This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Speed sensor connectivity problems

Former Member
Former Member
I have some weird problems with connectivity of speed sensor. Few month ago i got notification on the unit screen about speed sensor battery being low. So i bought new battery and swapped it. Ever sins i couldn't get my speed sensor working.
Issue is following - when i inserted new battery and closed the lid i saw red and green leds going on and of. According to the documentation it was as intended. Unit has picked up signal from sensor, so far so good... but every time i would turn of unit and back on again sensor was (is) not being found any more.
I have tried to remove sensor from the list and adding it again. Adding goes just fine, and when i press start button and spin the wheel unit notifies me about "detected movement". Next day when i'm about to go on "real" ride...sensor is not detected - little icon in the top left corner keeps blinking.
Anyone has any idea what's wrong here?
  • Is the sensor detected after you start your ride?
  • Former Member
    0 Former Member over 6 years ago
    Is the sensor detected after you start your ride?


    no. to make sensor "re detected" i alway have to pull battery out and re insert it. even then it is not on the first try ;-(
  • Former Member
    0 Former Member over 5 years ago

    I have exactly the same issue..

    Did you find any solution?

  • Former Member
    0 Former Member over 5 years ago

    Another with a similar problem. Went to use the speed sensor, wouldn't connect.

    New battery fitted and the unit will not wake up from turning on the wheel.

    Likewise, i have to remove the battery, replace it, then it pairs. Not an ideal scenario.

  • Former Member
    0 Former Member over 4 years ago

    I had to reboot my Garmin 520. Since then the cadence sensor won't be pikced up by the head unit. I've changed the batteries on the unit on the hub and the crank arm.

    How do i fix this???