The Smart Home Starter team picks the products and services we write about. When you buy through our links, we may get a commission.

Amazon Smart Thermostat Won’t Turn On – Troubleshooting Tips

Last Updated Apr 29, 2022

The Amazon Smart Thermostat is known for being quite user-friendly. From installation to use and everything in between, Amazon claims that you can fix almost every issue you are facing all by yourself! So if your Amazon Smart Thermostat won’t turn on, here are a few troubleshooting tips you can try to get it up and running right now!

If your Amazon Smart Thermostat won’t turn on, you can:

Make sure the screen display is on and the brightness is turned up.
Verify the main power of the HVAC system is turned on on the circuit breaker.
Check that the wires are properly connected.
Restart the Amazon Smart Thermostat.

Now, if you want to learn to successfully attempt each of these solutions, keep reading! We are going to go through the step-by-step directions so that you can get your system turned on and running smoothly in no time.

Amazon Thermostat Won’t Turn On

One of the most frustrating problems when dealing with a technological device is when it simply won’t turn on. Luckily, there are a few easy tactics you can do yourself to get your Amazon Thermostat turning back on in the next few minutes.

Here’s what you can try:

Make sure the screen display is on and the brightness is turned up.
Verify the main power of the HVAC system is turned on on the circuit breaker.
Check that the wires are properly connected.
Restart the Amazon Smart Thermostat.

Ready to get started? Here are the step-by-step instructions for each solution.

Make Sure the Screen Display is On

This is a fairly common problem that is incredibly easy to fix: your Smart Thermostat may actually be on, but the screen display is sleeping! In order to check if this is the problem, you can simply touch the display screen, if it powers on, your problem is fixed! If not, it may be that your screen brightness is actually too low to see it.

To increase the screen brightness, open the Alexa app on your smartphone, navigate to the Smart Thermostat device settings, and you will be shown an option to increase or decrease the brightness.

Verify the Main Power of the HVAC is Turned On

Verifying the main power is turned on is another straightforward solution to try as it requires very little work and may just solve your problem!

If you installed the Amazon Smart Thermostat yourself, then you will know where the HVAC main switch is on your circuit breaker. If it was installed by a technician, you may need to do a little investigating but it should be labeled.

Once you found it, try turning it off and on again and see if your Smart Thermostat turns on!

Check the Wires are Connected Properly

While this solution is slightly more complicated than the others, the problem could very well be that the wires aren’t connected properly.

Again, if you installed the Amazon Smart Thermostat yourself than you already know how the wires work, but even if you didn’t or if you have forgotten, the wiring instructions are located on the Alexa app under the Amazon Smart Thermostat device.

To check if the wires are properly connected, first, ensure that the main power is turned off on the circuit breaker, then follow the directions listed below:

Remove the faceplate of the thermostat from the wall.
Make sure the wiring matches the instructions on the Alexa app.
Make sure each wire is properly connected by removing and reconnecting each wire.
Ensure that the C Wire is connected to the HVAC system via the 24 V Common port.

That should be it! If it was a wiring problem, your Amazon Smart Thermostat should now be on and working flawlessly! If not, there is one more solution to try.

Restart the Amazon Smart Thermostat

The classic, and almost always successful, troubleshooting solution of turning the device off and on again is the final tip in our list!

To restart the Amazon Smart Thermostat, simply remove the faceplate for 30 seconds and then place it back on again to turn it back on. That’s all there is to it!

Final Thoughts

Hopefully, your Amazon Smart Thermostat is now on! These troubleshooting tips solve the most common problems you may be facing, but if it still isn’t working, you will unfortunately need to reach out to Amazon support for help.