topic Re: Nest Learning 4th Gen Compatibility in Nest Thermostats

Nest Learning 4th Gen Compatibility

mhawkel — Sun, 16 Feb 2025 04:55:50 GMT

Posting current wiring to check if nest 4th gen learning thermostat is compatible with current wiring. We just moved into a new home and compatibility checker suggested posting for feedback

Re: Nest Learning 4th Gen Compatibility

sicsacol — Wed, 19 Feb 2025 21:28:41 GMT

Hi @mhawkel,

Thanks for reaching out. I understand that you're looking for help to see if your current system is compatible with Nest thermostat 4th gen. Don't worry, I'm here to help you with the answer.

After reviewing your wiring system, your thermostat has the necessary wires (W, Y, R, B, G) to be compatible with a Nest Thermostat (4th generation). To better assist you, please let me know if you have a conventional or heat pump system. A heat pump system typically uses a single unit for both cooling and heating, while a conventional system has separate units for air conditioning and heating.

Please let me know the answers to these questions, and I'll be happy to help you further.

Cheers,
Jonathan

Re: Nest Learning 4th Gen Compatibility

mhawkel — Sun, 23 Feb 2025 16:30:14 GMT

@sicsacol Thank you for your reply. I have a single unit heat pump system

Re: Nest Learning 4th Gen Compatibility

sicsacol — Sun, 23 Feb 2025 20:10:11 GMT

Hi @mhawkel,

Thanks for your reply.

In this case, to install your 4th generation Nest thermostat, a C wire is necessary in your wiring system. The C wire provides power to the thermostat. Please contact a local technician for installation, ensuring they include the C wire. With the C wire, you will be able to install your 4th generation Nest thermostat. To learn more about the C wired, please check out the following article: Learn about the common or C wire.

Please let me know if you have any questions from here, as I'd be happy to take a closer look and assist you further.

Cheers,
Jonathan