DRIVE MOTOR OR MOTOR CONTROL BOARD - HORIZON FITNESS

ncwalkerncwalker
in Treadmill Problems
We have a Horizon Treadmill - model CST4.5. After a few years of inactivity, we started using it again. When we started it up, there was a slight grinding noise... more noticeable at slower speeds - 4.5mph and lower. There was also some intermittent hesitations. After a few weeks of use, the treadmill died. Do you think the issue is the drive motor or the motor control board?
Thanks.

Comments

  • admin-itadmin-it
    I would test the drive motor first to see if that is the problem first.
    https://www.treadmilldoctor.com/motor-testing
  • ncwalkerncwalker
    Motor works based on testing. Is there a way to test the motor control board??
  • admin-itadmin-it
    Drive Motor Connection
    Procedures:
    Using a dc volt meter (if non-auto ranging set for the 200vdc range), test the voltage at the red and black motor
    leads with the motor still attached.
    Note: This should be tested after the console cable and optic sensor points because they can give the same
    results as a defective lower board.
    Note: A non-functional system may still have a voltage present with no motor attached. For accurate results, the
    motor must be attached when the voltage is checked.
    Desired Results:
    The voltage charts contain typical desired results on a fully functional system. A variance from the norm would
    indicate a defective component.

    0.5mph
    Volatge After Start @ 10.0mph
    Across Motor Out,
    No Motor
    Attached
    0.0-22.5 vdc 0.0-22.5 vdc 0.0-22.5 vdc
    Across Motor Out,
    W/ Motor
    Attached
    0.0 vdc 2.5- 0 vdc 80-100.0 vdc
  • ncwalkerncwalker
    Thanks... I will give it a try.
  • admin-itadmin-it
    GOOD LUCK.
  • ncwalkerncwalker
    So how do you replace a motor control board on a Horizon CST4.6 Treadmill?
  • admin-itadmin-it
    The motor controller is $241.99 plus $6.99
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