Google Nest Community

megeletto · 02-06-2025

My current system is using a wifi thermostat and I want to run a hard wire to connect to a Nest thermostat (3rd gen). Furnace + AC system.Furnace has these wire connections: C, R, W, W2, Y, GAC has these wire connections: C, Y,The current setup inclu...

megeletto · 02-08-2025

Hey John,Is this where the C & Y wires from the AC unit should go? https://freeimage.host/i/2b3JaUl

megeletto · 02-07-2025

There are two bundles of wires coming into the thermostat— one from the furnace and one from the AC. Both bundles have a “C” and a “Y”.

megeletto · 02-07-2025

These are the connections at the thermostat. Should those connections have been made at the air handler instead?I’m planning to run a new wire upstairs so I can bundle the C (and Y) wires to a single wire on the new run— that way the nest will have a...

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Two "C" and "Y" wires

Re: Two "C" and "Y" wires

Re: Two "C" and "Y" wires

Re: Two "C" and "Y" wires