# Libre Reader Error Codes

**URL:** <https://forum.fudiabetes.org/t/libre-reader-error-codes/4906>\
**Category:** C/GM\
**Created:** [September 6, 2018, 2:27pm UTC](https://forum.fudiabetes.org/t/libre-reader-error-codes/4906 "2018-09-06T14:27:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Scotteric](https://avatars.discourse-cdn.com/v4/letter/s/59ef9b/32.png) [@Scotteric](https://forum.fudiabetes.org/u/Scotteric)\
**Post date:** [September 6, 2018, 2:27pm UTC](https://forum.fudiabetes.org/t/libre-reader-error-codes/4906/1 "2018-09-06T14:27:13Z")

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Does anyone know what error codes E-2 or E-9 mean? My Dexcom transmitter died and took my Libre Reader out of a drawer it had been sitting in for months. It works intermittently but then a message appears with either of these error codes and it shuts off.

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**Author:** ![glitzabetes](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/glitzabetes/32/4287_2.png) [@glitzabetes](https://forum.fudiabetes.org/u/glitzabetes)\
**Post date:** [September 6, 2018, 2:51pm UTC](https://forum.fudiabetes.org/t/libre-reader-error-codes/4906/2 "2018-09-06T14:51:45Z")

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I dug out the user guide and E-2 and E-9 have the exact same message

"Reader error

1. Turn off the reader
2. Repeat the test using a new test strip
3. If the error reappears, contact customer service"

The blood glucose testing section seems to be the only place I can find the error codes, though I did only briefly skim through the rest of the user guide. I’d probably skip straight to step 3 if you weren’t trying to test your BG with the reader

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**Author:** ![Scotteric](https://avatars.discourse-cdn.com/v4/letter/s/59ef9b/32.png) [@Scotteric](https://forum.fudiabetes.org/u/Scotteric)\
**Post date:** [September 7, 2018, 11:06am UTC](https://forum.fudiabetes.org/t/libre-reader-error-codes/4906/3 "2018-09-07T11:06:10Z")

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Hey, thanks for looking into this! I actually managed to get through to customer service (this was impossible when the Libre first launched in Canada, I would give up after being on hold for hours) and they are sending me a replacement. Guess I can’t expect much in the way of quality when the readers only sell for $50 online vs. the Dexcom receiver which costs me ~$700 when I got the G4!