Google Nest Community

Lproff · 02-16-2023

I just installed Nest 3rd generation learning thermostat on 4 wire system, and it fails heat and blower tests. The original thermostat was wired W, Rh (jumper to Rc), G, and Y. See photo. I followed Nest app instructions and connected Y1, W1, G, &...

Lproff · 02-19-2023

Thank you. I did as suggested and re-connected the wires. The system test did not turn the heat or blower on. I decided to just skip the tests and see what happened. The thermostat is working and the house is heating. Not sure why the system test did...

Lproff · 02-16-2023

Me too

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Nest 3rd generation learning thermostat on 4 wire system fails heat and blower tests.

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