topic Re: Heating takes forever! in Nest Thermostats

Heating takes forever!

Spudrick — Fri, 10 Dec 2021 14:43:18 GMT

I installed the 3rd gen Learning Thermostat a few days ago and it's been a disaster.

I set it to eco mode overnight (52F) but programmed it to 68F at 7 AM when I get up. I got up in a freezing house and the thermostat was in the eco mode still after 7 AM. I though it was a glitch so set it to 65F at 5 PM to make sure it has enough time to heat up the place before 6 PM when I get home. Nope. 52F. At 6 PM I set it manually to 68F, it says 2+ hours to reach that temp. 5 hours later at 11 PM it was only 63F.

Is this how Nest saves energy? I bet this is a very efficient way! I never had such issues with my old Honeywell so I called Nest support and they tell me I need the C wire. I have a two-wire gas system (no AC) and I know that C wire is required for the regular Nest as it displays an error, but the learning one does not show any issues.

I see a bunch of videos about how well the Learning Thermostat works with a two-wire system. Which one is true?

Re: Heating takes forever!

SanNGA — Mon, 13 Dec 2021 10:48:00 GMT

I have had my two nest units for over a year and they have worked fine however now I am having the exact same issue with both not heating at night. It seems that the firmware/software upgrade to 6.2.22 may be the issue. I have tried everything to fix it. It is not a hardware issue as I have had the maintenance guy out to check both units and when he puts the old thermostats back on they work fine but when they switch back to the nest I am having this issue with not heating at night. It never seems to reach the temp it is set for. I have them set for 70° and although the thermostat stays orange as if it’s heating the temperature slowly drops and it says 2+ hours to reach 70°. And just continue drop during the night.

Re: Heating takes forever!

SanNGA — Wed, 15 Dec 2021 14:51:25 GMT

Was this ever resolved? I am having the same issue…

Re: Heating takes forever!

Spudrick — Wed, 15 Dec 2021 15:10:04 GMT

No. I haven't looked for any other community, but this one obviously is not very active.

Google doesn't seem to care/know.

Re: Heating takes forever!

SanNGA — Fri, 17 Dec 2021 00:51:31 GMT

Thanks for the update. I’m checking other community posts and several very similar none of which have any real solutions.

Re: Heating takes forever!

Apbrenner — Sun, 20 Feb 2022 20:29:19 GMT

same issue.. have posted this into my chat with Nest Support and asked for an escalation.. not very optimistic

Re: Heating takes forever!

Hwomack911 — Mon, 05 Dec 2022 14:36:04 GMT

Any resolution? Mine does the same… and we are freezing 🥶