Google Nest Learning Thermostat 3rd Generation, Black - Smart Thermostat - A Brighter Way To Save Energy

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If there’s a power issue, your thermostat’s battery will drain and it'll turn off Wi-Fi, the display, and other features to preserve battery life. Before you begin If you’ve successfully installed your Nest thermostat, but a blinking red light appears after you’ve been using it regularly for some time, there may be a problem with the thermostat wiring or another power issue. For instance, the blinking red light may show up then go away on itsown repeatedly. But for Nest Thermostat E and Nest Learning Thermostat, the batteries are built-in, and they charge automatically via your HVAC system. But for some reason, your Nest thermostat might fail to charge automatically, and this may keep the thermostat screen blank. So, you’ll have to charge the thermostat with a USB cable. Turn off power to your system at the breaker box or system switch. This will help protect your system and your thermostat from possible damage.

thermostat won’t turn on - Google Nest Troubleshoot when your thermostat won’t turn on - Google Nest

In rare cases, a Nest thermostat can be damaged by issues such as a power surge from your system, connecting it to an incompatible system, or by touching exposed wires together if power to the system hasn’t been turned off during installation.Once you’ve set up your thermostat and connected it to the Nest app, follow the link below to learn about how to use your Nest thermostat.

Nest Learning Thermostat 3rd Gen - Black - Smart Google Nest Learning Thermostat 3rd Gen - Black - Smart

If your Nest thermostat screen fails to turn on when you just finished setting it up, you may not have connected your thermostat wires correctly. Your Nest thermostat wires need to be properly inserted into the base connectors for the device to function effectively.Note:If you still have it, use the picture of the wires in your old thermostat that you were instructed to take during thermostat installation.