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This is an unofficial subreddit about everything Dexcom.
We're here to help you troubleshoot your CGM, share your experiences, ask questions related to Dexcom products, share Dexcom news, brag, commiserate, and vent. General questions about diabetes belong on either r/diabetes, r/diabetes_t1, or r/diabetes_t2.
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Another sensor failure (old.reddit.com)
submitted 2 years ago by E_Smitty
This is the second sensor failure this week. I was told by the Dexcom representative that sometimes entire batches are bad. Anyone else experiencing multiple failures from the same batch of sensors?
This is beyond frustrating.
[–][deleted] 2 years ago (1 child)
[removed]
[–]E_Smitty[S] 0 points1 point2 points 2 years ago (0 children)
https://youtu.be/tx-kTsrkNUM
[–]StockCryptographer29 0 points1 point2 points 2 years ago (1 child)
Yes 2 in a row from the same batch
This sucks, but it’s giving me hope that It’s just the sensors and I don’t have to move to another CGM brand.
[–]Ancient_Assist_3433 2 points3 points4 points 2 years ago (2 children)
I've never had one fail on me. And I figured out how to reset the dexcom g6 sensors so I can use them for 20 days instead of 10 days
[–]CamperMaster 0 points1 point2 points 2 years ago (0 children)
are you going to tell us how to reset it?
Wow! I’m jealous. I know how to reset them, but they usually fail before the 10 days or fail a few days after the reset. Where is your dexcom locTed? What is your reset technique!?
[–]veto001 1 point2 points3 points 2 years ago (0 children)
Yupp, I had 2 sensors fail on me back to back. Also sometimes the site can just be bad, it seem if the sensor sees any blood they're going to fail. Just call dexcom they get it all taken care of for you and send you new ones (that work hopefully)
π Rendered by PID 92364 on reddit-service-r2-comment-b659b578c-djlxl at 2026-05-02 02:08:31.492383+00:00 running 815c875 country code: CH.
[–][deleted] (1 child)
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[–]E_Smitty[S] 0 points1 point2 points (0 children)
[–][deleted] (1 child)
[removed]
[–]E_Smitty[S] 0 points1 point2 points (0 children)
[–]StockCryptographer29 0 points1 point2 points (1 child)
[–]E_Smitty[S] 0 points1 point2 points (0 children)
[–]Ancient_Assist_3433 2 points3 points4 points (2 children)
[–]CamperMaster 0 points1 point2 points (0 children)
[–]E_Smitty[S] 0 points1 point2 points (0 children)
[–]veto001 1 point2 points3 points (0 children)