Funny I recently UPGRADED my Nest V3 BACK to Ecobee V1.
OP you should have a common maker close to the furnace terminals. The device you see in your tstat that is connecting Y and R is known as diode.
Ecobee V1 is the best Tstat atleast IMHO. Coloured screen, FAN can be left ON permanently, 7 days weather forecast, Outside temp on same home screen.
https://mythermostatreviews.com/ecobee3 ... -kit-work/
OP you should have a common maker close to the furnace terminals. The device you see in your tstat that is connecting Y and R is known as diode.
Ecobee V1 is the best Tstat atleast IMHO. Coloured screen, FAN can be left ON permanently, 7 days weather forecast, Outside temp on same home screen.
https://mythermostatreviews.com/ecobee3 ... -kit-work/
Certified HVAC Pro. Committed to Customer, not brand. Past RFD Review
2024 AC, Furnace, Heat Pump and Water Heater Groupbuy
2024 AC, Furnace, Heat Pump and Water Heater Groupbuy