Although the technology is at its peak nowadays, no tech gadget is perfect and safe from occasional errors. It’s the same with Nest thermostat. If your Nest thermostat is not working or turning on, we have a comprehensive guide for you with easy troubleshooting methods. Let’s start!
What to Do When Your Nest Thermostat Won’t Turn On?
If your Nest Thermostat won’t turning on responding, there are several potential causes and solutions to try out. Here we have listed them for your observation.
If your Nest Thermostat Blinking Lights
Red Blinking Light
Blinking red light on a Nest thermostat indicates that the Nest’s battery is running low. The fix for this issue is straightforward. You should be able to fix this after you charge the battery and it should turn on automatically.
In addition, you can speed up the process by disconnecting the Nest thermostat display and plugging it into a USB port using the cable that came with it. Once the battery is sufficiently charged, reconnect the display by pressing it firmly onto the base. You should hear a clicking sound when you press it firmly onto the base.
Green Blinking Light
A green blinking light on a Nest thermostat says that your device is updating its software and is something that you don’t need to worry.
The updating process of a Nest thermostat usually takes no more than 1-2 minutes. If you notice it takes time more than that, check whether the display is correctly connected to the base. In some cases, you may need to manually restart the Nest thermostat by holding down the display for 10 seconds and then releasing it. It’s not a difficult task, right?
If your Nest Thermostat Has No Blinking Lights
If there are no blinking lights and the Nest won’t turn on, this typically means the battery of your device is completely drained.
If this is the case, it says that your battery has no power to turn on and run the device as it should be. Then, you should first try to ensure the display is properly connected to the base so the battery can recharge.
In order to perform this action, you should remove the display, check for any obstructions, and press it back onto the base until you hear a click, as we mentioned earlier.
If a red light starts blinking, the battery is charging. Now, all you have to do is wait a few minutes until the Nest thermostat has enough power to turn back on.
Have a look at this video as well.
Verify the Power Supply to the Nest Thermostat
If your Nest thermostat doesn’t get power, there is no chance for the device to work, right? So, it’s your duty to check the circuit breaker and the fuse box first. By doing this, you can ensure the required power to the Nest thermostat is being provided.
Additionally, confirm that your HVAC system is providing power to the thermostat. The easiest way to check this is by using a multimeter.
Wiring Connection Problems
Similar to all other electronics, loose wiring connections can cause your Nest thermostat to stop working. Although fixing this sounds straightforward, this step must be performed cautiously.
So, first, turn off the power to your system before inspecting the condition of wiring.
Then, remove the thermostat from the base and ensure all wires are securely connected to the appropriate terminals. Once you realize everything is in correct order, turn it on and see whether it fixes the issue.
Restart the Thermostat
Manually restarting your thermostat can resolve many issues. So, let’s give it a try. In order to restart your Nest thermostat, press and hold the display for about 10 seconds, then release it. If your device suffers from a software glitch, doing so will fix temporary bugs and turn on your Nest thermostat.
Address Software Issues
Ensure your Nest thermostat is running the latest firmware, as we have experienced before that outdated firmware causes performance issues. To update the firmware of your Nest thermostat, you can use the Nest app.
Simply connect the thermostat to Wi-Fi and follow the prompts in the Nest app to install any of the newest available updates.
If you’ve tried all the above steps and your Nest thermostat still won’t turn on, it may be time to contact a professional. Persistent issues might indicate a more serious problem that requires expert diagnosis and repair.
Adam Voges is a seasoned expert with 11 years of experience in the heating and cooling industry. His deep understanding of HVAC systems and cutting-edge home climate technologies makes him a trusted authority on maintaining comfortable and energy-efficient homes. Adam’s blog discusses the latest innovations, best practices, and troubleshooting tips for heating and cooling devices, helping homeowners make informed decisions about their indoor climate control. Whether you’re looking to upgrade your system, optimize energy usage, or solve common HVAC issues, Adam’s insights are invaluable. His passion for sustainable living and his commitment to enhancing home comfort shine through in every article he writes.
