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  1. Y

    Hub motor stopped working. Help!

    Yes, I did follow the directions in the link that you give me: https://www.ebikes.ca/documents/HallSensorTestingFinal.pdf. The phase wires are 3 thick wires that are separately connected to the motor unlike the hall sensors that are connected through a single connector. Have I got the difference...
  2. Y

    Hub motor stopped working. Help!

  3. Y

    Hub motor stopped working. Help!

    I checked the phase wires with a multimeter. There is continuity between the phase wires (low resistance). When two phase wires are touching there is significant drag when rotated backwards, I also checked the voltage on the phase wires (between Black-Yellow, Black-Green and Black-Blue. The...
  4. Y

    Hub motor stopped working. Help!

    Thank you all for your help, I finally got to work on my hub motor. The gear teeth on the plastic gears were completely worn out as can be seen in the attached photo. I replaced the gears and clutch and put everything back together and it seemed to work well. Today as I rode my bike to work...
  5. Y

    Hub motor stopped working. Help!

    The last time I opened the motor, I did not know how to go about it and struggled as I did not have the right tools. This time I have ordered a gear puller and circlip pliers. Would I need anything else. Is there a video on how to open the motor?
  6. Y

    Hub motor stopped working. Help!

    When I give it throttle, this is how the motor sounds: https://photos.app.goo.gl/WsLtT3F32cz5pbSL7 . The wheel does not spin. Just before the present situation, there was crunchy noise. I was going on a rough road and though it was road noise for a moment. That is when I stopped to investigate...
  7. Y

    Hub motor stopped working. Help!

    Yes, the 6000 miles is all in one year. I commute everyday 18 miles each way. I have hardly used my car in the last over 1 1/2 years. Sometimes I take the bus. Yes, somewhat sounds like that. Here is how it sounds like: https://photos.app.goo.gl/WsLtT3F32cz5pbSL7 I put the bike upside down...
  8. Y

    Hub motor stopped working. Help!

    I checked the hall sensors. It seems they are working. I connected the multimeter between black to yellow, green and blue wires while spinning the wheel forward and the voltage varies between 0 to 5V in all cases. I checked all the wires. Found the yellow wire on the hall sensor connector was...
  9. Y

    Hub motor stopped working. Help!

    I looked at all wires and nothing was obviously frayed. There’s no noise when motor is spun with no power. I have not changed anything over nearly a year. I had replaced motor last year under warranty from EM3ev. The noise sounds like a Tesla car passing by. In fact when I first heard the noise...
  10. Y

    Hub motor stopped working. Help!

    Yesterday wile riding home from work my bike hub motor started making noise. I stopped to check. All the wires were in place. Checked the throttle. The motor ran a bit and stopped entirely. Now it makes just a noise and does not run at all either in pedal assist or throttle. Needless to say, I...
  11. Y

    MAC motor hub not engaging

    Over the weekend I was able to unscrew the freewheel using the vice. I soaked it overnight in degreaser solution and cleaned it. I found that the clicking came back. But, sometimes it is still gets unstuck, especially when the sprocket is tilted. I have now put it back on my bike. The sprocket...
  12. Y

    MAC motor hub not engaging

    Can I use WD40 lubricant which I have instead of PB Blaster? Otherwise I will pick one up from the hardware store. If this can unstick the flywheel it would be great. Thank you very much for all your help.
  13. Y

    MAC motor hub not engaging

    Looks like a great idea! I have a vice and will try it tonight and let you know.
  14. Y

    MAC motor hub not engaging

    I tried to remove the sprocket with the removal tool. I tried very hard but it looks like the threads are completely stuck as I could not even budge it try as I may. Is there a way to loosen it up to remove it? Will soaking the inside of the sprocket where I insert the removal tool with...
  15. Y

    MAC motor hub not engaging

    Thank you for your advice. The sprocket is a screw type and not cassette version. I think I have the removal tool. I will remove the sprocket and see if the pawls are broken. If they are, I can order a replacement online. Thank you for saving me the effort of opening the motor itself. I will...
  16. Y

    MAC motor hub not engaging

    My (MAC) hub motor suddenly stopped engaging with the bike gear sprocket. The motor runs with throttle and sometimes the gear sprocket engages with the hub when I can pedal power the bike. Otherwise, when I pedal, the gear sprocket does not engage at all. I used the throttle mostly and used...
  17. Y

    Cycleanalyst Wiring troubleshoot

    Thank you very much for the detailed troubleshooting steps you provided. I had also written to Justin of Grin Technologies about this problem. He suggested looking if I have connected throttle to the white Aux plug rather than the black Throttle plug. Indeed, that was what I had done. By...
  18. Y

    Cycleanalyst Wiring troubleshoot

    I accidentally yanked some wires out of the Cycle Analyst. I opened it and soldered to reconnect 2 wires (yellow and red) that were broken. When I opened the cycle analyst I also broke the 3 wire connector that goes to the LCD panel. I could glue it back. Now, when I put everything back...
  19. Y

    PAS does not fit

    I wanted to come back and post how my issue was resolved by Justin from Grin Technologies. This youtube video he sent me helped resolve the issue: https://www.youtube.com/watch?v=W_hnUzM5ZuQ. My PAS controller was working correctly. Only the watts limit feedback gain was tuned incorrectly. The...
  20. Y

    PAS does not fit

    I was sure the PAS sensor would be digital. Just wanted to confirm if I am missing something. Thanks for the clarification. I just emailed to ebikes.ca. I hope they will be able to help. Thank you again for all your help. I very much appreciate it.
  21. Y

    PAS does not fit

    I changed the start/stop thresholds to get a quicker response when I have stopped at a red light. I will restore to the defaults as you suggest and make small changes to see if that helps. I looked at the magnet disc and the sensor more closely. The two halves of the magnet disc are at about...
  22. Y

    PAS does not fit

    Firmware Version is 3.0. Start and Stop thresholds are each 5 RPM. Do I need a firmware update?
  23. Y

    PAS does not fit

    Thank you for your suggestion. I just checked the two arrows change direction when I pedal FWD (or even REVERSE). I have set PAS->SignlType to '2-wire'. The magnet disc is mounted on the left crank (not on the chain side). So, I did not reverse the PAS->DirPlrty setting. Is there anything...
  24. Y

    PAS does not fit

    I was able to install the PAS magnet disc by cutting off the "fingers" and gluing it to the left crank. Now I am able to get pedal assistance as I pedal. However, the motor is very jerky. It feels like the motor is turning on and off every rotation of the crank. I have checked the LED on the PAS...
  25. Y

    PAS does not fit

    Thanks for your suggestion. I had referenced a wrong sensor in my OP. The actual sensor I have is CA3 Cycle Analyst PAS Speed Sensor (see attached stock picture) which can be mounted on either right or left crank. I will try to trim the thickness of the sensor and see if it fits as you suggest...
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