The small triangle appearing next to the Wi-Fi icon indicates that your thermostat is connected to your Wi-Fi router, but there is no active internet connection available.

Reasons 

• Your router is working, but it’s not connected to the internet. 
• There may be a temporary issue with your internet service provider (ISP).
• There may be a proxy server or authentication server configured on your internet connection.
• Make sure there is no captive portal on your Wi-Fi router.

How to Fix It

• Check your internet connection on another device (like your phone or laptop) to confirm if the internet is working. 
• Restart your Wi-Fi router to refresh the internet connection.
• Change the Wi-Fi network of Cielo Smart Thermostat Eco.

Once the internet connection is restored, the triangle icon should disappear, and your Cielo Smart Thermostat Eco will resume full functionality.