CSC RX1E - Common Fault Diagnosis and Troubleshooting

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Common Fault Diagnosis and Troubleshooting Methods
I. Fault: motor does not turn.
Fault causes and solutions:
1. Fault cause: the battery voltage is too low, causing the controller to be under-voltage protected;
Solution: charge the battery.
2. Fault cause: the battery voltage is too high, which causes the controller to be in overvoltage protection state;
Solutions: a. check the reason of high battery voltage and troubleshooting; b. replace the battery
3. Fault cause: speed control handle malfunctioning;
Solution: replace speed control handle.
4. Fault cause: brake failure causes the controller to be in brake protection state;
Solutions: check whether the brake switch and brake light are short-circuited. If they are short-circuited, please replace the
corresponding parts.
5. Fault cause: the side bracket is not retracted or the side bracket switch is short-circuited, resulting in the side bracket being in a
protected state;
Solution: a. retract the side support; b. or replace the side bracket switch.
6. Fault cause: motor phase line short circuit or open circuit, resulting in controller protection;
Solution: repair or replace the motor assembly.
II. Fault: the motor can operate normally, but the speed is too slow.
1. Fault cause: low battery voltage;
Solution: measure the battery voltage with a multimeter. If the voltage is too low, recharge the battery immediately.
2. Fault cause: the gear is at low speed;
Solution: adjust the gear to high gear.
3. Fault cause: the handle is faulty, and its signal output voltage is too low;
Solution: replace speed control handle.
III. Fault: the motor can rotate by twisting the speed knob, but it stops again after a few seconds and there are repeated failures.
1. Fault cause: this fault is mostly caused by low battery voltage of electric vehicles. The battery has a floating phenomenon, that
is, the battery voltage is relatively high when no load is applied, and the battery voltage drops sharply after the load is applied,
which will be lower than the under-voltage protection value, causing the controller to under-voltage protection and stop the
motor drive output.
Solution: measure the battery voltage with a multimeter. If the voltage is too low, recharge the battery immediately.
IV. Fault: the noise and current of ordinary speed riding motor are relatively large.
1. Fault cause: the controller MOS tube is damaged;
Maintenance
Common Fault
Troubleshooting