If you are having trouble connecting your Sensor while installing your system, the Ecovent app will help you to troubleshoot your installation.
If you are still having connection problems:
Check that the sensor you are trying to pair has a flashing blue light on the bottom
This Sensor should be the only sensor in this state; if other Sensors are flashing blue, unplug them
If the Sensor has a solid blue light, and you still cannot connect the sensor, reset it by using the reset tool located under the hub (a paperclip will work) and briefly pressing the the the reset pinhole on the lower left of the sensor
If the Sensor has no light showing, check that the outlet has power by plugging something else into it
When connected, the Ecovent App will show that it has successfully connected and the Sensor light will appear solid blue.