7.Explanation of error codes
21
Error
number
The reason
Error name
Troubleshooting method
27
Battery heartbeat error
Change the battery
The battery heartbeat packet cannot
receive data, or the battery user code
does not match the central control
user code
29
Overvoltage
The battery voltage exceeds 60V
1:Change a new battery to check if the
battery is available.
2:Change a new controller to check if the
controller is available
30
Torque sensor failure
Loss of torque sensor signal
1:Change the torque sensor
2:Change the controller
31
Controller overheating Controller temperature reaches the
protection value
1:If the Error shows when you are riding,
the system needs to cool down.
Don't worry.
2:If the Error shows when the bike
doesn't work too much, update the
software of the controller to check the
latest software.
3:Change the controller to check the
controller is available.
1
Recovered When the output current
of the controller is less than MAX
current.
2
Low-voltage
protection
1:The fault will be relieved after
charging.
2:Change the battery.
1:Please check the cable connector,
make sure that they connect properly
2:Change the motor extension cable to
check If the cable is available
3:Change the display to check the
display is available
4:Change the motor to check the motor
is available
5:Change the controller to check the
motor is available
3
Motor phase wire
failure
7
Motor hall signal
abnormity
Hall line sequence is wrong or
poorly connected
1:Please check the cable connector,
make sure that they connect properly
2:Change the motor extension cable to
check If the cable is available
3:Change the display to check the
display is available
4:Change the motor to check the
motor is available
5:Change the controller to check the
motor is available
The instantaneous output current
of the controller exceeds the
current limit range
Battery voltage lower than 30±1 V
Motor phase line short circuit
when unlocking
8
Motor Over
temperature
protection
Motor temperature higher than
normal working temperature
Overcurrent
Protection
21
BMS hardware fault
information alarm
BMS damaged
Change the battery
22
23
BMS level 1 fault
information alarm
It appears when the battery discharge
exceeds 9s~11s with 22A~ 28A current.
Back to normal after staying still for
55s~65s
BMS lever 2 fault
information alarm
It appears when the battery discharge
exceeds 1000ms~4000ms with
35A~ 45A current.
Back to normal after staying still for
55s~65s
24
BMS lever 3 fault
information alarm
Appears when the battery discharge
exceeds 250ms~350ms with 55A~ 65A
current
1:Recovery after charging
2:Recovery after power cut off
16
BMS firmware missing Battery program upgrade failed
1: Re-upgrade battery program
2: Change the battery
11
Communication failure
between
instrument and
electronic controller
Instrument problem or poorly
connector for the communication
signal wire
1:Check the controller connection, make
sure that they connect properly
2:Check the display connection, make
sure that they connect properly
3:Change the display
4:Change the controller
1.Stop riding and cool down, wait for the
error to be removed by itself
2.Change the motor
