topic Re: Nest thermostat 4 gen auto eco and pre-cooling in Nest Thermostats

Nest thermostat 4 gen auto eco and pre-cooling

jolugo — Fri, 30 May 2025 03:00:32 GMT

I upgraded my Gen 1 thermostat to a Gen 4. I like to pre-cool my home to take advantage of the Time of use plan that the utility has and I turn it up all the way between 3-6p so the AC doesn't turn on at all.

I also use the Auto Eco feature when away to also save money.

Here is the issue. If the thermostat is pre-cooling the house and I leave at that time, it goes into Auto Eco and then the AC turns on between 3-6pm. Although its using the eco temperatures, it still runs several times during the "rush hour".

Im trying to find a way, to still use auto eco (when away) but keep the schedule for pre-cooling. In other words, to ignore that someone is leaving during that time.

Any suggestions?

Thanks.

Re: Nest thermostat 4 gen auto eco and pre-cooling

GabrielaG — Sun, 01 Jun 2025 22:52:20 GMT

Hi @jolugo,

Thanks for reaching out to the Google Nest community. I'm sorry to hear that your Nest Learning Thermostat 4th gen is not working as expected with the Auto-Eco mode and is running during Rush Hours. No need to worry; I'm happy to assist you.

To help provide you with the correct information, I would like to ask you a few questions:

When did you install the Nest Learning Thermostat 4th gen?
What type of HVAC system do you have?
Is this the first time you’re calling for cooling this year?
Do you see a power error code on your thermostat?

Any additional details you can provide will be helpful.

Best regards,

Gabriela

Re: Nest thermostat 4 gen auto eco and pre-cooling

jolugo — Tue, 03 Jun 2025 19:44:56 GMT

I installed it about a month or so ago.

I have a heat pump split system

No, it's been on cooling for about two months

No error codes. The system cools properly.

Thank you.

Re: Nest thermostat 4 gen auto eco and pre-cooling

GabrielaG — Wed, 04 Jun 2025 00:30:44 GMT

Hi @jolugo,

Thank you for your reply. I appreciate the information you provided me about your Nest Learning Thermostat (4th gen). I'm happy to continue assisting you.

I would like to know more information about the wiring in your Nest Learning Thermostat (4th gen). Can you please send me a picture showing the connection of your wires?

Also, you can try to reset the schedules in the Google Home app and create a new schedule.

Any additional details you can provide will be helpful.

Best regards,

Gabriela

Re: Nest thermostat 4 gen auto eco and pre-cooling

jolugo — Tue, 10 Jun 2025 21:36:56 GMT

Hi, I don't know what the wiring has to do with the away feature but I have Y1, G, OB and RH connected.