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How do I program my ecobee3 Lite thermostat?

Author

Avery Gonzales

Updated on March 10, 2026

How do I program my ecobee3 Lite thermostat?

To Adjust your Schedule from the Thermostat
  1. Wake up your ecobee Smart Thermostat, then tap Menu.
  2. Tap Schedule.
  3. Select the desired start time, then tap Save.
  4. If you wish to add a new activity, select the +.
  5. Select the Comfort Setting and then tap Save.
  6. Select the new activity's desired start time, then tap Save.

Correspondingly, how do I register my Ecobee thermostat?

In the ecobee App

  1. Launch the ecobee app on your mobile device.
  2. Select Register Your Device.
  3. Select ecobee Thermostat from the device list.
  4. Enter the registration code retrieved from the thermostat screen and tap Next.
  5. Then fill in the required information to proceed with the registration.

Beside above, does ecobee3 Lite work without WiFi? Without WiFi, you will not have any smart device functionality. Without Wifi, the Ecobee 3 will still function as a non-smart thermostat through physical access to the wall unit, but will only report the current home temperature and humidity information.

Keeping this in view, how do I clear my ecobee schedule?

Click Settings > Preferences > Hold Action, then choose Until the next scheduled activity. Now close the Settings window. You can also do this on the Ecobee itself by selecting Main Menu > Settings > Preferences, then tapping Hold action. Set it to Until next activity and you're done!

Does ecobee3 Lite have battery backup?

There's one caveat: The Ecobee3 Lite doesn't offer a rechargeable battery like Nest, so you'll need to have a C wire to power the digital display or install the included Power Extender Kit. Shut off power to your thermostat at the circuit breaker.

How do I troubleshoot my Ecobee thermostat?

Check for the following:
  1. A tripped circuit. Check your breaker box to ensure that the circuit powering the furnace isn't tripped.
  2. A blown fuse on the furnace control board.
  3. A tripped high-limit temperature sensor.
  4. A tripped float switch.

Is ecobee compatible with my home?

ecobee thermostats are compatible with most residential heating and cooling systems in North America, including gas, oil, electric, and dual fuel systems.

Which is better nest or Ecobee thermostat?

If you have a two-wire system, only the Nest will work. If you have more than two wires but no C-wire, the Ecobee is a better choice because it comes with a special power extender kit that essentially turns one of the wires into a C-wire for your thermostat.

Is ecobee3 discontinued?

Is ecobee3 discontinued? Not actively discontinued as you can still get support and purchase the device from major retailers.

Can you add sensors to ecobee3 Lite?

The Ecobee3 Lite connected thermostat is receiving a software update to make the device compatible with external temperature sensors. Ecobee says users who already own a Lite will receive an automatic firmware update while new units will ship with the sensor compatibility. A pack of two room sensors costs $79.

What's the difference between ecobee3 and ecobee3 Lite?

The Ecobee3 Lite does not support humidifiers, dehumidifiers, or ventilators while the Ecobee3 does. The Lite does not come with room sensors. The Ecobee3 comes with up to 3 room sensors depending on the size kit you buy.

How do I reset my Ecobee thermostat?

1 Factory Reset
  1. From the Home screen, press Menu.
  2. Select Settings.
  3. Go to Reset.
  4. Choose Reset All Settings then confirm your selection by pressing Yes.
  5. Choose the reset option that suits your needs:
  6. The ecobee thermostat will be reset to factory defaults.

Can't connect to my ecobee?

My ecobee is not connecting to ecobee servers
  1. Try power-cycling the ecobee by removing it from the wall and leaving it off for two minutes.
  2. After two minutes, place the ecobee back on the wall.
  3. To reconnect to Wi-Fi, go to MAIN MENU > SETTINGS > WI-FI > NETWORK > SELECT WI-FI NETWORK.

Where is the registration code on my Ecobee thermostat?

Obtaining the Registration Code

Tap the three horizontal bars on the bottom left corner of the ecobee screen to open the Main Menu. After completing these steps, the code will then be displayed on the thermostat's screen. Write this code down. NOTE: Registration codes are valid for about one hour before they expire.

How do I reset my ecobee without access code?

Regarding this, how do I reset my ecobee without password? Visit ecobee.com/lost-password/ to reset your password. A password reset email will be sent to the email address linked to you registered thermostat via noreply@ecobee.com.

Is ecobee owned by Amazon?

Amazon is backing Ecobee, a smart thermostat company, just days after buying Ring. Energy Impact Partners and Amazon Alexa Fund are among the investors in a $62 million round of funding for Ecobee. The deal follows Amazon's acquisition of Ring, a maker of smart-home-security devices.

Can you have 2 ecobee thermostats?

The same goes for upgrading from an ecobee3 lite to SmartThermostat with voice control. If you're looking to add additional thermostats to your home, you can mix-and-match different models knowing that the thermostats will work alongside each other. You can add up to 16 thermostats to a single account.

Can I use two ecobee thermostats?

Can I connect multiple thermostats to a single HVAC unit? Fortunately, you can. Many thermostat companies along with Ecobee, allow you to wire more than one thermostat to the same HVAC unit.

How do I unregister my Ecobee thermostat?

How to unregister a thermostat from the Web Portal:
  1. Login to ecobee.com to access the Web Portal.
  2. Click the icon in the top right corner.
  3. Click on My Account.
  4. Click Unregister Thermostat.

How does ecobee know when you are away?

By using the occupancy information reported by your ecobee thermostat's built-in occupancy sensor* and the Room Sensors paired with your ecobee, Smart Home/Away tracks your household's comings and goings to set the temperature for comfort or savings.

What happens if I reset my ecobee?

If you choose to "Reset All," your ecobee will be wiped clean and returned to factory settings. Your ecobee account will be deleted, as will your schedule, preferences, and equipment configuration. You will need to set up your ecobee from scratch once again.

How do I change my ecobee comfort settings?

Adjust your Comfort Settings on your ecobee or on the app:
  1. Select MAIN MENU, then tap COMFORT SETTINGS.
  2. Select the Comfort Setting you want to customize.
  3. Adjust the set points for heat and cool, as well as fan mode as required.
  4. You can also now select which sensors are participating in this Comfort Setting.
  5. Touch SAVE.

Why does my ecobee sensor says unoccupied?

Ecobee unoccupied time is the time the rooms stay with no activity. Ecobee occupancy is estimated at an interval of five minutes. Hence, your Ecobee doesn't active the Smart Away or Smart Home setting until five minutes are over.

How do I set the schedule on my ecobee?

2 Set Your Schedule
  1. Wake up your ecobee Smart Thermostat, then tap Menu.
  2. Tap Schedule.
  3. Tap the day you want to adjust.
  4. Tap on the activity you wish to adjust.
  5. Select the desired start time, then tap Save.
  6. If you wish to add a new activity, select the +.
  7. Select the Comfort Setting and then tap Save.

How long do ecobee sensors stay occupied?

The remote sensors run on battery power so they can be placed anywhere you like. The battery is a type for the old ecobee Room sensors is CR2032 (the little silver coin shaped batteries). It will run the sensor for 18-24 months. However, the new Smart Sensors use a CR2477 which should last for 5 years.

How do you reset Ecobee for new owner?

Unregister Your Ecobee from the Thermostat
  1. Go to your Ecobee Thermostat's main menu.
  2. Hit Settings.
  3. Hit Reset.
  4. Hit Reset Registration.
  5. Confirm and hit Yes.

Does ecobee screen turn off?

Screen Brightness

You can customize the brightness of your ecobee thermostat's screen. You can also configure the screen to automatically sleep (i.e. turn off) whenever your ecobee thermostat enters the Sleep activity period.