A: Zen (and Touch) sensors contain a new “Tap” feature to adjust the brightness of the LED’s. Double tapping the sensor will cycle the LED’s through the different brightness settings, so try double tapping the sensor and you should find the LED’s come back to life.
We will work on improving this feature to avoid unintentional changes to the brightness, like with someone walking on the deck nearby the sensor.
Hello, my indoor sensor works and appears on the map. But the LED light isn’t on. I took off the plastic, and if I hold down the LED it illuminates green. Then if I release the button, it goes dark. Please advise as to best way to troubleshoot. Do you have a video on topic?
We responded to your email to help resolve your issue. If you have further questions, feel free to comment on the community or reach out to our support team again.
I seem to have this same problem. What part of the sensor do I double tap on? I re registered to make sure it was on and to a decent #. It is. But no lights.
Double tap the top of the sensor. An example video is found here. If it doesn’t change brightness, try tapping harder as gentle taps may not register.
Also keep in mind that only PurpleAir Touch and Zen sensors can be tapped to change brightness. Older PA-I-Indoor devices do not have this feature.
If your sensor still doesn’t change brightness, send an email with the device ID to contact@purpleair.com.
Btw, we had a huge thunderstorm here yesterday and the thunder turned off the purple air zen ring light. So if the sensitivity could be tweaked that would be great…