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    replacing bafang bbs hd hall sensors

    thanks for the replies, will need to check later but from memory the hall sensors were wedged in tight down side of motor, and we had to prise the board up which they're attached to, which caused from memory at least 2 of the sensors to become detached. as you say, doesn't look like rocket...
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    replacing bafang bbs hd hall sensors

    hi all, my first bafang motor showed the error code for hall sensors (think it was 8, from memory/google). stripped the motor and hall sensors were really tight in their grooves, had to prise the board off that they're attached to, which broke some of the connections to the hall sensors. A...
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    BBS HD power cutting off and on

    thanks all for the input, and it now appears to be fixed. i am one of those lucky few with a spare controller, so i swapped it and it's now done approx 30 miles over 6 or 7 journeys and hasn't missed a beat. interestingly, i'm guessing something in the controller has maybe been on it's way out...
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    BBS HD power cutting off and on

    thanks, throttle also causes engine to cut off and on (usually just gives quick 1/2 second burst of power then nothing), not quite sure how to remove PAS from suspect list as it also causes the issue ? my previous motor had hall sensors fault, but it actually showed as an error code, not sure...
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    BBS HD power cutting off and on

    thanks, should have said i've disconnected throttle, gear change sensor and brake sensor/s one at a time, and the issue was still there using PAS only with no external sensors connected. cheers,
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    BBS HD power cutting off and on

    Hi, so are you suggesting it could well be the battery? I can try charging it and see if it behaves when fully charged. Main reason I didn't think it was battery is its a decent quality branded cell battery, and also that the display remains solid, doesn't flicker, doesn't power cycle etc...
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    BBS HD power cutting off and on

    thanks for that, i changed back to original display and the fault was still there, tjhen back to new display and still had the issue. so not sure if just hit lucky for initial test with new display/button pod, weird though that it worked perfectly for a ten minute test where i was off and on...
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    BBS HD power cutting off and on

    hi all, so has anyone come across a wonky controller which doesn't show error codes ? looks easy enough to replace and i do have a spare, but would be good to know before spending the time if this is the likely issue, considering i've replace everything else outwith the motor. cheers,
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    BBS HD power cutting off and on

    Thanks for replies, no error codes at all. Have literally replaced or unplugged everything apart from battery and motor. The battery was quite a dear one and I would hope its not that, but wouldn't rule it out. I do have a spare motor which had faulty Hall sensors, so could conceivably swap...
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    BBS HD power cutting off and on

    hi all, my bike has now become unuseable, sadly. motor has only done about 400 miles. issue started with the PAS level changing by itself, especially (and probably exclusively) when using the throttle. what then started happening is the motor cutting off and on, sometimes only very briefly...
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    Bafang BBS HD PAS fault

    good suggestions, thank you, will have a look later to see if the button unit can come apart easily. the wire running from it to the screen, i've normally had a cable tie round it, or light mount (tight), so maybe internal wire/s crushed, causing intermittant issue. so the wire itself is...
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    Bafang BBS HD PAS fault

    hi, thanks for the replies. i thought at first it was me hitting buttons by accident, but deffo majority of the times my hands haven't moved off the grips. i've also physically seen the PAS level change on my display without me pressing any buttons. the fact that i had same issue (not as bad...
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    Bafang BBS HD PAS fault

    hi all, i have a strange thing which happens pretty much most journeys on my BBS HD, whereby the PAS level changes by itself. it can go up or down, and it often seems to happen when pulling away using the throttle, though not always. doesn't seem to necessarily happen going over bumps, either. i...