Wyze Thermostat Clicking [3 Reasons You Have to Know!]

It can be so frustrating when your thermostat starts making strange noises, especially clicking sounds.

Wyze thermostats have become increasingly popular in recent years due to their affordability and convenience. Unfortunately, a common issue with Wyze thermostats is it makes a clicking noise and doesn’t turn on.

So, what should you do when you find your wyze thermostat clicking

Firstly, you have to connect all the necessary wires to the Wyze thermostats properly. Secondly, update the firmware through the Wyze app and update the Wyze application via the app stores. Finally, test out the power input for the thermostat, reset the circuit breaker and replace blown fuses. 

This bit of information won’t be enough for you. Stay tuned till the end to know all the necessary information!

3 Reasons and Solutions behind a Clicking Wyze Thermostat

There are a few reasons why the Wyze thermostat is faced with a clicking noise. Acknowledging these reasons before the solution will help you greatly.

wyze thermostat clicking noise
Source: techgearlab.com

Here are the reasons and solutions for clicking Wyze thermostat-

Reason 1: Incorrect Wiring

This is the most common reason behind a dead and clicking Wyze thermostat. It can also cause the Wyze thermostat not to turn on. Generally, thermostats use AAA batteries as the power source. 

But the Wyze thermostat uses a built-in wire called the “C” wire. This wire extracts the power from the main electric line of a house.

Yet, many new Wyze users aren’t aware of this they incorrectly wire the thermostat. Incorrect wiring can lead to problems like thermostat clicking, thermostat intermittently losing power, noisy thermostats, etc.


For resolving this issue, you have to wire the Wyze thermostat correctly. Follow the step-by-step guideline below-

  • First, turn off the power of the Wyze thermostat. Screw the cover off to get access to the wire terminal and control board.
  • Next, using a screwdriver or a lever, pull out the wires from the terminals. If you see any jumper wires, remove them as well.
  • Then, start connecting the wires. Connect the Y, R, G, and W wires to their designated terminals and screw them in. Leave the “C” terminal for later.
  • After that, find the blue wire from the control board. Connect the blue wire to the C terminal of the Wyze thermostat.
Incorrect Wiring
Source: forums.wyze.com
  • Finally, screw the blue wire in and close the Wyze thermostat cover. Now, the Wyze logo should appear on the screen and you’re ready to set up the thermostat.

Reason 2: Thermostat Glitches

Wyze thermostat is a smart thermostat. In fact, it’s one of the top thermostats under 100$. This means that regularly it needs software updates to maintain and upgrade functionality. 

However, the software updates may contain some bugs, for which the Wyze thermostat may start the clicking noise. Additionally, you might inspect the screen not turning on.


To solve this problem, first, you need to make sure you have the latest update on the Wyze thermostat. To do that-

  • Firstly, launch the Wyze app on the device you set up the Wyze thermostat with.
  • Secondly, go to the ‘Settings’ section of the app.
  • Thirdly, go to ‘Device Info’.
  • Finally, tap on ‘Firmware Version’. This will show you the firmware version.
Firmware Version

If your Wyze app’s not updated to the latest firmware version, it will prompt an update automatically. If there are no prompts, the firmware is updated.

latest firmware version
Source: support.wyze.com

However, to update the app itself, you’ll need to check the google play store/app store. Then you have to manually install the updates.

If the app and the firmware are up to date, perform a factory reset on the Wyze thermostat. To factory reset the thermostat, locate the control wheel. Then, press and hold that wheel for at least 10 seconds.

After factory resetting the thermostat, you have to set it up again using the Wyze app.

Wyze app
Source: wyze.com

Reason 3: Inadequate Power to Thermostat

If your Wyze thermostat is clicking and not turning on, it may not be getting adequate power. When thermostats do not get enough power, these devices tend to malfunction. But don’t stress though, you can solve this issue!


To provide adequate power to your Wyze thermostat, you need to-

  • First, check the power reading on the thermostat. Take the thermostat’s cover off, and test the wires by using a multimeter.

    Most thermostats operate at 24 volts. If your thermostat’s getting 15 volts or lower than 24 volts, it’s having power issues.
  • Then, make sure you have the ‘C’ wire connected properly (from the 1st solution). Wyze thermostats don’t need batteries like traditional thermostats. The ‘C’ wire provides power to it.
  • Next, check the circuit breaker and fuse of the Wyze thermostat. If the circuit breaker has tripped, reset it.

    Also, if the fuse is blown on the thermostat, replace the fuse with a new one. Doing so will restore adequate power flow to the thermostat.

These are the 3 solutions you can rely on to fix the clicking issue of the Wyze thermostat! Always try to maintain your thermostat to avoid problems like these in the future.

Troubleshooting Wyze Thermostat Not Turning on

The solutions above are enough for fixing the clicking noise and turning on the Wyze thermostat. However, if your Wyze thermostat is still not turning on, there might be some external issues. 

Here are some things you can try to get the Wyze thermostat back on.

Check the HVAC Control Fuse:

The HVAC control fuse is responsible for maintaining the electric flow inside the HVAC system. Check the HVAC control fuse to see if it’s blown or not.

If the fuse is blown, shut down the AC and turn the power off from the breaker. Then, replace the fuse. Make sure to match the fuses with the unit. Different colored fuses indicate different ratings.

HVAC Control Fuse
Source: mashtips.com

Check the HVAC Float Switch:

The float switch prevents water overflow on the HVAC unit. Any overflow will trigger the float switch and it will shut down the HVAC system. If you find your float switch filled up with a moderate amount of water, don’t worry.

You will just have to unclog the drainpipe of your AC. Remove the float switch and then you can get started with cleaning the drainpipe. You can get help from this video right here-

After cleaning the drainpipe, remember to put the float switch back.

Check the HVAC Contactor Relay:

With time, the effectiveness of the contactor relay of the HVAC unit deteriorates. It may cause sparks and other mishaps, along with blowing out the control fuse.

Check the HVAC contactor relay and if it’s faulty, replace it. You have to replace the contactor relay and the fuse together. 

Frequently Asked Questions (FAQs):

Why is my thermostat not firing?

Thermostats don’t fire when they’re not working. To get your thermostat working, change the batteries of the thermostat. Also make sure that the thermostat is set in the correct mode, and has enough power, and airflow. If the thermostat still fails to work, there might be wire problems related to damage and corrosion.

What are the signs of a blocked thermostat?

A blocked thermostat gives out many signs like overheating, coolant leaking, drastic temperature changes, etc. It also makes weird noises and increased fuel consumption. So a blocked thermostat will not bring anything positive and must be repaired as soon as possible.

How can I test my thermostat?

You can test your thermostat by making sure it’s receiving power and it’s set to the appropriate settings. You can also alter the temperature of the thermostat to see if you inspect any changes. If you encounter any problems, remove the thermostat cover and inspect the wiring.

The Final Words

This is the end of this article. We hope that you know the reasons and solutions behind your wyze thermostat clicking.

If you’re confused or anxious about performing any of the fixes above, don’t worry. Consult an HVAC expert, and they will take care of this problem for you.

Best of luck!

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