# Hardware issue? no power led

**URL:** <https://community.sparkfun.com/t/hardware-issue-no-power-led/46286>\
**Category:** LoRa (Long Range)\
**Created:** [September 29, 2023, 8:59pm UTC](https://community.sparkfun.com/t/hardware-issue-no-power-led/46286 "2023-09-29T20:59:11Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mgphoto](https://avatars.discourse-cdn.com/v4/letter/m/6bbea6/32.png) [@mgphoto](https://community.sparkfun.com/u/mgphoto)\
**Post date:** [September 29, 2023, 8:59pm UTC](https://community.sparkfun.com/t/hardware-issue-no-power-led/46286/1 "2023-09-29T20:59:11Z")

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Hello,

I just received my second Facet RTK unit and a set of SparkFun LoRa Serial radios which I believe are functioning correctly except that one of the pair doesn’t have a red led lit. I tried switching the units to different port connections and to different Facet units with no change. I can see the base unit flash yellow and the rover flash blue, which I believe is data being transmitted, I see 4 RSSI lights (what does RSSI stand for?).

I was wondering if the red led is configurable to stay off in a certain situations?

Thanks for your help.

Mike

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**Author:** ![mgphoto](https://avatars.discourse-cdn.com/v4/letter/m/6bbea6/32.png) [@mgphoto](https://community.sparkfun.com/u/mgphoto)\
**Post date:** [September 30, 2023, 3:28pm UTC](https://community.sparkfun.com/t/hardware-issue-no-power-led/46286/2 "2023-09-30T15:28:33Z")

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I am talking about the LoRa Serial Radio power LED not the Facet. The 4 RSSI, 1 power, 1 transmit and 1 receive. The 1 power on 1 radio doesn’t light up.

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**Author:** ![mgphoto](https://avatars.discourse-cdn.com/v4/letter/m/6bbea6/32.png) [@mgphoto](https://community.sparkfun.com/u/mgphoto)\
**Post date:** [November 7, 2023, 7:37pm UTC](https://community.sparkfun.com/t/hardware-issue-no-power-led/46286/3 "2023-11-07T19:37:03Z")

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Ok, I opened the case and found that the red led for the power indicator is missing, I opened the second unit to see what the functioning one looked like, and yes it is gone. It doesn’t seem to affect the connection at all.

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**Author:** ![Jeffakajeff](https://avatars.discourse-cdn.com/v4/letter/j/e274bd/32.png) [@Jeffakajeff](https://community.sparkfun.com/u/Jeffakajeff)\
**Post date:** [December 1, 2023, 2:04pm UTC](https://community.sparkfun.com/t/hardware-issue-no-power-led/46286/4 "2023-12-01T14:04:08Z")

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I just purchased a pair of LoRaSerial Kit - 915MHz WRL-20029 radios, and have exactly the same symptoms i.e. No red LED in one unit. It doesn’t seem to affect their operation though - just annoying.

I don’t think that it is worth the trouble/cost to return the “Dud” unit. So you’re not alone.

Not sure if this is of any help.