Google Nest Community

diskman50 · 07-25-2023

My condo uses a heat pump system for both single stage heating and cooling. My current thermostat (ClimateMaster) has a low and high-speed fan option and uses both G and G2 wires. The online compatibility checker fails when I select the G2 wire but I...

diskman50 · 08-27-2023

There were some settings that were different from the Nest regarding a Heat Pump reversing valve. Other than that, it was straight forward. There are YouTube videos that walk you through it. Joe

diskman50 · 08-27-2023

I've discovered that if you have a heat pump, a wire in 0/B, you cannot map G2 to Y2 to get dual fan speed. The solution for me was to return the Nest and install a ecoBee Smart Thermostat Premium which supports the G2 to Y2 mapping with a heat pump....

diskman50 · 08-08-2023

Hello Mark, Thanks for following up on this issue. There has been no progress to date and it seems a little excessive paying for a Pro installation for a thermostat that is already installed and up and running except for the G2 wire (high fan speed) ...

diskman50 · 07-29-2023

I need to know if other Nest customers have successfully installed a Learning Thermostat using the G2 (Fan) wire. I know that some users have mapped the G2 to Y2 as a workaround. However, if this is an impossible configuration, even for a Pro Install...

diskman50 · 07-29-2023

Anyone? No ideas or solutions from the community?

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Nest Learning Thermostat 2 Fan Speed Wiring

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Re: Nest Learning Thermostat 2 Fan Speed Wiring