My Smoke + Carbon Monoxide Alarm with Indoor Air Quality Monitor does not show up in the list of devices in the app. How can I fix that?

Reset your device. To do so, press the button on the face of the alarm for about 8 seconds. and you will hear 3 consecutive beeps. Upon rele...

I notice that the temperature on my thermostat and the temperature displayed in the Kidde app is different. Why is that?

It is important when comparing readings between different devices that the comparison is truly under the same conditions. Placement of the d...

I notice that the indoor air quality readings displayed in the Kidde app are not matching with other indoor air quality monitors in my home. Why is that?

It is important when comparing readings between different devices that the comparison is truly under the same conditions. Placement of the d...

I am not receiving notifications through the Kidde app. What should I do?

There could be multiple reasons why you're not receiving mobile notifications. Ensure that your smartphone has a stable internet connectionE...

My Indoor Air Quality (IAQ) readings haven’t changed over a long period, how do I tell if the device is still operating?

If IAQ readings are stagnant for a longer period, and/or you want to ensure that the IAQ sensor is working: Double-check that the Kidde devi...

I noticed that my Indoor Air Quality (IAQ) readings have changed without any change in the environment. Is that possible?

Any adjustment in the device’s environment, even the smallest change, can have an impact on the IAQ measurements from the device. Opening of...

How is the Indoor Air Quality (IAQ) reading affected by things like cleaning, smoking, use of aerosol sprays, etc.?

Cleaning materials, fragrances, room deodorizers, and other common household items can be sources of TVOCs, or Total Volatile Organic Compou...

What is the Wi-Fi range for the alarm?

The range of your Wi-Fi network is determined by the performance of your router. Please check your router settings for a better understandin...

A handy troubleshooting chart from the User Guide.

Consult the User Guide for more troubleshooting info.

Why can’t I see my home router while connecting alarms?

If your home router (SSID) is not visible during the setting up of your alarm, try the following options:If other routers in the vicinity ar...

Why am I not able to perform “Push to Test” from the Kidde app?

Your mobile device must be on the same Wi-Fi network as the Kidde smart alarmYour internet connection must be active and enabledEnsure that ...

Why am I getting a “Smoke/CO at Unknown Location” notification on my app during a test of my Smoke + Carbon Monoxide Alarm with Indoor Air Quality Monitor?

This is observed when multiple Kidde alarms are hardwire interconnected (HWI) to your smart alarm.When a test is initiated from your mobile ...

Why am I getting a “Must be on same Wi-Fi” error when trying to test the Smoke + Carbon Monoxide Alarm with Indoor Air Quality Monitor?

To perform a test, ensure that your smartphone and the Smoke + Carbon Monoxide Alarm with Indoor Air Quality Monitor are on the same network...

Why am I unable to connect my Smoke + Carbon Monoxide Alarm with Indoor Air Quality Monitor to the Kidde app? (iOS)

iOS software may need be updated to the most recent versionKidde app location services must be enabled to access Wi-Fi settings on the smart...

Why am I unable to connect my Smoke + Carbon Monoxide Alarm with smart features to the Kidde app? (Android)

Android software may need to be updated to the most recent version. Location services must be enabled to access Wi-Fi settings on the mobile...

Why is the LED ring not showing any light on the alarm?

In ambient low light conditions, the green LED ring fades to off, and then blinks approximately every 60 seconds. This unit samples the ambi...

I have enabled biometrics, however from time-to-time, the Kidde app asks me to log in using my password. Why is that?

At this time the biometric support is limited to providing access to the app while the user is logged into the app (i.e., did not log out by...

I have a technical question. How can I contact Kidde?

To reach Kidde’s customer service, please email: Kidde.Product.Support@carrier.com or call 1 (877) 542-5471, Monday through Friday, from 8:0...

Why is my Alexa responding back with “No alarm found”?

During the Registration process, each alarm is assigned to a specific room type (Bedroom, Kitchen). Querying Alexa must include this room ty...

I hear “Success – Now Connected” from my smart alarm, but the registration process has failed in the Kidde app. What should I do?

This could happen if your mobile device does not connect to your home router during the registration process.Reset the Smoke + Carbon Monoxi...