Google Nest Community

jb76 · 12-16-2023

Hi - I recently replaced the thermostat control wire harness with my newly-replaced furnace. My furnace technician confirmed all wiring was correct and I now have power coming to my 3rd. generation Nest Learning Thermostat via the Common wire connect...

jb76 · 02-11-2024

Just an update on this and possibly a warning for other Nest Thermostat owners: my Nest thermostat stopped controlling my AC not because of any fault with my HVAC equipment but the Nest Thermostat baseplate malfunctioning. This is the not the first t...

jb76 · 01-27-2024

Hi - Sorry for the late reply - I went through the last 4 steps you provided and did not find any issues - no issues with the HVAC fuse, drip pan, air filter (replaced 1 month ago), nor the Nest wiring. I ran a test again today to see if the AC Compr...

jb76 · 12-23-2023

Hi - My HVaC is a Carrier SB820 forced air furnace and Carrier AC. I have not been able to configure my Equipment to setup ‘Cooling’ in the Settings menu due to the limitation that Nest will not try to turn on the AC if the outside temp is 60 F or lo...

jb76 · 12-21-2023

Hi - Setting the thermostat to ‘Cool’ mode did not turn on the AC compressor following the steps you provided and instead the furnace fan (unconditioned air) started to come through the vents. It is cool outside - averaging less than 65 degrees so I ...

jb76 · 12-21-2023

Hi - good to hear you and the HVAC tech. were able to identify the correct wiring to control your system. Typically this is done at the time a new/existing system is setup by a tech. that knows what your HVAC system consists of and type. J

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Unable to turn on air conditioning/compressor

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Re: Google thermostat (6 wires). Need help.