If some or all of the sensor values are missing from the VELUX ACTIVE, then the sensor may be unreachable (this will be indicated in the app). Please check the sensor batteries and replace them if needed.&nbsp;
If only the carbon dioxide (CO2) value is missing, but the humidity and temperature levels are displayed correctly, then wait for 5-10 minutes to see if a measurement appears. The CO2 level is only measured every 5 minutes, and this may occur after a battery replacement.
If none of these actions have made the sensor values appear, then the sensor needs to be replaced.
Note:&nbsp;CO2 measures will not be displayed up to 12 hours after initial installation due to calibration of the sensor.

If some or all of the sensor values are missing from the VELUX ACTIVE, then the sensor may be unreachable (this will be indicated in the app). Please check the sensor batteries and replace them if needed. 

If only the carbon dioxide (CO2) value is missing, but the humidity and temperature levels are displayed correctly, then wait for 5-10 minutes to see if a measurement appears. The CO2 level is only measured every 5 minutes, and this may occur after a battery replacement.

If none of these actions have made the sensor values appear, then the sensor needs to be replaced.

Note: CO2 measures will not be displayed up to 12 hours after initial installation due to calibration of the sensor.

Some sensor measurements are not displayed on the VELUX ACTIVE. What can I do?

I am having trouble setting up and installing VELUX ACTIVE. What should I do?

Where should I place my VELUX ACTIVE sensors?

Do I have to reset all my skylights to install VELUX ACTIVE with NETATMO?

How can I share access to my VELUX ACTIVE?

Where should I place the departure switch for my VELUX ACTIVE?

How do I set up my VELUX Active?

Will VELUX ACTIVE work with my existing VELUX skylight?

What does the VELUX ACTIVE starter kit include?

How can I purchase additional VELUX ACTIVE Indoor Climate Sensors?

Can I have more than one VELUX ACTIVE departure switch?

How does the VELUX ACTIVE with NETATMO algorithm control my indoor climate?

Where should I place my gateway for my VELUX ACTIVE?

How can I download the VELUX ACTIVE app?

What is VELUX ACTIVE with NETATMO?

How can I purchase VELUX ACTIVE?

What is the maximum operating range betweena VELUX ACTIVE sensor, departure switch, and the gateway?

How do I remove a VELUX ACTIVE sensor?

How many switches can I add to my VELUX ACTIVE gateway?

Can I change the default settings for automatic control on my VELUX ACTIVE?

I've changed my Wi-Fi access code or I've moved. How can I update my Wi-Fi configuration on my VELUX ACTIVE?

Where should I place my sensors for my VELUX ACTIVE? 

What is the quick action button "Lock" and the departure switch used for on my VELUX ACTIVE?

Where can I find the MAC address and/or serial number of my VELUX ACTIVE?

How do I operate my VELUX skylight or skylight shade to a desired position?

How do I install an additional sensor on a VELUX ACTIVE?

Is the VELUX ACTIVE app available for my phone?

How many users (or app instances) can I connect to my VELUX ACTIVE with NETATMO or VELUX App Control gateway?

How many homes can I control from the VELUX ACTIVE with NETATMO or VELUX App Control?

What type of Wi-Fi network is required for a VELUX ACTIVE?

How many skylights or skylight shades can be controlled by VELUX ACTIVE with NETATMO or VELUX App Control?

How many sensors can I add to my VELUX ACTIVE gateway?

Is VELUX ACTIVE with NETATMO compatible with Google Home or Amazon Alexa home assistants?

I'm having trouble finding my skylights and skylight shades while installing my VELUX ACTIVE. What should I do? 

How can I download the app for VELUX ACTIVE with NETATMO and VELUX App Control?

Can I install VELUX ACTIVE with NETATMO without the sensors?

How can a new user access my VELUX ACTIVE with NETATMO or VELUX App Control solution?

I have a new phone or tablet. How do I access my existing VELUX ACTIVE with NETATMO or VELUX App Control solution?

Can I connect an Apple and Android phone to VELUX ACTIVE with NETATMO or VELUX App Control at the same time?

How can I know if my VELUX ACTIVE gateway is properly powered?

I bought a new VELUX ACTIVE with NETATMO to replace an old one. How can I transfer my old data?

I cannot connect my VELUX ACTIVE with NETATMO or VELUX App Control to my Wi-Fi network. What should I do?

I have a poor Wi-Fi signal. How can I boost it?

My VELUX ACTIVE sensor or departure switch is not detected by the gateway. What should I do?

I have a weak signal from my VELUX ACTIVE sensor or departure switch. How can I boost it?

How do I select the skylights or skylight shades to be controlled by the VELUX ACTIVE sensor?

Can I move a VELUX ACTIVE sensor to another room?

Can I use one VELUX ACTIVE sensor to control multiple rooms?

How do I install an additional departure switch to my VELUX ACTIVE?

What is the maximum control range between the VELUX ACTIVE gateway and a skylight or skylight shade?

I just purchased a new VELUX skylight or skylight shade. How do I pair it with my remote control?

I just purchased a new skylight or skylight shade, how can I add it to my VELUX ACTIVE gateway?

How can I update my VELUX ACTIVE gateway?

Where can I find VELUX Product Guarantees for VELUX ACTIVE and VELUX App Control?

What is the difference between VELUX App Control and VELUX ACTIVE with NETATMO?

Why do I see a red dot next to the Settings icon of my VELUX ACTIVE?

Where can I see the VELUX ACTIVE with NETATMO and VELUX App Control Terms of Use?

Where can I see the air quality level of my home on my VELUX ACTIVE?

Where can I see the measurements from each VELUX ACTIVE sensor?

What is a good indoor temperature level when using the VELUX ACTIVE?

How can I change between Fahrenheit and Celsius on my VELUX ACTIVE?

What is a good indoor humidity level to maintain with VELUX ACTIVE?

What is a good indoor CO2 level to maintain with VELUX ACTIVE?

Where can I check the  battery level / radio signal of my VELUX ACTIVE gateway and remotes?

How do I get the VELUX ACTIVE app to show another home?

I forgot the password to my VELUX ACTIVE account. What should I do?

How can I update the VELUX ACTIVE app to the latest version?

How do I stop a VELUX skylight or skylight shade in operation?

How do I temporarily stop the automatic control of a VELUX skylight?

How do I open my VELUX skylight to the ventilation position?

How do I find the correct VELUX skylight or shade to be operated in the VELUX ACTIVE app?

Can I define a group of VELUX skylights or skylight shades to be controlled together?

Why can't I access my VELUX skylight or skylight shade from my app, it is supposed to be automatically controlled by VELUX ACTIVE with NETATMO or VELUX App Control?

Can I open my VELUX skylights with the VELUX ACTIVE app if it is raining?

How do I rename my home, room, skylights or skylight shades with my VELUX ACTIVE?

Can I create a notification to alert me when the VELUX ACTIVE sensor batteries are low?

How do I manage my notification preferences or create customized notifications on my VELUX ACTIVE?

What are the quick action buttons "Sun" and "Moon" used for on my VELUX ACTIVE?

Can I modify the functionality of the quick action buttons on my VELUX ACTIVE?

Why can't I unlock my home from the VELUX ACTIVE app using the grey unlock icon?

Why does my home unlock when I open a skylight with my VELUX ACTIVE?

Can I modify how the VELUX ACTIVE algorithms control my VELUX skylights and shades?

Are external weather factors such as wind, cold and heat taken into account by the VELUX ACTIVE algorithm?

How do I select the skylights that are controlled by VELUX ACTIVE with NETATMO?

Will VELUX ACTIVE with NETATMO and VELUX App Control keep working during internet or power outages?

My automatic control on my VELUX ACTIVE enters secure mode after a power failure. What should I do?

Can I set the VELUX skylight to close automatically after a predefined period?

What is the maximum time period for automatic skylight closure with VELUX ACTIVE?

Can I use VELUX ACTIVE to define my own schedule for opening and closing my skylights and skylight shades?

Can I turn off VELUX ACTIVE with NETATMO or VELUX App Control to stop the automatic control of my skylights or skylight shadess?

Can I use VELUX ACTIVE to turn off automatic control during the night? 

Can I turn off VELUX ACTIVE with NETATMO or VELUX App Control in one room and leave it on in another?

Can I define individual scheduling of VELUX ACTIVE with NETATMO or VELUX App Control during weekdays and weekends? 

How does VELUX ACTIVE with NETATMO measure the room temperature?

The temperature displayed in the VELUX ACTIVE app differs from another thermometer measurement. What should I do?

How does VELUX ACTIVE  with NETATMO measure the humidity level of the room?

How does VELUX ACTIVE with NETATMO measure the carbon dioxide level (CO2) of the room?

My VELUX ACTIVE sensor does not work. What should I do?

I can't see any rain measurement levels in the VELUX ACTIVE app. What can I do?

How often must I replace the batteries in the VELUX ACTIVE sensor and departure switch?

VELUX ACTIVE with Netatmo