For example, the digit code “1, 4”——60—
CAPACITOR CHARGE, will be displayed
as shown in the image.
Error mes-
sage
LED flash-
es (1) time
LED flash-
es (2)
times
Fault Error diagnosis
THERMAL
FAULT
11
Over/under tem-
perature cut
(1) temperature is under 80°C or
below -10°C;
(2) Vehicle is over-loaded;
(3) Operating in harsh environment;
(4) Electromagnetic brake is not re-
leasing normally
THROTTLE
FAULT
12
Potentiometer slip-
page or low volt-
age beyond range
(1) Accelerator input terminal open
circuit or short circuit;
(2) Accelerator potentiometer fail-
ure;
(3) Incorrect accelerator type selec-
ted
SPEED POT
FAULT
11
Speed limit potenti-
ometer malfunction
(1) Speed limit potentiometer open
circuit or short circuit;
(2) Speed limit potentiometer open
circuit
UNDER-
VOLTAGE
FAULT
14
Cell voltage too
low
(1) Cell voltage <17 V;
(2) Poor battery or control unit con-
nection
OVERVOLT-
AGE FAULT
15
Cell voltage too
high
(1) Cell voltage >31 V;
(2) Battery charger is still connec-
ted when the vehicle is running;
(3) Poor battery contact
MAIN OFF
FAULT
21
Main contactor coil
drive “closed” mal-
function
(1) The main contactor coil was ac-
tivated in error
(not used) 2 2
MAIN FAULT 2 3
Main contactor
malfunction
(1) The main contactor is stuck or
there is an open circuit;
(2) Main contactor coil drive error
MAIN ON
FAULT
24
Main contactor coil
drive “closed” mal-
function
(1) The main contactor coil was de-
activated in error
(not used) 2 5
WIRING
FAULT
31
HPD malfunction
time exceeds 10
seconds
(1) Incorrect operation of the accel-
erator;
(2) Accelerator terminal or the ac-
celerator
5
Maintenance
Troubleshooting
70 Operating Instructions - 1131 801 1601 EN - 12/2021 - 04
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