topic Re: nest thermostat kept heat on in Nest Thermostats

nest thermostat kept heat on

Jb6616 — Sun, 04 Jun 2023 14:13:12 GMT

Nest learning thermostat will not turn heat off. Its on farenheight, with new signal cable, new burner control unit. Was set to 62 (outside temp. 25 - 30 f). Had house up to 85 - 90 f.

Re: nest thermostat kept heat on

CoolingWizard — Sun, 04 Jun 2023 21:33:22 GMT

@Jb6616 , please post a picture of the Nest Backplate with the wires attached. You say a new thermostat cable was installed? Was it properly wired by the contractor? Did he not test the system before departing your home? This sounds like the thermostat cable is not wired correctly now.

AC Cooling Wizard

Re: nest thermostat kept heat on

Jb6616 — Mon, 05 Jun 2023 01:11:54 GMT

There are only two wires to the thermostat. When originally installed it kept the temperature at 62. After nine weeks the thermostat kept the heat on.

Re: nest thermostat kept heat on

CoolingWizard — Mon, 05 Jun 2023 01:39:30 GMT

You need to check both ends of the thermostat cable to ensure that the two wires are terminated on the same lettered terminal as the thermostat.

AC Cooling Wizard

Re: nest thermostat kept heat on

Jb6616 — Mon, 05 Jun 2023 11:42:09 GMT

Control unit on burner does not have identifying labels. i have tried switching wires (2)

Re: nest thermostat kept heat on

Jb6616 — Wed, 07 Jun 2023 13:46:43 GMT

Why would thermostat work fine for 9 weeks then not turn off call for heat after that?

Re: nest thermostat kept heat on

CoolingWizard — Wed, 07 Jun 2023 14:38:54 GMT

@Jb6616 , frankly I have no idea why it would behave in this way. Post a picture of the Furnace end of the thermostat cable.

AC Cooling Wizard

Re: nest thermostat kept heat on

Jenelyn_O — Tue, 13 Jun 2023 17:46:52 GMT

Hi there,

Thanks for reaching out. I'm sorry for the delay. Just to confirm, is your heating system will only stop when you turn off your thermostat mode and power? Please provide your thermostat power readout by going to settings and technical info.

I appreciate your help, @CoolingWizard.

Best,

Jenelyn

Re: nest thermostat kept heat on

EmersonB — Fri, 16 Jun 2023 17:55:32 GMT

Hi everyone,

@Jb6616, I'm dropping by to ensure that everything is covered here. How's it going with your Nest Thermostat? Were you able to read the information and check the link that Jenelyn has shared? In case you have an update, you know where to find us.

I appreciate the help, Jenelyn and CoolingWizard.

Regards,
Emerson

Re: nest thermostat kept heat on

EmersonB — Mon, 19 Jun 2023 14:46:32 GMT

Hey Jb6616,

Just one final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, we would be happy to keep it open. If there's more we can do, just let us know.

Thanks,
Emerson