King-Meter JK-LCD - Error Code Troubleshooting

- 8 -
Power showing
7.8 Error code
When the system encounters an error, the display would
show the relevant error code. Only once the problem/s has
been resolved will the display return to normal functionality.
The e-Bike will cease functioning so long as an error code is
shown.
Error code showing
E
rror
code
meaning solutions
21
Abnormal Current
C
heck if the phase of motor is short
circuit
ing
22
Abnormal Throttle
C
heck
that
the throttle is not in it’s
active state
23
No-phase state
C
heck if the phase
wire
is normal
Check if the cable is firmly connected
with controllers