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er30 code when battery has been removed

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    er30 code when battery has been removed

    Hello All,
    My BBSO2 gives me the er30 code whenever I remove the 48 Volt Joysis battery and then reconnect it, Bike works with no display or settings for a few on off cycles and then returns to normal indeffinatly until I remove the battery again. Anyone see this behavior before?

    #2
    New update on this problem. Now the Bafang C961 gives me the error 30 when it is colder than about 40F degrees same symptoms has before.I warm up the display and error goes away. Bad display?

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      #3
      So I bought a Luna mini 500 for this system and have not had any problems since. I think it was a bad C961 display that came with the kit from Bafang Direct.

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