850C Display Error Codes & Problems
Large color display made for Bafang motor kits, with buttons on the display itself.
About the 850C
- When there's a fault, a warning icon appears and the code shows in the logo position on screen. source
- The 850C can show your last 10 error codes. It's in the advanced settings menu, which is password-protected. See your manual or ask your dealer. source
- The brake signal (code 03 in the manual) doesn't show as an error on the 850C. source
2 Pick the code on your screen
850C (Bafang) code list, from the manual. 19 codes.
- 04Throttle not back to rest
- 05Throttle fault
- 06Battery voltage too low
- 07Overvoltage protection
- 08Motor Hall sensor fault
- 09Motor phase wire fault
- 10Controller too hot
- 11Motor too hot
- 12Current sensor fault
- 13Battery temperature sensor error
- 14Motor temperature sensor error
- 15Controller temperature sensor error
- 21Speed sensor fault
- 22Battery (BMS) communication error
- 23Headlight fault
- 24Headlight sensor error
- 25Torque sensor fault
- 26Torque sensor speed signal fault
- 30Communication error
No code? Pick your problem
- No powerDisplay won't turn on
- Cuts out on hillsLoses power climbing
- Throttle not workingPedal assist works, throttle doesn't
- Pedal assist not workingMotor doesn't help when pedaling
- Battery not chargingCharger light or battery won't charge
- Speed shows 0Speedometer wrong or stuck at 0
- Motor stutters or jerksJerky, grinding or juddering motor
- Battery dies fastRange has dropped