LET IT GO M4 Controller

LET IT GO Controller for iENYRID M4 Electric Scooter User Manual

Model: M4 Controller

1. Introduction

This manual provides essential information for the proper installation, operation, and maintenance of the LET IT GO Controller, specifically designed as a replacement or spare part for the iENYRID M4 Electric Scooter. Understanding these instructions will help ensure the longevity and correct functionality of your scooter's electrical system.

2. Safety Information

  • Always disconnect the scooter's battery before attempting any installation, removal, or maintenance of the controller or other electrical components.
  • Wear appropriate personal protective equipment, including safety glasses and gloves, when working with electrical components.
  • Ensure all connections are secure and properly insulated to prevent short circuits.
  • Avoid exposing the controller to water or excessive moisture.
  • If you are unsure about any step, consult a qualified technician or professional electric scooter repair service. Improper installation can lead to damage to the scooter or personal injury.

3. Package Contents

Upon opening the package, verify that all components are present and undamaged:

  • 1x LET IT GO Controller for iENYRID M4 Electric Scooter

4. Setup and Installation

The controller is a critical component of your electric scooter's electrical system. Installation typically involves replacing an existing controller. Due to the complexity of electrical systems, professional installation is highly recommended.

General Installation Steps (Consult a professional for detailed guidance):

  1. Preparation: Ensure the scooter is powered off and the battery is disconnected. Access the old controller's location, usually within the scooter's deck or stem.
  2. Disconnection: Carefully disconnect all wiring from the old controller, noting the position and color of each wire. It is advisable to take photos for reference.
  3. Removal: Remove the old controller from its mounting.
  4. Installation of New Controller: Mount the new LET IT GO controller in the designated position.
  5. Wiring: Connect the wires from the scooter to the new controller. Match the wire colors and connector types precisely. Common connections include:
    • Motor phase wires (typically three thick wires)
    • Hall sensor wires (typically five thinner wires)
    • Battery power wires (red for positive, black for negative)
    • Ignition/key switch wire
    • Throttle signal wire
    • Brake signal wires (low level)
    • Display/instrument panel wires
    • Light wires
  6. Secure Connections: Ensure all connections are firm and properly insulated.
  7. Testing: Before fully reassembling the scooter, reconnect the battery and perform a preliminary test of the scooter's functions (power on, throttle response, brakes, lights).
  8. Final Assembly: Once confirmed operational, secure the controller and reassemble the scooter's covers.
LET IT GO Controller for iENYRID M4 Electric Scooter with various colored wires

Image 1: Top view of the LET IT GO Controller, showing the main unit and the array of connected wires for various scooter functions. The label indicates it is a DC Moto Controller for Lithium Battery, 48V, 20A.

LET IT GO Controller for iENYRID M4 Electric Scooter from a side angle, showing wiring harness

Image 2: Side view of the controller, highlighting the numerous wires and connectors extending from the unit, including the main power and signal cables.

5. Operating Instructions

The controller operates as the central processing unit for your electric scooter's electrical functions. Once correctly installed, its operation is integrated with the scooter's existing controls (throttle, brakes, display).

  • Power On/Off: The controller activates when the scooter's main power switch or key is turned on.
  • Speed Control: It interprets throttle input to regulate motor speed and power output.
  • Braking: It processes brake lever signals, engaging the electronic brake system (low level) and potentially cutting motor power.
  • Display Communication: It sends and receives data from the scooter's display, showing speed, battery level, and other operational parameters.

No direct user interaction with the controller itself is required during normal operation.

6. Maintenance

Proper maintenance ensures the longevity and reliability of your controller:

  • Keep Dry: Protect the controller from water, rain, and excessive humidity. Water ingress can cause severe damage.
  • Cleanliness: Periodically inspect the controller and its connections for dirt, dust, or corrosion. Clean with a dry, soft cloth.
  • Secure Connections: Ensure all wire connections remain tight and free from fraying. Loose connections can lead to intermittent operation or damage.
  • Avoid Physical Damage: Protect the controller from impacts or vibrations that could damage its internal components.

7. Troubleshooting

If your scooter experiences issues after controller installation, consider the following:

  • Scooter Not Powering On:
    • Check battery connection to the controller.
    • Verify the ignition/key switch wire is correctly connected.
    • Ensure the battery is charged.
  • Motor Not Responding to Throttle:
    • Check throttle signal wire connection.
    • Inspect motor phase wires and Hall sensor wires for proper connection.
  • Erratic Behavior or Error Codes on Display:
    • Review all wiring connections for looseness or incorrect placement.
    • Consult the iENYRID M4 scooter's original manual for specific error code interpretations.
  • Brakes Not Functioning:
    • Check brake signal wire connections.

If troubleshooting steps do not resolve the issue, contact customer support or a professional technician.

8. Specifications

These specifications are for the LET IT GO Controller for the iENYRID M4 Electric Scooter:

  • Model: M4 Controller
  • Frame Material: Aluminum (Controller Casing)
  • Voltage: DC 48V
  • Current: 20A
  • Brake Type: Low Level (Electronic Brake)
  • Manufacturer: Yongkang Zhitong Industry & Trade Co., Ltd (as indicated on product label)
  • Part Number: iE-M4 (referring to the compatible scooter model)
LET IT GO Controller for iENYRID M4 Electric Scooter, showing the label with specifications

Image 3: Close-up view of the controller's label, clearly displaying key specifications such as voltage (DC48V) and current (20A).

LET IT GO Controller for iENYRID M4 Electric Scooter from another angle, highlighting the connectors

Image 4: Angled view of the controller, providing a clearer look at the various types of connectors and their arrangement.

LET IT GO Controller for iENYRID M4 Electric Scooter, showing the full unit and wiring

Image 5: Full view of the controller and its complete wiring harness, illustrating the compact design of the unit.

9. Warranty and Support

The LET IT GO Controller for iENYRID M4 Electric Scooter comes with a 1-Year Manufacturer Warranty. This warranty covers defects in materials and workmanship under normal use.

For warranty claims, technical support, or any questions regarding the product, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase for warranty validation.