Hey Mrneilh,
Sorry to hear about what's going on with your thermostat. I want to take a closer look at it.
Quick question — what type of Nest thermostat is this? Also, are there any recent changes made on your HVAC system or on the actual thermostat before this started happening?
If you have a Nest Learning Thermostat or a Nest Thermostat E, a blinking red light at the top of your thermostat’s display means that the battery charge is very low but it’s being charged. I suggest to wait until the battery is charged before you use it to control your heating or cooling. You may also speed up the charging by following the steps below:
- Pull off the thermostat display and use the USB port on the back to charge it with a USB cable and wall charger. Depending on the model you have, it'll be either mini or micro USB.
Note: Do not use a computer USB port or other unpowered USB port for charging.
- The display should eventually light up with a message asking you to connect it to the base.
- Reconnect the display to the thermostat base. Press firmly until you hear it click into place.
Keep me posted.
Best,
Melba
