# My sensor is not starting

**URL:** https://community.purpleair.com/t/my-sensor-is-not-starting/22932
**Category:** Sensors
**Created:** [September 26, 2026, 1:33pm UTC](https://community.purpleair.com/t/my-sensor-is-not-starting/22932 "2026-09-26T13:33:23Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![abdoulaye\_sow](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/abdoulaye_sow/32/6260_2.png) [@abdoulaye\_sow](https://community.purpleair.com/u/abdoulaye_sow)
#### Post date: [September 26, 2026, 1:33pm UTC](https://community.purpleair.com/t/my-sensor-is-not-starting/22932/1 "2026-09-26T13:33:24Z")

</div>

I just plugged in my sensor; the red light is on, but the sensor isn’t starting up.  
What is the solution?  
Note: The sensor was working before the problem occurred.  
I can no longer see its Wi-Fi signal or the green light that indicates it has started.