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Fitbit Blaze heart rate monitor lights flashing on and off rapidly and not reading heart rate

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I have a Fitbit blaze and the green lights of the heart rate monitor are flashing on and off in a pattern of two then rest I have the monitor option on auto then I changed it to on but no fix please help

 

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Welcome to the Community @GavinR2! Thanks for sharing the issue you have with the heart rate sensors. I appreciate the details you provided and the steps you did trying to find a solution. I will like to recommend you to restart your tracker, change the setting again to Auto ans sync your tracker so the changes take effect. 

 

Let me know how it goes! Woman Happy

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The issue is the auto option I have turned it the option to on and that has fixed it but I don’t know why the problem only happens on auto and I’ve restarted it multiple times and synced it still no fix so as of now I have just left it on the “on” switch

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