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power meter problem

3519971
over 5 years ago

I just changed battery in my Specialized power crank, with a Garmin Edge 520. Never had any problem with it. Now I get cadence readout but no wattage. I've tried turning unit on and off, taking battery out and replacing it. Thoughts? 

  • 0 over 5 years ago

    I don't know if you need to perform a calibration on that power meter after replacing the batteries.

  • 0 over 5 years ago

    I do have the same problem. I changed the battery in my SRM and now I have only cadence readout but no wattage. I already calibrated the power meter, changed the battery and finally restore the factory profile of my Garmin Edge 520 but nothing changed.

  • 0 over 5 years ago

    I have the same issue with my Garmin 520 where it doesn't show the power (from a stages crank) during my activity however provides the detail at the end in my workout summary. I train to power so super frustrating.  

  • 0 over 5 years ago

    My thought is the your power meter has failed. With about half the power meter failures I had over the last 15 years the cadence would still work, but the power was 0 or power would be erratically appearing on the display. My question is is the power you see 0 or - - -. Becauce if is 0, that means the crank is transmitting power. But because the PM is not working properly that power is 0.

  • 0 over 5 years ago in reply to af0002

    Thanks, all. Didn't function but then kicked in. Twenty miles today and it worked normally. Not sure what the problem was. Hope it isn't power meter. Specialized crank arm, only a year old.