If your Cielo Smart Thermostat Eco doesn’t turn on, please try these steps: 

1. Close your HVAC panel properly, as some systems may not work if the panel isn’t fully closed.

2. Check the backplate wire connections and ensure they are inserted properly into the terminals.

3. In the case of one R-Wire, make sure it is inserted into the RC terminal. 

• R or RC or RH > RC 

In case of more than one R-Wire, make sure RH is inserted into the RH terminal and RC or R is inserted into the RC terminal. 

4. If you installed the C-Wire Adapter, ensure all wires are connected to the correct terminals on your thermostat.

•  R or RC > RC
•  G > C 
•  Y/Y1 > CWA 

If you’re still facing any problems, please reach out to our support team at +1 425 529 5775, Mon-Fri ( 9 am – 9 pm ET ) or email at sale@smarthometc.com.