Announcement

Collapse
No announcement yet.

Bbshd failures and troubleshooting

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • jeffeby
    commented on 's reply
    The new motor in and it is back to running like when the original was first installed. Big shout out to everybody for all your help and support, especially JPLabs. Hoping that the new motor will last more than 50 miles this time. The old one is sitting on my bench waiting for me to find the time for a thorough postmortem. Will update if I can ever isolate the issue.

  • commuter ebikes
    commented on 's reply
    If you have spare controllers known to work, keeping those as spares for later down the road will have great value. You could also sell them on eBay; somebody would be very excited to buy a functional controller.

  • JPLabs
    replied
    OK , fair enough.

    Thanks.

    Leave a comment:


  • jeffeby
    commented on 's reply
    Since I had already removed the motor/controller and hooked up to a working harness/display and battery on a different bike before ordering a new controller, I hardly think that I haven't been thorough. Sorry you thought I was being rude. I thought I was just being critical. There is no shame in being wrong and I am not blaming you for my predicament.
    Last edited by jeffeby; 07-18-2018, 01:38 PM.

  • JPLabs
    commented on 's reply
    Jeffby, did you check the wiring harness?

    $100 for a controller is not burning your money. If you can't or don't care to diagnose exact failures, spare parts are worth their value, for sure. If you think it's worthless, I'll happily take it off your hands for shipping costs.

    The only thing left isn't the motor, unless you left a lot out of your story. You think examining all the connections means your harness is proven fine, for example.

    Sure, OK, you got this. Might as well get rude to those trying to help you now, I'm sure you can handle it alone from here out.

    It's rude to beat up on Luna for trying to help you, and to blame anybody but yourself for not finding the problem, at this point.
    Last edited by JPLabs; 07-18-2018, 09:45 AM.

  • jeffeby
    commented on 's reply
    Replaced the controller and there is no change in the behavior of my BBSHD. I have gone through and checked all connections, removed the additional stuff (ebrakes, gearsensor, etc) and gone through all of the posts in the "BBSHD Troubleshooting Random issues on unit still moving" string. Another $100 that I might as well have lit on fire. The only thing left is the motor. But it can't be the motor. "It is not the motor." An emphatic statement that is wrong is just lousy advice.
    I guess I will order a bare motor. That will give me a total of three working controllers. How useful. I guess that is better that throwing the whole thing in a dumpster.

  • jeffeby
    commented on 's reply
    Thanks. I closely examined all of the connections when I took it apart to check the nylon gear so I will give swapping out the controller a try.

  • paxtana
    commented on 's reply
    It's not the motor. DC motors are fairly simple things, unless there's something mechanical like a bad bearing or it was smoked from lugging it, or it was tossed in the ocean or something like that, motor should be fine. And honestly even the controller may be fine, like I said there's things to check on that link. Even the video showing how a loose phase wire between controller and motor can cause this intermittent functionality and might only require unplugging phase and plugging back in. In any case it never hurts to have spare parts sitting around, great for troubleshooting.

  • jeffeby
    commented on 's reply
    I guess the question is, "Is it the motor or is it the controller?" If I buy a new controller and it ends up being the motor, then I will have to buy a new BBSHD Bare bones and end up with one motor and three controllers. Or I could just buy a Bare Bones from the start and be done with it. Not a great place to be when the old one has less than 20 miles on it. Are there any diagnostics that can be done on the controller?

  • paxtana
    commented on 's reply
    Sounds like time to start swapping parts then.

  • jeffeby
    commented on 's reply
    After removing all of the additional stuff (throttle, brakes, gear sensor, speedometer) and only having the display connected it still acts the same. Unfortunately, no error messages have been triggered.

  • paxtana
    commented on 's reply
    That's a good step towards troubleshooting. Try out some of the other steps here as well
    https://electricbike.com/forum/forum...t-still-moving

    Paying particular attention to removing any additional stuff you may have attached whether that is ebrakes or gearsensor, and seeing if you have (!) on your display.

  • jeffeby
    commented on 's reply
    Definitely not a battery issue.Tried it with a friend's 52v triangle battery exactly like mine with the same result. The motor usually tries to turn when I use the throttle, sometimes making it a half turn before it stops. Occasionally it will spin fast like it should for several revolutions before it dies. In assist mode for the most part you can barely tell there is a motor, sporadically kicking in for brief moments.

  • paxtana
    commented on 's reply
    Possibly a high resistance connection or the controller is going bad. If you are using a hardcase pack check the contacts between case and cradle. You can also bypass battery using charger as power source while testing on a stand to see if problem persists.

  • jeffeby
    replied
    Something has gone wrong with my BBSHD after a couple of weeks of riding. Almost a total loss of power. The Power indicator fluctuates wildly. There is quite a bit of drag when I walk the bike in reverse so I thought Nylon Reduction Gear had just gone bad. I ordered a new one and after waiting for a month for it to come off of Backorder I took the motor apart to find that the Nylon Gear looked just fine. Replaced it and regreased anyway, put it back together and it still acts the same way. Any ideas?

    Leave a comment:

Working...
X