, just to stop the heat going up more. I’m beginning to hate these thermostats- they’re so glitchy. I’ve tried resetting and letting the units completely power down. Nothing works. 

[Dan82]

Hi, I've got the same issue. I've had my Nest for 5 years and it's worked without problem. A week ago it over heated the house, I tried to kill the heat at the nest....but it kept going, I tuned the boiler off. Did some research, turned of time to heat, farsight and reset the schedule......it's worked ok for a week and this morning it's over heated the house again. Did you find a solution? I've noticed the software's been recently updated and wondered whether this maybe the cause?

[SteveLeBel]

I have the same problem.  Nest uses my temperature settings to trigger a heating event.  But the heating pushes the temperature 6-7 degrees above the setting.  It then waits about 1.5-2 hours while the temperature slowly goes back down before triggering another overheating event.  Is there something I can do to fix this?

[GCarman]

Same thing here! Let me know!!

[NiceNCozy]

My thermostat "goes rogue" and keeps heating even after it hits the set temperature. I have the heating set to 68 and I've caught the thermostat going to 74,75 and even 77 degrees. The thermostat isn't frozen but the air handler does not respond to any of the commands I give to it (for example: off). The system will only shut down if I pull the Nest off the wall and then put it back on again. I'm worried that this will happen when we aren't home and will cause a fire.

I did notice that the wires for the thermostat were a bit tarnished so I polished them with a magic eraser to get rid of the oxidized layer. I also reset the thermostat. Hopefully, it'll make a difference.

[NiceNCozy]

It’s been two days since I cleaned the wires and restarted the Nest and I haven’t had any rogue events since.

I also noticed that I didn’t have any temperatures set on my schedule, so I made sure to add some. 

[shellb94]

Has anyone found a solution? Because the same thing is happening to me and I’m at the point where I’m just going buy a basic thermostat and trashing this Nest. The convenience of setting my thermostat from my stone is not outweighing the possibility of my trailer catching on fire while I’m at work.