My ecobee is named ‘My ecobee3’, but Alexa does not seem to understand it.

This means Alexa might not be able to understand the name of your ecobee. Here are a few things you can do:

Make sure you’re using your ecobee’s name correctly. To confirm what you’ve named your ecobee, on your thermostat, go to Settings > Preferences > Thermostat.

Make sure that your ecobee’s name is easy to understand. For instance, Alexa will have trouble understanding ‘ecobee3 lite’ or a name that is spelled differently (such as 'b3dr00m').

You can change the name of your ecobee at any time by going to Settings > Preferences > Thermostat > Input the new name. Once you’ve changed it, you’ll need to ask Alexa to discover devices again.