The Status LED blinks when the device is on, but not connected to the internet (Wi-Fi).
If the flashing pattern is off for 2 seconds and on for 1 second, then the problem is within the detector – Wi-Fi system. For example, because the Wi-Fi password has not been entered correctly.
If the blink pattern is off for 5 seconds and on for 1 or 5 seconds, the problem is with the AeroCount server.
For more information about the Status LED see Using the device.