On the thermostat go to settings technical info power. Big problems with the battery.

Nest Learning Thermostat 1st Generation T100577
Nest thermostat not charging. Check on the nest itself under settingstechnical infopower. Your nest thermostat should automatically turn on once its connected to your system and your system is powered up. Press the nest ring again to turn back on the device and release. The nest appears only to charge when the ac system is running robbing a small amount to charge itself. If you see a blinking red light at the top of your nest thermostats display. Then it began to struggle with recharging had network dropouts disconnects and began to insert delay times apparently randomly and.
Wiring issues usually occur when youre first installing a nest thermostat. If the voltage is above 36 youre good. If youre installing a new nest thermostat incorrect wiring can prevent it from charging. To solve this issue you must check the following. Double check whether the nest display is ideally placed to the based check whether the system gets enough power make sure the system is compatible check the thermostats wiring find whether the fuse in the system blown out look whether the. The battery voltage should be the first number you see.
However they can crop up later as well but usually for different reasons. Disconnect the nest from the usb cable and hold down the nest ring for about 10 seconds or until the display goes black. It will deplete if the system is off for too long. My nest generation 1 had been working flawlessly for several months both summer and winter heating and cooling until about january 23rd 2013 or so. Nest thermostat battery charging problem and solution. If the voltage is low there may be a.
Double check that you have inserted the right wires into the right connectors. If you own a nest smart thermostat you may be experiencing problems with the battery. Never try to restart the nest while its connected to a computer or power source while charging. As in the battery keeps draining and leaving you in the literal freezing cold. You should now see the nest animation as it starts back up.