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How to Replace a Treadmill Drive Motor: Step-by-Step Guide

If your treadmill's drive motor is malfunctioning or has stopped working, it may need to be replaced. Follow these steps to safely and effectively replace the drive motor on your treadmill.

Tools and Materials Needed:

  • Screwdriver (Phillips and flathead)
  • Allen wrench
  • Wrench or socket set
  • Replacement drive motor compatible with your treadmill model
  • Safety gloves

Step-by-Step Instructions:

  1. Turn Off and Unplug the Treadmill:

    • Ensure your safety by turning off the treadmill and unplugging it from the electrical outlet.
  2. Remove the Motor Cover:

    • Locate the motor cover, usually found at the front of the treadmill.
    • Use a screwdriver to remove the screws securing the motor cover.
    • Carefully lift off the motor cover to expose the drive motor and other components.
  3. Disconnect the Drive Motor Wires:

    • Identify the wires connected to the drive motor.
    • Take note of how the wires are connected to the motor terminals. It’s helpful to take a picture for reference.
    • Carefully disconnect all the wires from the drive motor.
  4. Loosen the Drive Belt:

    • Locate the adjustment bolts that secure the drive motor in place.
    • Use an Allen wrench or socket set to loosen these bolts, which will relieve tension on the drive belt.
    • Slide the drive belt off the motor pulley and set it aside.
  5. Remove the Old Drive Motor:

    • Use a wrench or socket set to remove the bolts or screws securing the drive motor to the treadmill frame.
    • Carefully lift the drive motor out of its position.
  6. Install the New Drive Motor:

    • Position the new drive motor in place of the old one.
    • Secure the new motor with the bolts or screws, ensuring it is firmly attached to the treadmill frame.
  7. Reconnect the Drive Motor Wires:

    • Using your reference photo, reconnect all the wires to the new drive motor.
    • Ensure each connection is secure and correctly placed to avoid any wiring issues.
  8. Reinstall the Drive Belt:

    • Slide the drive belt onto the motor pulley.
    • Adjust the tension by tightening the adjustment bolts. The belt should be snug but not overly tight.
    • Ensure the drive belt is properly aligned and runs smoothly over the pulleys.
  9. Replace the Motor Cover:

    • Once the drive motor is securely installed and the drive belt is properly tensioned, carefully place the motor cover back onto the treadmill.
    • Use a screwdriver to secure the motor cover with screws.
  10. Turn On and Test the Treadmill:

    • Plug the treadmill back into the electrical outlet.
    • Turn on the treadmill and test it at a low speed to ensure the new drive motor is functioning properly.
    • Gradually increase the speed and check for smooth operation and proper alignment.

Safety Reminder:

Always turn off the power to the treadmill and unplug it before performing any repairs or adjustments. If you are unsure about any steps or feel uncomfortable performing the replacement, it’s crucial to contact a professional technician for assistance.


For a cost-effective and eco-friendly solution to treadmill repair issues, consider sending your faulty components to UpFix for repair. UpFix offers repair services that can save you up to 80% compared to buying new components, while also supporting an eco-friendly service by reducing electronic waste. Visit UpFix.com for more details.