How do I reset the Wi-Fi on my Lyric?

The simplest way to reset the Wi-Fi on your Lyric thermostat is to do it manually. Please follow the instructions on the video below for a visual guide on how to complete this procedure.

You can also reset the Wi-Fi on your Lyric by following these steps:

If you have a Round thermostat, press and hold the Weather icon on the thermostat for approximately 5 seconds, as seen in the image below. This will remove the thermostat from the Wi-Fi network and enable you to go through the Wi-Fi connection process with your new router. Your previous Lyric settings will be retained.

Weather icon Honeywell Thermostat

If Lyric is not finding the home Wi-Fi network, please note that Lyric operates in the 2.4GHz range. That may be why the thermostat does not see the network but the smartphone, which operates in both the 2.4 and 5.0 GHz range, sees the network. Most routers will broadcast two networks, one SSID on the 5.0 GHz radio and one SSID on the 2.4 GHz radio.

In a home that does not have Wi-Fi, Lyric can still work, but as a basic thermostat. However, please note that key features, including location based temperature control and custom shortcuts, require a Wi-Fi connection.

Why should I pair my Lyric Round thermostat with the Lyric Controller?

You can easily control the Lyric thermostat, as well as other smart home devices, from the Lyric Controller interface. Automate smart scenes for energy savings, comfort and security while managing your Lyric Round locally, from the Controller’s interface, or remotely, from your Total Connect Comfort app.

How do I setup and configure my Lyric Round thermostat using the Lyric app?

Once a Lyric account is created, open the Lyric app using a smart phone or tablet and login. Select Add New Device, and select Lyric Round Thermostat. Follow the prompts within the Lyric app in order to complete the configuration and connection of the device.

For more information, please watch this instructional video:

How does the Lyric Controller work with the Lyric Round Thermostat?

The Lyric Controller allows you to manage your smart home devices, including your Lyric thermostat. Once paired together, all Lyric thermostat functions can be operated from the Controller’s interface.

How do I know if my old thermostat contains mercury?

The thermostat will have a glass tube with a silver liquid inside of the tube. Mercury is typically found in older mechanical thermostats like the Honeywell Round T87 and rectangular T8090.
NOTE: Do not place your old thermostat in the trash if it contains mercury in a sealed tube. Contact the Thermostat Recycling Corporation at http://www.thermostat-recycle.org/ or 1-800-238-8192 for information on how and where to properly and safely dispose of your old thermostat.

How do I replace the lithium AAA battery on the Lyric Round?

Remove the thermostat from the sub base. If the sub base is securely connected to the wall, the face plate will disconnect if pulled straight out from the wall. Remove the current battery and replace it with a new AAA lithium battery (make sure the battery polarity matches the markings on the sub base). Reconnect the face plate to the sub base and make sure the connection is secure.

How do I choose how many cycles per hour I need?

Cycles per hour (cycle rate) is a measure of how many times per hour your heating or cooling system will turn on and off. You do not need to select a cycle rate as part of setting up your Lyric; it will automatically suggest a cycle rate appropriate for your system based on the information you provide. If you wish to manually adjust your cycle rate, tap Advanced Configuration.

What is a c-wire? Do I need one? What if I don’t have a c-wire?

What is a C-Wire?

A common wire (C-Wire) provides Wi-Fi thermostats continuous power by connecting it to a heating and cooling system (e.g. furnace). C-Wires are required on most Honeywell Wi-Fi thermostats, with the exception of the Smart Round Thermostat (formerly known as the Lyric Round). C-Wires are required on all Honeywell Home / Resideo Wi-Fi thermostats. For full wiring assistance/terminal designations/functions: Click here

How do I check if my thermostat is using a C-Wire?

1. Turn off power

To protect your equipment, turn off the power at the breaker box or switch that controls your furnace or heating equipment.

Note: Turning off your thermostat won’t turn off the power to the furnace or heating equipment.

C-Wire

2. Check that your system is off

Change the temperature on your existing thermostat so that your system starts heating or cooling. If you don’t hear or feel the system turn on within 5 minutes, the power is off.

Note: If you have a digital thermostat that has a blank display, skip this step.

C-Wire

3. Remove your existing thermostat from the wall plate

On most thermostats, you can take off the thermostat by grasping and gently pulling. Some thermostats may have screws, buttons, or clasps.

Note: Don’t remove any wires from your thermostat at this time.

C-Wire

4. Do you have a C-Wire?

Look at the existing wall plate’s wiring: is there a wire in the C-Terminal?

YES – This means your thermostat is using a C-Wire.

NO – This means your thermostat isn’t using a C-Wire. Please view next question to learn what to do if your thermostat is missing a C-Wire.

C-Wire

If you’re installing a new thermostat, but your existing one is missing a C-Wire, you have the following options:

Check for Unused C-Wire

Some homes have an unused C-Wire hidden in the wall. To check for an unused C-Wire:

1. Turn off power

To protect your equipment, turn off the power at the breaker box or switch that controls you heating and cooling equipment.

Note: The thermostat off switch won’t turn off the power to the equipment.

C-Wire

2. Check that your system is off

Change the temperature on your existing thermostat so that your system starts heating or cooling. If you don’t hear or feel the system turn on within 5 minutes, the power is off.

Note: If you have a digital thermostat that has a blank display, skip this step.

C-Wire

3. Remove your existing thermostat from the wall plate

On most thermostats, you can take off the thermostat by grasping and gently pulling. Some thermostats may have screws, buttons, or clasps.

Note: Don’t remove any wires from your thermostat at this time.

C-Wire

4. Do you have a line voltage system?

Line voltage systems have thick, black wires with wire nuts, or are labeled high voltage (120V or higher).

YES – Your system may not compatible. Contact Support at 1-855-733-5465 to find a pro-installer in your area.

NO – Continue to the next step.

C-Wire

5. Take a picture of your existing wall plate’s wiring

Make sure you get a good view of all terminals. You may need to reference this image later.

C-Wire

6. Remove any jumpers

A jumper is used to connect two terminals. It may look like a small staple or colored wire.

Note: Don’t discard any jumpers.

C-Wire

7. Label wires

Label each wire on your existing wall plate with the stickers provided with your new thermostat. If you don’t have stickers, you can use tape and a pen.

Note: Don’t label jumpers.

C-Wire

8. Write down the colors of the wires

Check the boxes and write down the color of the wires connected to terminals in the existing wall plate. Check all that apply (not all will apply).

Note: If there are wires in terminals that aren’t listed, you will need additional wiring support. Contact Support at 1-855-733-5465.

C-Wire

9. Disconnect the wires and remove the existing wall plate

Some wire terminals are “push-in” type (gently push on the terminal to release the wire), and some are flat-head screws. You may need a screwdriver to release wires from terminals.

Note: Wrap the wires around a pencil to prevent them from falling into the wall.

C-Wire

10. Do you have a C-Wire?

This is to confirm that your system isn’t using a C-Wire. Look at the thermostat wiring checklist from Step 8: is the C-Terminal checked? Alternatively, you can look at the photo from Step 5: is there a wire in the C-Terminal?

YES – This means your thermostat is using a C-Wire, and you don’t need to install a C-Wire Adapter. You can continue installing your new thermostat.

NO – This means your thermostat isn’t using a C-Wire. Continue to the next step.

C-Wire

C-WireGo to your furnace or heating system

This system is often located in your basement, attic, or garage.

11. Do you have a zoning panel?

Your zoning panel is often mounted to the ducting on your furnace. It typically has a bundle of wires that runs to your heating/cooling system, and smaller bundles of wires that run to dampers on your ductwork.

YES – C-Wire Adapter installation is more complicated for zoned systems. Contact Support at 1-855-733-5465 to find a pro-installer in your area.

NO – Continue to the next step.

Return to your existing thermostat

C-Wire

12. Do you have an unused wire?

You previously removed your existing wall plate. Look at the bundle of wires coming from the wall.

Note: You may have to pull the bundle of wires out from the wall to find the unused wire.

YES – You can use this unused C-Wire. Continue to Step 13.

NO – Since you don’t have C-Wire, you need to use a C-Wire Adapter. Continue to the Use C-Wire Adapter section.

C-Wire

13. Label unused wire

Label your unused wire with the “C” sticker provided with your new thermostat. If you don’t have stickers, you can use tape and a pen. You may need to use a wire stripper to expose at least 1/4 inch of wire.

Note: If you have multiple unused wires, then label only one wire and make note of the color.

C-WireGo to your furnace or heating system

This system is often located in your basement, attic, or garage. Bring a flashlight and screwdriver.

C-Wire

14. Remove cover from furnace or heating system

Open the heating and cooling system’s cover to find the control board. The control board may be at the top or the bottom. You should see the same terminal labels that are on your thermostat.

Note: If you don’t see a control board, your system may not be compatible. Contact Support at 1-855-733-5465 to find a pro-installer.

C-Wire

15. Find the other end of the unused wire

In Step 12, you found a bundle of wires near your existing thermostat. Locate the other end of this bundle near your furnace or heating system, and then find the unused wire.

Note: The unused wire should be the same color as the one near your existing thermostat. See Step 13 for the color you wrote down.


16. Connect the unused wire to the C-terminal in the control board

Note: If there are existing wires in the C-terminal, make sure they are still connected after connecting the unused wire.

C-Wire

17. Close the cover to the furnace or heating system

Be sure the cover is completely closed. Some systems won’t power up if the cover isn’t fully closed.

Congratulations, you’ve connected an unused C-Wire! You won’t need to use a C-Wire Adapter. You are now complete.

C-Wire

Use C-Wire Adapter

A C-Wire Adapter replaces the need for a C-Wire. The C-Wire Adapter is included in newer Honeywell Wi-Fi Thermostats. If you own an older thermostat model, you can purchase a C-Wire Adapter here.

To use a C-Wire Adapter:

18. Do you have a G and Y wire?

In Step 7, you labeled the wires of your existing wall plate. Look at those wires and make sure you have both a G and Y labeled.

YES – This means your system is compatible with the C-Wire Adapter. Continue to the next step.

NO – Your system is not compatible with the C-Wire Adapter. Contact Support at 1-855-733-5465 to find a pro-installer.


19. Relabel your G-Wire to “C”

Relabel your G-Wire with the “C” sticker provided with your new thermostat. If you don’t have stickers, you can use tape and a pen.

C-Wire

20. Relabel your Y-Wire to “K”

Relabel your Y-Wire with the “K” sticker provided with your new thermostat. If you don’t have stickers, you can use tape and a pen.

C-WireGo to your furnace or heating system

This system is often located in your basement, attic, or garage. Bring a flashlight, labels, phone, and screwdriver.

C-Wire

21. Remove cover from furnace or heating system

Open the heating and cooling system’s cover to find the control board. You should see the same terminal labels that are on your thermostat.

Note: You may need to unscrew the cover. The control board may be at the top or the bottom.

C-Wire

22. Take a picture of the control panel wiring

Make sure you get a good view of the following terminals, since you may need to reference this image later:

  • G
  • C
  • R
  • W or W1 (not in all systems)
  • Y or Y1

Note: If you have wires connected to two R-Terminals, then you have a two-transformer system and need additional assistance. Contact Support at 1-855-733-5465 to find a pro-installer.

C-Wire

23. Label wires

Label each the following wires with the stickers provided with your new thermostat:

  • G
  • C
  • R
  • W or W1 (not in all systems)
  • Y or Y1

If you don’t have stickers, you can use tape and a pen.

Note: If multiple wires are connected to a terminal, only label the wires running to your thermostat *.

C-Wire

24. Disconnect the labeled wires

Disconnect only the wires that you labeled. Don’t disconnect any unlabeled wires. If unlabeled wires disconnect, reconnect immediately.

Note: You may need a screwdriver to release wires from terminals.

C-Wire

25. Connect labeled wires to the C-Wire Adapter

On the C-Wire Adapter’s “Thermostat” side, press down a tab to open the corresponding terminal. Insert the labeled wires to the following terminals:

  • W-Wire –> W-Terminal
  • G-Wire –> C Terminal
  • Y-Wire –> K-Terminal
  • R-Wire –> R-Terminal

Note: This will convert G into C, and Y into K.

C-Wire

26. Make sure the wires are connected

Gently tug on the wires to make sure they are connected to the C-Wire Adapter.

C-Wire

27. Connect C-Wire Adapter to control board

On the C-Wire Adapter’s “Equipment” side, connect the wires to the corresponding terminals on the control board.

Note: Be sure to remove the plastic tip on each wire before connecting to a terminal.

C-Wire

28. Mount C-Wire Adapter

Use the included mount and adhesive pad to attach the C-Wire Adapter inside your furnace or heating system.

Note: Make sure your wires aren’t over-extended or strained.

C-Wire
C-Wire

29. Close the cover to the furnace or heating system

Be sure the cover is completely closed. Some systems won’t power up if the cover isn’t fully closed.

Congratulations, you’ve connected a C-Wire Adapter! You are now complete.

C-Wire

Check if your System is Heat-only or RedLINK

Both heat-only and RedLINK thermostat systems have only two wires, typically R and W for heat only systems. Heat-only and REDLINK thermostats with only 2 wires are not directly compatible with wi-fi thermostat replacements or C Wire Adapters. Contact Support at 1-855-733-5465 to find a pro-installer.

30. Turn off power

To protect your equipment, turn off the power at the breaker box or switch that controls your furnace or heating equipment.

Note: Turning off your thermostat won’t turn off the power to the furnace or heating equipment.

C-Wire

31. Check that your system is off

Change the temperature on your existing thermostat so that your system starts heating or cooling. If you don’t hear or feel the system turn on within 5 minutes, the power is off.

Note: If you have a digital thermostat that has a blank display, skip this step.

C-Wire

32. Remove your existing thermostat from the wall plate

On most thermostats, you can take off the thermostat by grasping and gently pulling. Some thermostats may have screws, buttons, or clasps.

Note: Don’t remove any wires from your thermostat at this time.

C-Wire

33. Do you only have 2 wires?

Check how many wires you see connected to terminals.

YES – Continue to next step.

NO – You don’t have a heat-only system.

34. Are the 2 wires connected to the R and W terminals?

YES – You have a heat-only system, which is more complicated. Contact Support at 1-855-733-5465 to find a pro-installer in your area.

NO – You may have a RedLINK system, which is more complicated. Contact Support at 1-855-733-5465 to find a pro-installer in your area.

My Wi-Fi thermostat uses batteries. Do I still need a C-Wire?

If your Wi-Fi thermostat uses batteries, you don’t need a C-Wire.

Some Wi-Fi thermostats are dual-powered by either batteries or C-Wire. These devices only require either batteries or C-Wire, but not both.

Home Energy Report: How to reconnect your thermostat?

To reconnect your thermostat to Wi-Fi, make sure your router is powered on and broadcasting. Restart your router by pressing the ON/OFF button or by unplugging the device then plugging back in after approximately five seconds.

If the problem persists, you may need to reset the thermostat’s Wi-Fi connection or reset your home Wi-Fi. For help reconnecting your thermostat’s Wi-Fi, view our FAQ section or visit our support page. For a video tutorial on how to reset your Lyric Round, Lyric T5 or Wi-Fi Smart Thermostat, visit our YouTube channel.

To reset your home Wi-Fi, refer to the router’s instruction manual. When the Wi-Fi network has been restored, the thermostat will automatically reconnect.

Does Smart Home Security work with other Honeywell Home products?

Smart Home Security joins other Honeywell Home products like The Round, T5, and T6 thermostats; C1 and C2 Wi-Fi Security Cameras; and, Water Leak and Freeze Detector. You can set up and use all these solutions with the same Honeywell app.

How do I reset my Honeywell Home device?

There are several types of resets available. What would you like to reset?

  • FACTORY RESET – Use this to reset your device back to its original settings. Continue to the Factory Reset section.
  • WI-FI RESET – Use this to make your device “forget” its current Wi-Fi network. Continue to the Wi-Fi Reset section.
  • SCHEDULE RESET – Use this to clear your device’s schedule. Continue to the Schedule Reset section.
  • HOMEKIT RESET – Use this to reconnect your device to your Apple account. Continue to the HomeKit Reset section.

Factory Reset

*A factory reset will completely erase all Wi-Fi and Configuration settings for your thermostat. If you do not know your home system type / configuration, we recommend contacting a HVAC professional for assistance*

What device are you trying to factory reset?

T5+/T5/T6 (RCHT8610WF, RCHT8612WF, TH6320WF2, TH6220WF2)

  • Press and hold Menu
  • Press [Symbol] until you see Reset, and then select it
  • Press [Symbol] until you see Reset, and then select it
  • Congratulations! You’ve reset your device! You can now configure your device for it’s new settings, either using the Honeywell Home mobile app, or on the thermostat screen itself.

Smart/Lyric Round (TH8732WFH)

  • Press and hold the Cloud Icon
  • Press ↓ until you see Reset, and then select it
  • Congratulations! You’ve reset your device! You can now configure your device for it’s new settings via the “+” icon, or “Add new device” button on your Honeywell Home mobile app. You can also configure your thermostat on the thermostat screen itself using the

How do I replace the lithium AAA battery on the Lyric Round?

Remove the thermostat from the sub base. If the sub base is securely connected to the wall, the face plate will disconnect if pulled straight out from the wall. Remove the current battery and replace it with a new AAA lithium battery (make sure the battery polarity matches the markings on the sub base). Reconnect the face plate to the sub base and make sure the connection is secure.

Does Honeywell manufacturer a thermostat that will allow me to control my humidifier as well as the heating and cooling equipment?

The Prestige IAQ thermostat kit can control humidification, dehumidification, ventilation, heating and cooling. The RCH9310WF, RCH9300WF, TH8732WF and the TH8732WFH can control humidity as well as heating and cooling. The H6062, H8908 and DG115 control a humidifier but not heating or cooling.

Specifications

The Round Smart Thermostat

Thermostat TypeProgrammable, Communicating, Low Voltage, Digital
WiFi Specifications802.11b, 802.11g, 802.11n, 2.4GHz range
ColorSilver
IncludesThermostat, Wall Plate, Screws, Anchors, Optional Wall Cover
Program Modes7-Day Programmable
Utility RewardsYes
Display TypeLCD Screen
Product Height3.78 in
Product Length3.78 in
Product Width0.79 in
Warranty2 Years
Control FunctionsHeating, Cooling, Humidify, Dehumidify, Ventilation
Alerts and RemindersFilter Change 1, Battery Replacement, Humidifier Pad (through app)
Energy Star CertifiedYes

Downloads

Professional Install Guide [pdf]: Round Smart Thermostat

Getting Started [pdf]: Round Smart Thermostat TH8732WF

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