Symptom | Probable Cause | Corrective Action | Recommended Tools |
NO BELT
MOVEMENT
Treadmill in need of calibration.
Missing command to PWM.
Missing/incorrect voltage to motor.
Damaged motor.
•Run calibration. (page 14)
•Is PWM light blinking/ illuminated when fast button is pushed?
NO- Check continuity on wire harness, if harness has continuity breaks replace the harness. If harness has continuity- replace the upper panel. Refer to wiring harness diagram for your model.
YES- move on to next step, wire harness and control panel are OK.
•With treadmill in calibration mode
(page 14)
•Set speed at 4 MPH
•Check VDC across MTR 1 and MTR 2 with the motor leads connected to the motor the voltage should measure 10 VDC for every 1 MPH.
•If voltage is missing or low- Replace PWM.
•If voltage is greater than 20 VDC/MPH motor may have open windings.
•With PWM LED Blinking/ Illuminated- move the tread belt with your foot to see if motor begins to move on its own.
•If motor begins to move, inspect the condition of the brushes and the commutator.
•If brushes are bad- replace brushes
•If motor doesn’t turn or has a damaged com segment- replace motor.
Continue on next page…
PWM / Motor test cables
Note:
All trouble shooting should be performed in calibration mode.
Page 16
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