Caseman Posted July 18, 2023 Share Posted July 18, 2023 I just bought a EXN HS 1 week ago When not on it, it powers back a slight bit and if you let it go it speeds up a bit, not sure if normal, rides fine, tried calibrating a couple time once at 3degrees forward angle not making difference. If you let it go on flat ground starts going ~13km/h backwards,when stopped the motor is always powering it back because you can hear it. Can make video and upload if needed Thanks Quote Link to comment Share on other sites More sharing options...
UniVehje Posted July 18, 2023 Share Posted July 18, 2023 Did you buy it used? Sounds like it needs calibration so that the pedals are level but you seem to have done that already. So there was no difference if you had the pedals level? This symptom would occur if the wheel is not level. One side would be heavier and the effect is the same as someone leaning on the wheel. If it's not a calibration issue, then the wheel must have back side heavier than front or there's something wrong with the control board. Is there any angle that makes it stay in place? Quote Link to comment Share on other sites More sharing options...
alcatraz Posted July 19, 2023 Share Posted July 19, 2023 Sounds like a failed calibration. Did it ride fine until you began calibrating it? Also sounds like the center of gravity is off. Maybe it's rear heavy. Is it missing the front pack? Quote Link to comment Share on other sites More sharing options...
Magman116 Posted July 19, 2023 Share Posted July 19, 2023 I had the same issue with my RS19, but was able to finally recalibrate it and all was well again. For some reason, my RS19 didn't like to calibration, but I kept at it and it took. Now I don't mess with it. Quote Link to comment Share on other sites More sharing options...
Caseman Posted July 19, 2023 Author Share Posted July 19, 2023 Yes I bought it used with 725kms, I have tried different angles but might try more forward angle see if it stays but that wouldn't be ideal as pedals would be forward, Alcatraz, its always riding fine just that issue with powering back also believe have to torque it a little bit more going forward to counteract. But runs fine, shouldn't be missing front pack Magman116, I guess will try calibration a bit more but it seems to calibrate fine stays at angle which I set it to. I will make video tomorrow to show Thanks for replys 1 Quote Link to comment Share on other sites More sharing options...
gon2fast Posted July 19, 2023 Share Posted July 19, 2023 The internal weight of the EXn is not balanced so if the pedals are calibrated to a flat or slightly upright position the wheel will creep. I am not sure that there is a solution for this other than adding weight to the front end of the wheel. I usually have my foot or place the shopping basket at the rear of the wheel so it does not creep. 1 Quote Link to comment Share on other sites More sharing options...
Caseman Posted July 23, 2023 Author Share Posted July 23, 2023 Just saw on the exn Facebook group another guy was posting same thing and apparently its normal for exn 1 Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted July 23, 2023 Share Posted July 23, 2023 53 minutes ago, Caseman said: Just saw on the exn Facebook group another guy was posting same thing and apparently its normal for exn On 7/19/2023 at 5:36 PM, gon2fast said: The internal weight of the EXn is not balanced so if the pedals are calibrated to a flat or slightly upright position the wheel will creep. I am not sure that there is a solution for this other than adding weight to the front end of the wheel. I usually have my foot or place the shopping basket at the rear of the wheel so it does not creep. Yep, that's it. The EXN has three battery packs. Two on the left side, and one on the right back side (the right front space is where the board sits). So it will naturally lean backwards and therefore creep a little backwards. No cause for concern, and not really an issue imho. See here for the internals, for example (timecoded 1:48): Quote Link to comment Share on other sites More sharing options...
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