Check your display first. These are the codes Bafang's own displays use. Many bikes with Bafang or Bafang-style motors have a display made by another company, and its numbers can mean something different. If your display isn't a Bafang one, use that display's manual, or send us a photo.
- 04Throttle fault
- 4CBattery cells out of balance
- 05Throttle not back in position
- 07Overvoltage protection
- 08Motor hall sensor error
- 09Motor phase winding fault
- 10Motor too hot
- 11Motor temperature sensor error
- 12Controller current sensor error
- 13Battery temperature sensor error
- 14Controller too hot
- 15Controller temperature sensor error
- 21Speed sensor error
- 25Torque signal error
- 26Torque sensor speed signal error
- 27Controller overcurrent
- 28Warning: torque sensor start-up
- 30Communication problem
- 33Brake signal error
- 3515V detection circuit fault
- 36Keypad detection circuit fault
- 37Controller watchdog fault
- 38Sensor watchdog fault
- 41Battery voltage too high
- 42Battery voltage too low
- 44Battery cell voltage too high
- 45Battery too hot
- 46Battery too cold
- 47Battery charge too high
- 48Battery charge too low
- 49Battery cell voltage too low
- 61Gear shift detection fault
- 62Electronic derailleur stuck
- 71Electronic lock jammed
- 81Bluetooth module error
We haven't verified that code yet, so we won't guess. Check Bafang's service FAQ and display manuals, or send us a photo of the display.
We're adding codes as we check each one against Bafang's own pages. Not listed? Bafang's service FAQ and display manuals has the full list.