REPAIR PROCEDURES
AB18EJ&18HJ Maintenance Manual 6-25 © Oct 2020
Fault
code
Description
Cause Check
4. Replace the contactor.
Note:The pins #4 of the 35–pin controller
connector is for driver 3 output.
output of FL motor
controller
0233
Open/short-circuited
solenoid brake/coil 3
output of FR motor
controller
0333
Open/short-circuited
solenoid brake/coil 3
output of RL motor
controller
0433
Open/short-circuited
solenoid brake/coil 3
output of RR motor
controller
0034
Open/short-circuited coil 4
output of pump motor
controller
1. Open/short-circuited
coil 4;
2. Stained/damaged/
broken wiring
1. Ensure the correct wiring and the pins free
of stains or damage;
2. Monitor output signal via monitor menu/
outputs menu/Driver 4PWM to check
whether there is output control signal;
3. Check the driver coil.
0134
Open/short-circuited coil 4
output of FL motor
controller
0234
Open/short-circuited coil 4
output of FR motor
controller
0334
Open/short-circuited coil 4
output of RL motor
controller
0434
Open/short-circuited coil 4
output of RR motor
controller
0035
Proportional drive error of
pump motor controller
1. Open/short-circuited
loading device;
2. Stained/damaged/
broken wiring;
3. Improper wiring
1. Ensure the correct wiring and the pins free
of stains or damage;
2. Monitor output signal via monitor menu/
outputs menu/PD PWM to check whether
there is output control signal;
3. Check the loading devices, such as the
driver coil, for damage.
0135
Proportional drive error of
FL motor controller
0235
Proportional drive error of
FR motor controller
0335
Proportional drive error of
RL motor controller
0435
Proportional drive error of
RR motor controller
0036
Encoder error of pump
motor controller
1. Failed power supply of
encoder;
2. Damaged encoder;
3. Improper wiring.
1. Check the encoder power supply;
2. Check the encoder setup via programme/
motor menu/ encoder steps for the pulse
count;
3. Check the encoder feedback speed signals
via monitor/motor menu/motor speed A/B;
4. If the checks above fail to discover the
problem, replace the encoder.
0136
Encoder error of FL motor
controller
0236
Encoder error of FR motor
controller
0336
Encoder error of RL motor
controller