E7 Error CodeUpdated 6 days ago

Description

The display shows an E7 error indicating a fault detected from the motor hall sensor. The scooter powers on but will not respond to inputs or accelerate. In dual-motor models, only one motor may spin or the affected motor may lock.

Symptoms

• Scooter turns on with a persistent E7 code on the display
• Will respond to button presses but no throttle input
• Scooter will not accelerate
• Motor feels locked or “cogged”
• On dual-motor models, only one motor spins

Causes

• Damaged or pinched motor phase/hall sensor wire or connector
• Internal motor hall sensor failure or magnet damage
• Controller fault or damaged hall sensor input stage

Troubleshooting Steps

• Perform a motor calibration and power cycle the scooter.
• Inspect the motor cable along the fork/arm and deck for cuts, kinks, or crushed sections.
• Reseat and clean motor and controller connectors; check for bent pins or corrosion.
• Hand-rotate the wheel to detect internal grinding or cogging unrelated to bearings.
• On dual-motor models, swap motor connections at the controller; see if issue moves to the other motor.

Solution

The issue is typically caused by a damaged hall sensor wire or a failed motor hall sensor; in some cases, the controller’s hall input stage fails.

• Run motor calibration (See this video)
• Inspect and reseat motor and controller connectors; repair any damaged wiring
• If grinding or internal binding is felt when hand-rotating, replace the motor
• On dual-motor models, swap motor leads to isolate the fault
• If the fault follows the motor, replace the motor
• If the fault stays with the controller side, replace the controller