6
Wi-Fi setup
1.  Download the Honeywell Home app.
2.  Create an account or log in to your 
account.
3.  Select “Add new device” in the app.
4.  Choose D6 Pro WiFi Ductless Controller.
5.  Follow instructions in the app to configure the controller.
Note: During setup, the WiFi icon 
 will blink or be on solid. This tells 
you the controller status in the WiFi connection process.
Blinking blue Controller is powered up and ready to begin connecting.
Solid blue Controller is connected to the mobile device through the app.
Solid green Controller is connected to the WiFi network.
Solid red Controller is disconnected from the WiFi network.
Blinking red Controller is disconnected from WiFi network and has lost it’s 
schedule. Reconnect to WiFi network to resume schedule.
In the Honeywell Home app
In the app you can set the controller to Auto Changeover. The 
controller will switch from heating mode to cooling mode based on the 
temperature setting and the room temperature.
When in Auto Changeover mode, 
 will be displayed on the controller 
screen.
GET IT ON
Enter system setup
You can change your controller settings at any time. To enter system 
setup:
1.  Be sure the controller is not in Idle mode, then press and hold 
 
+
 and 
o
 and 
-
 for three seconds all at the same time.
2.  Change the settings as needed. See “System setup” for more 
information.
Software and security questions,
Q: How can I be sure my thermostat is running the most up-to-date 
firmware?
A: When your thermostat is connected to WiFi, it will automatically 
receive over-the-air firmware updates from Honeywell. These firmware 
updates contain things such as new features as well as security 
upgrades. Keep your thermostat connected to WiFi to ensure it 
receives these updates.
Q: How can I prevent a cybercriminal from making unauthorized changes 
to my thermostat?
A: If a cybercriminal gains access to your WiFi router, they can tamper 
with a wide range of online activities, including the settings on your 
connected devices. Make sure you change the default password on 
your WiFi router, and when you select a new password, make sure it 
uses multiple upper- and lower-case letters and special characters