Jul 20th 2026
Light Bee Diagnostic Codes
Light Bee diagnostic identification chart
（2019.02.22）
LED
Diagnostic code
Number of flash times
Shown on instrument
1
1
normal operation condition
----
----
2
2
controller power tube malfunction
Er-208
turn off power switch and turn on again
3
3
controller hardware over current protection
Er-207
leave throttle to idle position and twist throttle again
4
4
controller software over current protection
Er-206
auto recovery
5
5
motor main cable phase malfunction
Er-205
turn off power switch and turn on again
6
6
motor Hoare coil malfunction
Er-204
turn off power switch and turn on again
7
7
motor stall protection
----
leave throttle to idle position and twist throttle again
8
8
controller level. 1 over temperature protection
Er-202
turn off power switch and turn on again
9
9
controller level. 2 over temperature protection
Er-201
turn off power switch and turn on again
10
10
motor level. 1 over temperature protection
Er-216
turn off power switch and turn on again
11
11
motor level. 2 over temperature protection
Er-215
turn off power switch and turn on again
12
12
battery level.2 over voltage protction
----
leave throttle to idle position and twist throttle again
13
13
battery level.2 low voltage protction
Er-213
leave throttle to idle position and twist throttle again
14
14
throttle rush-out protection
Er-212
turn off power switch and turn on again
15
15
Throttle to controller signal wire short-circuit
Er-211
turn off power switch and turn on again
16
16
brake protection
----
auto recovery
17
21
controller current sampling failure
Er-209
turn off power switch and turn on again
18
22
side stand protection
Er-224
auto recovery
19
23
tilt swith protection
Er-223
leave throttle to idle position and twist throttle again
20
24
key switch port power failure protection
Er-222
turn off power switch and turn on again
21
25
battery low voltage protection (level. 1)
Er-221
turn off power switch and turn on again
22
27
CAN communication malfunction
ER 217
auto recovery
23
----
communication malfunction(
ER 002
auto recovery
24
28
battery premier discharge(voltage) protection(level. 2)
Er-105
charging battery to recovery
25
29
battery discharge low temperature protection(level. 2)
Er-114
turn off power switch and turn on again
26
30
battery over temperature protection(level. 1)
Er-219
turn off power switch and turn on again
27
31
controller and battery 485 communication no response
auto recovery
28
32
controller and battery 485 communication unmatch
auto recovery
29
33
battery SOC low capacity protection
Er-218
turn off power switch and turn on again
30
17
motor temperature sensor malfunction
Er-200
auto recovery
31
18
battery BMS discharging MOS malfunction
Er-107
recovery after fault removal
32
18
battery BMS charging MOS malfunction
Er-106
recovery after fault removal
33
19
battery BMS MOS temperature sensor malfunction
Er-102
auto recovery
34
19
battery cell temperature sensor malfunction
----
auto recovery
35
20
battery discharge over temperature protection(level. 2)
Er-116
temperature drop to working temperature to recovery
36
26
battery cell charging over temperature protection(level. 2)
----
temperature drop to working temperature to recovery
37
34
battery cell charging low temperature protection(level. 2)
----
temperature rise to working temperature to recovery
38
20
battery discharging MOS over temperature protection(level. 2)
----
temperature drop to working temperature to recovery
39
26
battery charging MOS over temperature protection(level. 2)
----
temperature drop to working temperature to recovery
40
20
battery BMS soft start circuit over temperature protection(level. 2)
----
temperature drop to working temperature to recovery
41
35
battery over current protection (level.3)
----
auto recovery
42
----
battery BMS discharge MOS over temperature protection(level. 1)
Er-120
temperature drop to working temperature to recovery
43
----
battery premier over discharge(voltage) protection(level. 1)
Er-119
auto recovery
44
----
battery discharge low temperature protection(level. 1)
Er-118
temperature rise to working temperature to recovery
45
----
battery discharge over temperature protection(level. 1)
Er-117
temperature drop to working temperature to recovery