AAE-L/M1AB, ABE-L/M1AB Troubleshooting Guide
1. Battery Not Working / Out of Power
1.1. Turn the battery key to “ON,” press and hold the charge indicator button, and observe the indicator light:
If only one red light is on or no lights are illuminated, the battery is depleted. Charge the battery for at least 4 hours before use. Observe the charger for a solid green light indicating a fully charged battery.
2. Wheels Slip Without Moving When Pedaling
2.1. While pedaling, check if the chain moves:
If not, the crankshaft may be faulty. Replace it.
If it moves, inspect the flywheel:
Tighten the screws securing the flywheel.
If still loose, replace the flywheel.
3. LCD Display Doesn’t Light Up
3.1. Ensure the battery key switch is in the “ON” position.
3.2. Press and hold the battery power button to check the indicator light:
If only one red light is on, the battery is out of power. Fully charge it.
If one red and one green light, or one red and two green lights are on (indicating power):
Long-press the “M” button on the LCD display:
If it doesn’t turn on, check the wiring harness between the controller and display:
If secure, replace the display first (the controller may also be faulty).
If loose, reconnect it properly.
4. Display On but Motor Doesn’t Work When Throttling
4.1. Check the display for error codes or fault symbols:
If present: Refer to Section 7 for troubleshooting.
If absent:
Ensure the pedal-assist (PAS) mode is set to 1–5:
If not, adjust to a non-zero mode and test.
If set, ride in PAS mode:
If the motor works, check the throttle wiring harness. If secure, replace the throttle.
If the motor doesn’t work, remove the controller (under the battery cover), set a multimeter to AC voltage, fully turn the throttle, and measure the three phase lines between the controller and motor:
If voltages are equal, the controller is fine; replace the motor.
If unequal, replace the controller.
5. Headlight Doesn’t Light Up
5.1. Confirm the display is on.
5.2. Check the wiring harness between the controller and headlight for a secure connection.
5.3. Press the horn button to test if the horn sounds.
5.4. If all checks are normal, replace the headlight.
6. Battery Cannot Be Charged (Still Shows No Power After 4–5 Hours)
6.1. After connecting the charger to power (assuming 4–5 hours of charging), observe the indicator light:
If green before connecting and red after, the battery isn’t holding a charge. Replace it.
If red even without the battery, the charger is faulty. Replace it.
If consistently green, the fuse may be blown, or the battery is in low-power protection mode:
Check the fuse. If intact, the battery is in protection mode and needs replacement.
7. Common Error Codes
7.1. E02: Brake Handle Issue
Ensure the brake handle buckle is reset and properly installed. Reconnect the harness between the brake handle and the controller. If normal, replace both brake handles.
7.2. E06: Battery Undervoltage
Fully charge the battery.
7.3. E07: Motor Abnormality
Check the motor-to-controller wiring harness. Reconnect it horizontally if loose.
7.4. E08: Throttle Failure
Verify the throttle-to-controller wiring harness. If secure, replace the throttle.
7.5. E09: Controller Failure
Replace the controller.
7.6. E10: Communication Reception Failure
Check the controller-to-display harness. If normal, replace the controller.
7.7. E11: Communication Failure
Check the controller-to-display harness. If normal, replace the display.
7.8. E12: BMS Communication Failure
Replace the battery.
7.9. E13: Headlight Failure
Replace the headlight.
8. E-Trike Doesn’t Work
8.1. Check if the display is on:
If on:
Look for error codes:
If present, see Section 7.
If absent, ensure PAS is set to 1–5:
If not, adjust and test.
If set, test in PAS mode:
If the motor works, check the throttle harness. If secure, replace the throttle.
If not, measure the controller-to-motor phase lines (as in 4.1.2). Equal voltages indicate a motor issue; unequal voltages indicate a controller issue.
If off:
Ensure the battery key switch is “ON.”
Press the battery power button:
If one red light, charge the battery.
If one red and one green, or one red and two green:
Long-press the “M” button:
If the display doesn’t turn on, check the controller-to-display harness. If secure, replace the display first.
9. Brakes Don’t Work
9.1. Ensure the brake cable is secured in the brake handle clip.
9.2. Loosen the brake caliper screws, tighten the cable, then resecure it.
10. Chain Keeps Falling Off
10.1. Check if the front and rear sprockets are in the same plane. If not, loosen the nuts and adjust them.
10.2. Inspect the sprockets for bending or deformation.
10.3. If the chain is too loose, adjust the front and rear frames to tighten it.
11. Handlebar Cannot Control Front Wheel Direction
11.1. Verify the screws between the handlebar and stem are tightened.
11.2. Ensure the long nut between the stem and front fork is tight and the handlebar is perpendicular to the front wheel’s plane.
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