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X8 X7 X9 Electric Scooter Troubleshooting
X7 X8 Electric Scooter Error Codes
| Fault Description | Analysis | Solutions | |
| 1 | Abnormal or fault code display on dashboard | ||
| 2 | Refer to table “Fault Code and Stettings” | 1. Check all corresponding circuit and connectors in good condition 2. Replace related parts and pick up the defective ones | |
| 3 | “B” displayed on dashboard | Accelerator connection failure or accelerator fault | Replace the accelerator on condition that circuit connectors work in normal |
| 4 | “C” or “C0” or “EC” displayed on dashboard | Motor Hall fault or connection failure | Replace the motor on condition that circuit connectors work in normal |
| 5 | “F0” displayed and not available in riding | Controller in high temperature protection | reuse after rest |
| 6 | Fault “E1” and “E7” displayed and motor stops working | E1: Dashboard receiving controller data communication failure E7: Controller receiving dashboard data communication failure | 1. Check communication connection 2. Separate communication line and motor phase line |
| 7 | Double image or flicker displayed on dashboard | Happens after APP lock while stepping on the accelerator without response and pushing with phone vibrates | Unlock App on phone |
| 8 | Wrong speed displayed on dashboard | 1. Speed displayed was calculated by wheel diameter and rotate speed. Wheel diameter changes in different tire pressure and loadings. 2. If actual speed tested by GPS, accuracy depends on GPS signal and update frequency | 1. Actual speed calculated by effective wheel diameter 2. Actual speed can be adjusted if requested |
X9 Scooter Controller Fault Codes
| Fault code | Controller fault code description | Solutions |
| A | A communication fail | Check the integrity of the communication line wiring |
| B | b Accelerated dial failure | Change finger throttle |
| C or C0 | C or C0 Motor Hall failure | Check the integrity of the wiring of the motor Hall communication line, if there is no abnormality, replace the motor |
| E or E0 | E or E0 Undervoltage alarm | Check whether the battery voltage is in a low battery state; charge the battery and test or replace another battery with sufficient power to test; if the battery power is normal, you need to replace the controller to test |
| F or F0 | F or F0 Overcurrent alarm | 1. The internal MOS tube of the controller is broken down and caused a short circuit, and there will be a need to replace the controller after shutting down 2. During high-speed riding, if you suddenly go through potholes or high-speed stalls, the motor is subjected to strong resistance, and a large reverse current is generated to trigger protection, which will disappear after shutdown and restart. |
HX X10 Electric Scooter Error Codes
Fault Code | Controller Fault Code Description | Solution (X10 Scooter Error Code) | |
A | bA | Front Drive Communication Fail | Check the integrity of the communication line wiring |
FA | Rear Drive Communication Fail | ||
b | Acceleration dial fail | Change Thumb Throttle | |
C | FC | Front Motor Hall failure | Check the integrity of the wiring of the motor Hall communication line, if there is no abnormality, replace the motor |
bC | Rear Motor Hall failure | ||
E | Undervoltage alarm | Check whether the battery voltage is in a low battery state; charge the battery and test or replace another battery with sufficient power to test; if the battery power is normal, you need to replace the controller to test | |
F | FF – Front | Front Drive Controller Overcurrent alarm | 1. The internal MOS tube of the controller is broken down and caused a short circuit, and there will be a need to replace the controller after shutting down 2.During high-speed riding, if you suddenly go through potholes or high-speed stalls, the motor is subjected to strong resistance,and a large reverse current is generated to trigger protection,which will disappear after shutdown and restart. |
bF – Back | Rear Drive Controller Overcurrent alarm | ||
dF – Dual | Dual Drive Controller Overcurrent alarm | ||
H | Brake Fail | Check whether the brake hall switch is off, if not, need to change the brake lever | |
d | Fd- Front | Front Motor Stall | Restart the scooter |
bd- Back | Rear Motor Stall | ||
dd- Dual | Dual Motor Stall | ||
X7 X8 X9 Scooter Failed to Start
| Failure Description | Analysis | Solutions | |
| 9 | Scooter un-powered, failed to start and not rotate | ||
| 10 | New sample failed to start | Refer to Table “Trouble Shooting on Startup”. Defective controller with high probability | Replace related parts |
| 11 | Failed to start and charge after use several times | Refer to Table “Trouble Shooting on Startup”. Defective controller with high probability | Replace related parts |
| 12 | Powered off after start or shift gears | Startup communication fault. Started normally but powered off in 5 seconds | Check communication connection and wire covering integrity |
| 13 | Motor lost driving force while riding | 1. Speed up accelerator abnormal. “B” displayed on dashboard 2. Motor Hall signal fault. “C” displayed on dashboard 3. Controller system fault 4. Happens during maintenance. Pay attention to the match between controller and dashboard | Check related parts while fault codes appears otherwise check the controller |
| 14 | Motor stuck | Motor technical problem with internal interference | Replace moter |
| 15 | Manual rotating motor stuck after startup | Motor phase line short-circuit. Disconnect the motor and controller to judge defective Reason 1: Phase line connector defective, or protective cover came off Reason 2: Controller fault in driving circuit abnormal Reason 3: Motor internal process failed | Reconnection or replace related parts |
| 16 | Motor noisy and not able to rotate | 1. Check motor hall wire in order while accelerator stuck 2. Check if getting stuck by rotating motor manually and find out defective part | |
Electric Controller Failure - Scooter X8 X7 X9
| Controller Failure | Analysis | Solutions | |
| 17 | Controller or Related Parts Fault | ||
| 18 | Connector of controller phase line burnt after replacing | 1. M30 plug weld or insertion not in place 2. Connector loose 3. Connector insertion not in place | 1. Replace MR30 with bullet connector 2. Check connection |
| 19 | Connection of battery and controller burnt | Controller power short-circuit | Replace controller |
| 20 | How to judge the controller burnout | 1. Failed to start 2. Motor un-powered 3. Motor stuck | Elimination methods Change controller with same model and software version to test |
Scooter Battery Fault - X7 X8 X9
| Battery Failure | Analysis | Solutions | |
| 25 | Battery Fault | ||
| 26 | Independent charging not available but chargeable after being assembled in scooter | Charger port failed to connect | Replace battery |
| 27 | Not available in charge after being assembled in scooter but chargeable for independent part | 1. Controller charging failure 2. Charger cable to discharge terminal defective | |
| 28 | Charger shows green, power shows less than 5 grids and nothing wrong with range while installing or removing the battery | Controller fault | Replace controller |
| 29 | Charger shows green, power shows less than 5 grids and nothing wrong with range while installing or removing the battery | 1. Check charger voltage to ensure 42V or above 2. Check battery voltage to ensure 41.5V or above | |
| 30 | Full power plunged after riding | Power at critical state and drops more for riding upslope | Test again at full power |
| 31 | Power Plunge from full grid while riding | Battery fault if power drops by 2 grids in 5 minitues | Replace battery |
| 32 | Riding powered off suddenly at three-grid or four-grid power remaining | Battery Fault on Cell Voltage Imbalance | Replace battery |
| 33 | Test Panosonic battery with 12.8AH results in 8.55AH, and with 6.4AH results in 5.8AH | Battery fault – Testing method: Discharge from voltage 42V to 27V at constant current and full power to test the total capacity in process | Replace battery |
| 34 | After installing Panosonic battery with X7-6.4AH in full power, riding powered off in 2 seconds after startup and not able to continue unless replacing new battery | Battery fault in bad connection of connectors | Replace battery |
| 35 | Red light on charger flickers while charging | Charger protection at voltage lower than 10V | Keep charging and charge in time at low power |
| 36 | How to judge if battery slept or damaged | 1. Test Voltage; Protection at voltage higher than 25V and lower than 27V; Voltage lower than 25V affects battery lifespan; Voltage higher than 10V can activate the charger. Otherwise battery totally damaged 2. While voltage lower than 5V, charging should be activated by regulated power supply at 5V and change to 10V to activate again after voltage raises. If voltage not go up, battery totally damaged | |
| 37 | How to distinguish battery made in China from importing one | 1. Label and Laser carving; Label shows brand code and Lase carving shows cell code 2. Take battery apart to check brand according to printing code | |
| 38 | Charging time | Charging time T= Capacity(Ah)/Current(A) + 1h | |
| 39 | Lifespan | Capacity remains 70% after discharging 1000 times circularly for importing batteries, while the ones made in china remains 80% after discharging 500 times circularly | |
E Scooter Mechanic Problems - X7 X8 X9
| Other Failure | Analysis | Solutions | |
| 40 | Motor and Rear Wheel | ||
| 41 | Motor noisy while riding | Motor process problems or motor Hall fault | |
| 42 | Failed to pump in vacuum tyre | Tyre processing problems | Improved |
| 43 | Tyre leaking | Tyre processing problems | Improved for many times and defective rate decreases from 3% to 1% |
| 44 | Front wheel swaying | Offset is ±1mm in normal | |
| 45 | How to judge motor burned out | “C” displayed on dashboard if controller works in normal; Damage rate for other parts is very low or “0” | |
| 46 | Mechanical Fault | ||
| 47 | Plastic and decorative covers on both sides of fork discoloured due to overheating motor | 1. Motor surface temperature reached up to 60 degree after continuous riding on slope with load and for more than half an hour 2. Covers has no touch with motor so that their temperature is close to ambient temperature 3. Plastic changes color due to sun and rain not motor. The lighter the color is, the easier it changes | 1. Replace plastic covers 2. Never place it in outdoor |
| 48 | throttle on X8 sample broken | Caused by impact of external forces | Replacing the brake or Throttle |
| 49 | Front and rear fenders broken | 1. Fenders may be hanged to steps or objects, resulting in reverse impact to make big distortion 2. Not broken under positive distortion or twisted 90 degree | Replace fenders |
| 50 | Disc brake too tightened with brake and brake failure | 1. Disc deflection 2. Disc installation and correction not in place 3. Right and left shift caused hub and locking size deviation | 1. Correct Disc and Installation 2. Replace hub |
| 51 | Pole shaked while riding and rotated with abnormal noise | Screws on the pole loosen while riding | |
| 52 | Pole crunched while riding | Screws on the pole loosen while riding | |
| 53 | Large gap for X6 anti-slip pedal | 1. Processing error 2. Overload 200kg caused pedal distortion | Replace pedal |
Other Common E-Scooter Issues
| Other Failure | Analysis | Solutions | |
| 22 | About Range: Range Test Corresponding to Battery Capacity | 5AH (Battery Made in China): 10~20km 6.4AH (Panosonic Battery): 15~25km 10.4AH: 25~35km 12.8AH: 35~45km | 1. Influence Factors ①Capacity ②Load ③Temperature ④Wind Speed ⑤Road Condition ⑥Operation 2. Range for less than minimum rating is abnormal while riding new at load 75kg and gear 2 |
| 55 | Accelerator not working (Scooter rushes out without touching accelerator) | 1. Spring not rebound in place (Spring fall off inside or not able to rebound for loosen screws stucking ) 2. Accelerator Fault; Accelerator starts working at 1.4V. Voltage is 0.8-1.4V in normal without push | 1. Adjust spring installation 2. Tighten accelerator fixed screws down 3. Replace accelerator |
| 56 | Accelerator spring fall off easily | 1. Spring installation improperly 2. Shell distortion by external force and spring fall off | Adjust installation or replace accelerator |
| 57 | X7 taillights not working while braking | 1. Bad connection for taillights 2. False welding in tailights circuit | 1. Check connection 2. Replace taillight board or controller |
| 58 | Poor lighting for lamp at higher location | Assembling error | Fix the screws |
| 59 | ABS function available in X7/X8? | Yes. Disconnected from motor by electronic brake and ABS function working | |
| 60 | How to keep the speed at 20km/h or 32km/h? | Both 20km/h and 32km/h available in general program. Set P4 referring to instruction “Fault Code and Settings” | |
| 61 | X7/X8 APP bluetooth unable to connect. One in three connection available | 1. Something wrong with phone compatibility. Version 5.1 or above asked for Android and no requirements for IOS 2. MAC address not uploading to server and bluetooth locked |