Resideo App Help & Support
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Resideo Family of Apps
It's simple to control home comfort, monitor energy usage and more with our family of apps that make it easy to manage your smart home devices from anywhere.
First Alert App Topics
The First Alert App is
currently available for users
who do not have an existing
Resideo account. Existing
Total Connect 2.0, Resideo or
Honeywell Home app users
can still control their devices
via their current mobile app
until they are migrated to
the new First Alert App.
Please see below for support
FAQs.
What is the First Alert App?
If I switch from the Resideo App to the First Alert App what will happen to my current integrations?
How do I add or remove devices in the First Alert App?
How do I operate the First Alert App?
How do I reconnect my First Alert device to Wi-Fi?
Why do I get a "Device is already registered" error message when trying to connect my First Alert device?
View All Popular Support Topics
First Alert App Videos
Enrolling the First Alert VX1 HD Video Doorbell Through the First Alert App
First Alert VX1 HD Video Doorbell Installation
Enrolling the First Alert VX3 Outdoor Camera Through the First Alert App
Connect L1 to WiFi and the First Alert App
Connect L2 to WiFi and the First Alert App
L5 WiFi Water Leak Shutoff Valve - How to Connect to the First Alert app and WiFi
L5 WiFi Water Leak Shutoff Valve - How to Connect to the First Alert app and WiFi
How to connect to WiFi and First Alert app (T5, T6 Pro Smart)
Scheduling in First Alert App
Schedule Override and Troubleshooting
Change Mode and Fan Settings
Connect to WiFi and First Alert App - T10+ thermostat
Manage Temperature and Humidity Alerts | T9, T10 and T10+ Thermostats
Connect to WiFi and First Alert App - T9
Popular Support Topics
I'm having trouble with the Resideo App on my iPhone IOS 14.2.
What extra features do I get by connecting to WiFi and registering my WiFi 9000 Color Touchscreen Thermostat?
What extra features do I get by connecting to WiFi and registering my RTH8500WF WiFi Series WiFi Touchscreen Programmable Thermostat?
How do I unregister my thermostat from a previous account?
What mobile devices can I use with my Lyric thermostat?
What if I’m seeing an ‘Unexpected Error’ message during the Accessory Setup using an iOS smart device?
How do I setup and configure my thermostat to work with Apple HomeKit?
Home App: How do I upgrade my app?
Can I use my phone's finger print functionality to unlock my lyric app?
Can I manage my Lyric thermostat through a PC?
View All Popular Support Topics
Can't find what you're looking for?
Top Searched Videos
How to Connect to WiFi and Resideo App – T5 Smart & T6 Pro Smart Thermostats
Connect to WiFi and Resideo app with T9 Thermostat
App Status
Your issue may be related to a system outage on one of our applications. See current status of Resideo's mobile applications below
Resideo – Smart Home:
Total Connect Comfort App:
First Alert App:
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